Metal Dome & Dome Array blog – Best Technology

S10F-200-N Metal Dome Introduction & Specification

Posted on February 2, 2025 by Love Dome

What is S10F-200-N Metal Dome?

The S10F-200-N metal dome is a small yet essential component in electronic devices that require tactile feedback. It is a snap dome switch made from high-quality stainless steel, designed to provide a crisp and reliable tactile response when pressed. These domes are commonly used in applications such as membrane switches, keypads, and control panels, where they help users confirm button presses through a noticeable click.

The S10F-200-N model stands out due to its durability, consistency, and precision. It offers a specific actuation force of 200 grams, ensuring a firm and responsive touch. Designers choose this dome for its ability to maintain performance over millions of cycles, which is crucial in devices used frequently. The dome’s non-plated finish also provides a natural, stable response without additional coatings that may wear over time.

Whether in medical devices, industrial machinery, or everyday consumer electronics, the S10F-200-N metal dome ensures that users experience a reliable tactile response, making it an integral part of modern interface designs.

S10F-200-N Metal Dome Introduction & Specification

How to Read S10F-200-N Metal Dome?

Decoding the S10F-200-N model number provides valuable insights into its characteristics. Each part of the code represents a specific feature:

S – This refers to the mold number used in the manufacturing process, indicating the specific design and production parameters for the dome.
10 – This indicates the dome’s size, which is 10mm in diameter. The size helps determine its compatibility with different electronic designs.
F – The letter “F” signifies the shape or type of the dome, which affects how it responds to pressure and provides tactile feedback.
200 – This number represents the actuation force required to press the dome, measured in grams. In this case, 200 grams is needed to activate the switch, offering a firm tactile response.
N – The letter “N” indicates that the metal dome has no dimple, providing a smooth and uniform tactile feel without the additional indentation that some domes feature.

S10F-200-N Metal Dome Specification

Material: Made from high-grade stainless steel, ensuring corrosion resistance and long-term durability.
Size: The dome has a 10mm diameter, allowing it to fit into compact electronic designs.
Actuation Force: It requires 200 grams of pressure to activate, providing a satisfying tactile response.
Lifespan: Engineered for extended use, it can endure up to 5 million cycles, maintaining performance over time.
Surface Finish: With a non-plated finish, the dome offers reliable performance without concerns about coating wear.
Operating Temperature: Suitable for use in various environments, the dome functions efficiently between -40°C to 85°C.
Thickness: The dome has a typical thickness that allows flexibility while ensuring a solid click response.

S10F-200-N Metal Dome Application

The S10F-200-N metal dome finds applications across various industries due to its reliable tactile response and durability. It is widely used in:

1. Membrane Switches

One of the primary applications of the S10F-200-N dome is in membrane switches, which are commonly found in appliances, industrial control systems, and medical devices. The dome provides a tactile response when the switch is pressed, ensuring users feel a definite click when input is registered.

2. Consumer Electronics

From remote controls to handheld devices, metal domes enhance user interaction by delivering a responsive touch. The S10F-200-N dome’s durability ensures devices remain functional even after repeated use.

3. Medical Devices

Accuracy and reliability are crucial in medical equipment. The S10F-200-N dome is used in diagnostic tools, hospital equipment, and handheld monitoring devices where reliable tactile feedback is essential.

4. Automotive Controls

Vehicles require robust control systems for navigation, entertainment, and other functions. The S10F-200-N dome is commonly used in dashboard controls, steering wheel buttons, and touch-sensitive interfaces.

5. Security Systems

Keypads in access control systems, alarm panels, and secure entry systems rely on metal domes for reliable operation. The S10F-200-N dome provides a consistent tactile response that enhances security by confirming key inputs.

S10F-200-N Metal Dome Equivalent

When looking for alternatives to the S10F-200-N metal dome, it’s essential to consider factors like size, actuation force, and durability. Several manufacturers produce domes with similar specifications, ensuring compatibility with existing designs.

Common equivalents include domes with the same 10mm diameter and 200-gram force, often with slight variations in surface finish or shape. When selecting an equivalent, it’s important to match the specifications closely to maintain performance.

Some equivalents may offer additional features, such as plating for corrosion resistance or different dome shapes for customized tactile responses. Consulting with a reliable supplier helps ensure the chosen alternative meets the required standards for the intended application.

FAQs

1. What makes the S10F-200-N metal dome a popular choice?

Its durable construction, consistent tactile response, and long lifespan make it a preferred option in many industries.

2. How does the dome’s lifespan impact product design?

A long lifespan reduces maintenance needs and enhances product reliability, making it ideal for high-usage devices.

3. What is the difference between plated and non-plated metal domes?

Plated domes have an additional coating for corrosion resistance, while non-plated domes offer a natural, stable response.

4. How does the S10F-200-N dome contribute to cost savings?

Its durability and reliability help reduce replacement costs and downtime, ensuring long-term value.

5. What precautions should be taken during installation?

Care should be taken to align the dome properly to avoid misalignment that could impact performance.

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Do LEDs on Keyboards Make Them Hot?

Posted on January 30, 2025 by Love Dome

Keyboards have come a long way from simple input devices to something that reflects personal style and functionality. In recent years, the inclusion of RGB LED lighting has become a common feature in many keyboards. Whether it’s for gaming, work, or just personal preference, LED lighting allows users to customize their keyboards in ways that were once unimaginable. But this leads to a pressing question: Do LEDs on keyboards make them hot? This question is of particular concern to gamers, typists, and anyone who spends extended hours using their keyboards. After all, the last thing anyone wants is a keyboard that heats up and becomes uncomfortable to use. In this article, we’ll break down how LEDs work, explore whether they affect the temperature of your keyboard, and discuss other factors that might contribute to your keyboard heating up.

How Do LED Lights on Keyboards Work?

LEDs, or Light Emitting Diodes, are a type of light source that generate light when an electric current passes through a semiconductor material. Unlike traditional incandescent light bulbs, which rely on heating a filament to produce light, LEDs create light through a process called electroluminescence. When electricity flows through the LED’s semiconductor material, it emits photons (light particles), which we see as visible light.

On keyboards, these tiny LEDs are strategically placed beneath each key or along the frame to provide backlighting or RGB effects. The small size of the LEDs and their ability to produce bright light with minimal power consumption make them ideal for modern keyboards. They create the colorful, customizable lighting effects that many users enjoy without requiring excessive power or generating a significant amount of heat.

Are LEDs in Keyboards Energy-Efficient?

Absolutely. LEDs are some of the most energy-efficient lighting options available today. They require very little power to operate, making them a preferred choice for modern electronics. In a typical keyboard, the LEDs’ power consumption is minimal when compared to the overall power usage of the device.

For example, even a fully illuminated RGB keyboard, with all keys glowing brightly, would still consume very little electricity. When you think about it, the power usage for a single key’s LED might be comparable to that of a small light bulb or less. In the grand scheme of things, the total power consumption from the LEDs is a fraction of what is needed for other components like the processor, display, or computer’s cooling system.

Can LED Lighting on Keyboards Cause Overheating?

The simple answer is: No, LEDs in keyboards do not cause overheating. In fact, the heat generated by LEDs is negligible. The LEDs in keyboards are designed to emit very little heat due to their energy efficiency and low power requirements. As a result, they are not a source of concern when it comes to raising the temperature of your keyboard.

Keyboards are designed with thermal management in mind, ensuring that even if the LEDs are used extensively, the device remains at a comfortable temperature. Keyboards with built-in LED lighting are generally equipped with materials that help dissipate any heat that may be produced. Plastic casings, metal frames, and specialized ventilation areas ensure that any heat produced by the device is quickly dispersed, maintaining an ideal operating temperature for the keyboard.

Even when the lights are set to maximum brightness, the amount of heat produced is still so minimal that it does not cause any noticeable increase in the keyboard’s temperature. If you do feel warmth in your keyboard, it is most likely due to other factors, such as the external environment or the power load being placed on the device, rather than the LEDs themselves.

What Factors Can Cause a Keyboard to Heat Up?

While the LEDs themselves aren’t responsible for heating up your keyboard, there are a few other factors that might contribute to warmth. Understanding these factors will help clarify why a keyboard might feel warm at times.

1. External Temperature and Environment

The temperature of your room or the area where you’re using the keyboard can play a significant role in how warm your keyboard feels. If you’re working or gaming in a particularly hot room, it’s natural for your keyboard to feel warmer, especially if it’s been in use for several hours. High ambient temperatures can cause keyboards to retain more heat and feel uncomfortable.

2. Device Power Usage

While LEDs consume very little power, other components of your computer or keyboard may contribute to the heat. If you’re using a gaming keyboard with additional features like mechanical switches, RGB lighting, or built-in screens, these devices might require more power to operate. The power demand from other high-performance components could lead to an overall increase in temperature, which can be felt in your keyboard.

3. Poor Ventilation

A lack of ventilation is another factor that can cause keyboards to heat up. If your workspace is cluttered or your computer is placed in a confined space, heat may become trapped around the keyboard, causing it to feel warmer than usual.

How Does LED Color Affect Heat in Keyboards?

One common misconception is that certain LED colors might generate more heat than others. However, this is not true. The color of the light emitted by the LED does not have a significant impact on how much heat it produces.

Most RGB LEDs in keyboards operate using red, green, and blue light sources. These LEDs combine to create a full spectrum of colors, which can range from cool blues to warm reds. But regardless of the color, the underlying mechanism that powers these LEDs is the same. The power consumption remains low across all colors, and the light emitted is efficient and cool to the touch.

So, whether your keyboard is glowing with vibrant blues or warm reds, the heat generated by the LEDs remains virtually the same. The color only affects the visual aesthetic of the keyboard and not its thermal performance.

Do Keyboards with RGB Lights Heat Up More Than Standard Keyboards?

RGB keyboards might seem like they would generate more heat because they feature multiple colors and elaborate lighting effects. However, in terms of actual temperature, RGB keyboards behave in much the same way as single-colored LED keyboards. The key difference lies in the customization options—RGB keyboards allow users to create an array of dynamic lighting patterns and colors, but they don’t require significantly more power to operate.

The truth is, RGB lighting doesn’t demand any more power than a single color LED does. The added lighting effects are typically controlled by the keyboard’s software and involve alternating between different colors and brightness levels. However, this switching effect doesn’t increase the power usage enough to cause any significant rise in temperature. Therefore, whether your keyboard is equipped with RGB lights or single-color LEDs, the heat generated will be minimal.

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What are car dashboard switches? Automotive Toggle Switches

Posted on January 27, 2025 by seo_li

What are car dashboard switches? Car dashboard switches are essential components in every vehicle. They ensure that essential functions are accessible and straightforward to operate while driving. Dashboard switches come in various forms, including toggle switches, rocker switches, and dimmer switches, each designed for specific purposes.

What are car dashboard switches?

Car dashboard switches are control mechanisms placed on the dashboard to manage different electrical functions of a vehicle. These switches provide a user-friendly way to turn systems on or off, adjust settings, or activate specific features. Examples include:

Light controls: Headlights, fog lights, and interior lighting.

Climate controls: Adjusting the air conditioning or heating system.

Entertainment system: Managing audio or media settings.

Safety features: Activating hazard lights or rear defrost.

Switches on modern dashboards are designed for ergonomic use, ensuring drivers can access controls without being distracted.

How are car dashboard switches made?

Creating car dashboard switches involves several precise manufacturing processes. These components must be durable, reliable, and responsive, often operating under extreme conditions such as high heat or vibration. Here’s how they’re made:

Design and Material Selection:

Dashboard switches are usually made from high-quality plastics, metals, and sometimes silicone for tactile feedback.

Engineers design switches with ergonomic considerations for optimal functionality and driver comfort.

Metal Domes and Conductive Components:

Inside many switches, metal domes or springs are used to create a tactile response. These parts conduct electricity to close or open circuits.

Injection Molding:

Switch casings and panels are made using injection molding. This process ensures consistency and precision in manufacturing.

Assembly and Testing:

Each component, including contacts, springs, and actuators, is assembled and tested for electrical performance, durability, and smooth operation.

Advanced testing ensures switches work flawlessly under different conditions.

How do car dashboard switches work?

Car dashboard switches operate by completing or interrupting an electrical circuit.

When you press or toggle a switch, it either connects or disconnects the circuit, allowing electricity to flow to the desired system.

Toggle Switches: A toggle switch moves a lever or knob to complete the circuit. For example, flipping a toggle switch turns headlights on or off.

Rocker Switches: These switches rock back and forth to perform the same function. Rocker switches are often used for window controls or dashboard lights.

Push-Button Switches: These are commonly used for engine start/stop functions or activating safety features. Pressing the button temporarily connects the circuit.

Switches are designed to provide a tactile or visual indicator to confirm activation. This feedback ensures drivers know when a system has been engaged.

Are there metal dome inside car dashboard switches?

Yes, metal domes are a common feature in many dashboard switches.

They are an integral part of the tactile feedback mechanism, providing a “click” sensation when the switch is pressed. These domes also serve as conductive elements, allowing electrical signals to pass through when the switch is activated.

Metal domes are preferred in automotive applications because they are:

Durable: Withstanding repeated use over time.

Responsive: Offering clear tactile feedback to users.

Reliable: Ensuring consistent electrical performance.

What are the car dashboard switches?

Dashboard switches come in various types, each suited for specific functions:

Rocker Switches: Common for controlling lights, window defrost, and auxiliary systems.

Toggle Switches: Typically used for older or classic car dashboards.

These switches are easy to operate and have a vintage appeal.

Dimmer Switches: Allow drivers to adjust dashboard or interior lighting brightness.

Push-Button Switches: Found in modern vehicles for features like engine start, hazard lights, or trunk release.

Touch-Sensitive Panels: Increasingly common in smart car dashboards, offering seamless control without physical buttons.

Custom Panels: Kit cars or modified vehicles often feature custom dashboard switch panels tailored to specific needs.

Why are dashboard switches important?

Dashboard switches provide quick and easy access to essential vehicle functions. Without them, controlling systems would be more complex and distracting.

The dashboard light switch lets you adjust brightness to avoid glare while driving at night. Similarly, rocker switches for climate control enable temperature adjustments without taking your eyes off the road.

The evolution of dashboard switches reflects changes in automotive technology:

Classic Car Dashboard Switches: These switches were primarily toggle-based and often mounted on metal or wood dashboards.

Smart Car Dashboard Switches: Modern vehicles use advanced panels with touch-sensitive controls, voice activation, or backlit rocker switches.

Conclusion?

Car dashboard switches are vital for controlling a vehicle’s systems with ease and precision. Whether you’re looking for classic toggle switches, modern smart panels, or custom switch panels for kit cars, understanding the features and benefits of each type is essential.

For high-quality metal dome solutions for your automotive needs, trust Best Technology. Please contact us at sales@bestpcbs.com!

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S8.4F-160-N Metal Dome Introduction & Specification

Posted on January 24, 2025 by Love Dome

What is S8.4F-160-N Metal Dome?

The S8.4F-160-N metal dome is a tactile switch component commonly used in electronic devices to provide responsive feedback when pressed. S8.4F-160-N metal dome is a specific product that made by Best Technology. It’s made from high-quality stainless steel, offering durability and reliability for various applications. The S8.4F-160-N is designed to meet the demands of different industries where precision and user experience matter.

How to Read S8.4F-160-N Metal Dome?

The code S8.4F-160-N follows a specific format that provides important details about the metal dome’s characteristics. Understanding each part of the code helps in identifying the right component for different applications.

S – Represents the mold number, which refers to the specific tooling used to manufacture the dome. This ensures consistency and quality in production.
8.4 – Indicates the diameter of the dome in millimeters. In this case, the dome has an 8.4mm size, making it suitable for compact designs.
F – Refers to the shape of the metal dome. Different shapes provide unique tactile responses and suit specific design needs.
160 – Represents the actuation force in grams. A force of 160g ensures a firm and responsive tactile feel without being too hard to press.
N – Specifies additional design details, such as surface finish or version within the product line.

Let’s take an example: S8.4F-280-D-Ni-RL

S8.4F-160-N Metal Dome Specification

The S8.4F-160-N metal dome is designed to meet the needs of modern electronic devices by offering precise and reliable tactile feedback. Below are its key specifications:

Material: High-quality stainless steel, known for its durability and resistance to corrosion. This ensures long-term reliability even in demanding environments.
Size: With an 8.4mm diameter, it fits into small spaces without compromising functionality.
Actuation Force: 160g force provides a comfortable yet firm tactile response, making it suitable for a wide range of applications.
Click Ratio: Typically around 55%, which defines the tactile feel and ensures a noticeable response when pressed.
Lifespan: Rated for over one million actuation cycles, demonstrating its durability in high-usage environments.
Operating Temperature: Suitable for a wide range of temperatures, making it useful in both consumer and industrial applications.
Thickness: A thin profile ensures seamless integration into compact devices while maintaining performance.

S8.4F-160-N Metal Dome Application

The S8.4F-160-N metal dome finds applications in various industries where tactile response and reliability are key factors. Some of the major industries using this dome include:

1. Consumer Electronics

In devices like remote controls, game controllers, and calculators, this metal dome ensures users receive instant feedback when pressing a button. The consistent tactile response helps enhance the overall user experience and prevents accidental inputs.

2. Medical Devices

Medical equipment requires precise tactile feedback, and the S8.4F-160-N provides that. It is used in diagnostic devices, monitoring systems, and portable medical equipment where reliability is crucial. Its durable design ensures it meets medical industry standards.

3. Industrial Control Panels

Factories and industrial setups use these domes in control panels and machinery interfaces. The 160g actuation force provides the right balance for industrial environments where operators need clear tactile confirmation without excessive effort.

4. Automotive Applications

Modern vehicles integrate these domes into dashboard controls, infotainment systems, and steering wheel buttons. The dome’s resistance to temperature fluctuations and frequent use makes it ideal for automotive settings.

5. Telecommunication Devices

From landline phones to communication keypads in mission-critical environments, these domes help ensure quick and accurate inputs, supporting reliable device operation.

S8.4F-160-N Metal Dome Equivalent

If the S8.4F-160-N metal dome is unavailable or an alternative is needed, there are several options with similar specifications. When selecting an equivalent, consider the following factors:

Size Compatibility: The replacement dome should match the 8.4mm diameter to fit existing designs without modifications.
Actuation Force: Alternatives should provide around 160g force to ensure similar tactile feedback.
Material Quality: Ensure the replacement dome uses stainless steel or an equivalent material to maintain durability and performance.
Click Ratio: A comparable click ratio is important to provide the same feel and reliability.
Lifespan Expectancy: Choosing a dome rated for at least one million cycles ensures long-term performance.

Several manufacturers offer alternatives that meet these criteria, ensuring smooth integration without compromising quality or functionality. Always check product datasheets to confirm suitability before making substitutions.

FAQs

1. What makes the S8.4F-160-N dome reliable for long-term use?

Its stainless-steel construction and high actuation lifespan make it ideal for devices requiring consistent performance over time.

2. Can this dome be used in outdoor environments?

Yes, its corrosion-resistant material makes it suitable for outdoor applications where exposure to moisture or temperature changes occurs.

3. How does the click ratio affect user experience?

A 55% click ratio ensures a clear, satisfying tactile response that improves usability without being too hard to press.

4. Is the S8.4F-160-N metal dome customizable?

Many manufacturers offer custom variations, including changes in actuation force, plating, and dimensions to meet specific requirements.

5. Does it require special installation methods?

No, it can be easily integrated into standard PCB layouts using adhesive or mechanical placement methods.

6. Are there any maintenance requirements for these domes?

Generally, no maintenance is needed, but keeping the surface clean ensures optimal functionality over time.

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Oblong series metal dome: Features & Design Guides

Posted on January 21, 2025 by Love Dome

What is Oblong Series Metal Dome?

The Oblong series metal dome is a unique component used in various electronic applications, known for its distinctive shape and superior functionality. Unlike the traditional round metal domes, the oblong design offers enhanced durability and mechanical performance, making it ideal for use in tactile switches, keypads, and other components where precision and reliability are critical.

These domes are crafted from high-quality stainless steel, which provides excellent resistance to wear and tear. The oblong shape ensures that the dome can withstand repeated usage without compromising its performance, making it a valuable choice for designs that require long-lasting functionality. This series is commonly used in various industries, including automotive, consumer electronics, and medical devices.

Oblong series metal dome: Features & Design Guides

Features of Oblong Series Metal Dome

Oblong series metal domes have a set of distinct features that make them a preferred choice in many designs. Here are some key characteristics:

Shape and Size: The oblong shape is the most defining feature. It offers a more consistent tactile feedback compared to round domes, making it ideal for applications that require a precise actuation force.

Durability: Made from high-quality stainless steel, these domes are built to last. They can withstand millions of actuations without significant degradation.

Tactile Feedback: The oblong shape enhances the tactile feel when pressed. This feature is important in applications where users rely on precise, noticeable feedback for effective operation.

Corrosion Resistance: Stainless steel’s inherent resistance to corrosion ensures the longevity of the dome, even in environments where moisture or chemicals may be present.

Flexibility: The metal domes are designed to be highly flexible, allowing for consistent performance over time, even in demanding conditions.

Advantages of Using Oblong Metal Domes

Choosing the Oblong series metal dome offers several key advantages that make it stand out in various applications. These benefits include:

Enhanced Tactile Performance: The oblong shape ensures more consistent feedback than traditional round domes. This tactile feedback is crucial for designs where precision and user satisfaction are paramount.

Increased Durability: Oblong metal domes are made to last. Their high resistance to wear and tear means that the components they are used in can endure for much longer, even in heavy-use scenarios.

Space Efficiency: The oblong shape can be more space-efficient, making it suitable for compact designs without sacrificing performance. This allows designers to fit more components into smaller spaces.

Reliability in Harsh Environments: The corrosion-resistant properties of stainless steel make these domes ideal for use in environments where other materials might fail. Whether it’s moisture, dust, or chemicals, the oblong series metal dome maintains its integrity.

Cost-Effective: While being durable and reliable, these domes also offer a cost-effective solution in the long term, as their extended lifespan reduces the need for frequent replacements.

Oblong Series Metal Dome Applications

The Oblong series metal dome finds its place in a wide range of applications across various industries. Some common uses include:

Keypads: The oblong design provides precise tactile feedback, making these domes ideal for use in keypads, where accurate user input is necessary. This makes them a popular choice in consumer electronics, such as mobile phones and remote controls.

Tactile Switches: Oblong metal domes are often found in tactile switches. Their durability and consistent tactile response make them the go-to choice for creating reliable switches in a variety of electronic devices.

Automotive Controls: In vehicles, where control reliability is critical, the oblong metal dome ensures that drivers get precise feedback when interacting with dashboard buttons or control panels.

Medical Devices: The high corrosion resistance and durability of the oblong series metal dome make it a suitable choice for medical devices. These components can withstand the frequent use and potential exposure to liquids in healthcare settings.

Consumer Electronics: The tactile response and long lifespan of these metal domes make them ideal for use in consumer products like home appliances, gaming controllers, and even kitchen gadgets.

Design Considerations of Oblong Series Metal Dome

When designing with Oblong series metal domes, several factors should be considered to ensure optimal performance and functionality. Here are some of the most important design considerations:

Actuation Force: The force required to actuate the dome is critical for ensuring a good user experience. The oblong shape allows for more flexibility in adjusting the actuation force, ensuring that the button feels just right for the user.

Size and Placement: The dimensions of the dome and its placement within the design play a crucial role in how the component performs. The oblong shape requires careful alignment to ensure it fits seamlessly within the product.

Environmental Factors: While the oblong metal dome is known for its resistance to corrosion, the environment where the product will be used must still be considered. For example, excessive heat or exposure to certain chemicals might impact the performance, so it’s essential to ensure that the dome is designed with these factors in mind.

Mounting Method: The method of mounting the dome on the PCB is important for ensuring a secure fit. Whether it’s through surface-mount or through-hole technology, the mounting must be designed to prevent misalignment and ensure consistent performance.

Longevity and Reliability: As oblong metal domes are used in products that require a long lifespan, it’s essential to factor in the expected lifespan of the component during the design phase. Choosing the right materials and manufacturing techniques will help ensure that the dome lasts for millions of cycles.

Can Oblong Series Metal Dome Be Mounted on PCB?

Yes, Oblong series metal domes can be mounted on PCBs. They are often designed with a specific mounting mechanism that allows them to be securely attached to the PCB, either by surface mount or through-hole methods. The choice of mounting style depends on the overall design of the device and the requirements for ease of manufacturing and cost-effectiveness.

When mounting oblong metal domes on a PCB, it’s important to ensure that the dome is positioned accurately to align with the switch or keypad mechanism. Misalignment can result in poor tactile feedback and a less satisfying user experience. Proper mounting techniques, such as using precise pick-and-place methods during assembly, help ensure that the domes are correctly positioned.

Additionally, it’s crucial to choose the right adhesive or soldering process to ensure that the dome remains securely attached during operation. As these domes are often subjected to millions of actuation cycles, the mounting process must be robust enough to handle long-term use without failure.

Conclusion

In conclusion, the Oblong series metal dome is a highly durable and reliable component that offers several advantages, including improved tactile feedback, long-lasting durability, and versatility across various industries. Its distinctive oblong shape makes it suitable for a wide range of applications, from keypads and switches to automotive controls and medical devices.

When designing with oblong metal domes, careful consideration of factors such as actuation force, size, placement, and mounting methods is essential to ensure optimal performance. Whether you’re designing a consumer electronic device or a complex industrial system, the oblong metal dome is a reliable choice that ensures both precision and longevity.

If you’re looking for a high-quality supplier of oblong series metal domes for your next project, Best Technology offers a range of precision-engineered solutions to meet your needs. With their expertise in manufacturing durable and reliable components, you can trust that your designs will be built to last.

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Normally Closed vs Normally Open Switch: What Are Differences?

Posted on January 17, 2025 by Love Dome

Switches are an essential part of everyday life. Whether you’re turning on a light, starting an appliance, or operating a piece of machinery, switches play a crucial role. Among the many types of switches available, normally closed (NC) and normally open (NO) switches are two of the most commonly used. Understanding their differences and functionality can help you choose the right type for your projects or applications.

In this blog, we’ll explain what these two switches are, how they work, and highlight the differences between them.

What Does a Normally Closed Switch Mean?

A normally closed (NC) switch is a type of switch that is closed by default, meaning the circuit is complete when the switch is not being operated. The term “closed” refers to the electrical connection being made, allowing current to flow. When you press or trigger the switch, it opens, interrupting the flow of electricity. In simpler terms, in the rest position (without any external action), the switch allows electricity to flow. It’s only when activated that it breaks the circuit.

Normally Closed vs Normally Open Switch: What Are Differences?

This type of switch is commonly used when you want an action to occur by default until the user interrupts it. For example, a door alarm that triggers when the door is opened will use a normally closed switch. When the door is closed, the circuit is complete, and the alarm stays off. Opening the door opens the circuit, turning the alarm on.

What Is the Normally Closed Switch in the Operated Condition?

When a normally closed switch in the operated condition, it is open. This means that the circuit is broken, and no current flows. The switch has been activated, either by pressing, flipping, or otherwise triggering the mechanism that opens it.

The operated condition is simply the switch in its active state, where its purpose is to stop current from flowing. For example, in a safety system, the normally closed switch could act as a safeguard, ensuring that power is cut off when a certain condition is met.

In other words, when you press the button or take action, you break the circuit, and the system responds accordingly by turning off, stopping a motor, or triggering an alarm.

What Is the Difference Between NC and NO Switch?

The main difference between normally closed (NC) and normally open (NO) switches is the state of the electrical circuit when the switch is in its resting position.

Normally Closed (NC): As mentioned, an NC switch is closed by default. This means that the circuit is complete and current can flow through the system when the switch is not activated. When you press or activate the switch, it opens and interrupts the flow of electricity.

Normally Open (NO): On the other hand, a NO switch remains open by default. This means that the circuit is incomplete, and no current flows until the switch is activated. When the switch is pressed or triggered, it closes, allowing electricity to flow and completing the circuit.

Here’s a quick summary:

NC switch: Current flows when the switch is not activated (closed state).
NO switch: No current flows when the switch is not activated (open state).

The choice between NC and NO depends on the application and desired function. For example, in a light switch, an NO switch is common because the light only turns on when the switch is pressed. However, in a safety shutdown system, an NC switch might be used to ensure that the system stays active unless manually shut off.

Does a Normally Closed Switch Have Continuity?

Yes, a normally closed switch has continuity when it is in its default state (unoperated). This means that when the switch is not being pressed or activated, the electrical circuit remains complete, and current can flow through the system.

However, when you activate the switch (pressing it or triggering it), the continuity is broken, and the circuit is opened. So, continuity only exists when the NC switch is in its resting state. If you’re measuring continuity with a multimeter, you’ll find that it indicates continuity (a closed circuit) unless the switch is activated.

How Does a Normal Switch Work?

A “normal” switch, referring to either NC or NO switches, works by physically opening or closing a circuit. These switches can be triggered manually or automatically, depending on their design and purpose.

For a normally closed switch, the default state is that the switch is closed, allowing electricity to pass through. Once triggered (usually by pressing a button or a mechanical action), the circuit opens, stopping the current flow. For a normally open switch, the default state is open, meaning the circuit is incomplete. When the switch is activated, it closes, allowing current to flow through the circuit.

The key point is that switches control the flow of electricity in a simple and reliable manner, often in response to user actions or automated triggers. This makes them ideal for a wide variety of applications, from everyday appliances to complex machinery.

How to Check a Normally Closed Switch?

To check if a normally closed switch is functioning properly, you can use a multimeter to test continuity. Here’s how:

1. Set the multimeter to continuity mode: This will help you determine whether or not the switch is closed (allowing current to pass).

2. Test the switch in its default state: With the switch not being operated (not pressed), place the multimeter probes across the terminals of the switch. If the multimeter beeps or shows continuity, this means the switch is functioning as a normally closed switch.

3. Test the switch when operated: Press or activate the switch. The multimeter should no longer show continuity, indicating that the switch has opened and interrupted the flow of electricity.

If the multimeter shows continuity in both states, then the switch may be faulty and should be replaced.

FAQs

1. Can a normally closed switch be used as a safety feature?

Yes, a normally closed switch is often used as a safety feature. For example, in a safety shutdown system, it ensures that the circuit remains closed (allowing power to flow) until a specific condition triggers the switch to open and stop the power.

2. What are the common applications of normally closed switches?

Normally closed switches are commonly used in alarm systems, safety circuits, and emergency stop mechanisms. They are ideal when you want the system to remain active unless specifically interrupted by the switch.

3. What is the advantage of using a normally closed switch?

The main advantage of using an NC switch is its ability to default to a closed state, ensuring continuity in the circuit. This is useful in systems where you want the circuit to be active under normal conditions and only disrupted when needed.

4. Can normally closed switches be used in high-voltage applications?

Yes, NC switches can be used in high-voltage applications, provided they are rated appropriately for the voltage and current involved. Make sure to choose a switch designed for the specific electrical characteristics of the system.

5. Are normally closed switches more reliable than normally open switches?

The reliability of a switch depends on the application. Both NC and NO switches are reliable when used correctly, but NC switches are typically more reliable in systems where continuity is required unless manually interrupted.

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What is UV Coated on Membrane Panels?

Posted on January 16, 2025 by Love Dome

What Is UV Coated Membrane Keys?

UV coated membrane panels are standard membrane keys with a protective layer of ultraviolet-cured coating. This coating is a thin, liquid polymer applied to the surface, which hardens when exposed to ultraviolet light. The process creates a durable, smooth finish that resists wear and tear.

Depending on the desired outcome, the coating can have a glossy or matte finish. Glossy coatings often give the keys a vibrant and shiny look, while matte finishes are preferred for a more subdued, professional appearance. The layer not only improves the aesthetic value but also serves as a protective shield against scratches, stains, and environmental factors like moisture and UV rays.

This coating is widely used in various industries, including electronics manufacturing, medical devices, and automotive controls, where membrane keys must endure frequent usage and harsh conditions.

What Does UV Coated Do?

Scratch Resistance: Membrane keys are prone to scratches, especially when used in high-traffic environments. UV coating minimizes these marks, ensuring the keys remain visually appealing over time.
Moisture Protection: Exposure to moisture can degrade membrane keys, especially in humid conditions. The UV layer acts as a barrier, preventing water or humidity from penetrating the surface.
Fading Prevention: UV rays can cause colors to fade over time, especially in outdoor settings. A UV-coated surface resists fading, maintaining the vibrancy of the keys.
Enhanced Appearance: Beyond protection, UV coating adds a refined look to the keys, making them appear polished and professional.
Improved Tactile Feel: The coating adds a smoother texture to the keys, enhancing user interaction.

Is UV Coated Good?

The simple answer is yes. UV-coated membrane keys offer significant advantages in terms of durability, aesthetics, and overall performance.

Prolonged Lifespan: The protective layer reduces wear and tear, meaning the keys stay functional for a longer time. This is especially beneficial in applications where the keys are used intensively.
Cost-Effective Solution: While the initial investment in UV coating might seem higher, the long-term savings outweigh the costs. Fewer replacements and repairs mean reduced expenses over time.
Adaptability: UV coating can be applied to various types of membrane keys, making it a versatile choice for different industries.
User Satisfaction: Enhanced tactile feel and appearance contribute to a better user experience, ensuring satisfaction for customers and end-users alike.
Environmental Protection: Modern UV coatings are designed to be eco-friendly, ensuring minimal environmental impact during the manufacturing process.

Does UV Coating Wear Off on Membrane Keys?

Like any protective layer, UV coating may wear off over time, especially under extreme conditions or constant use. However, the rate at which the coating degrades depends on factors such as:

Quality of the Coating: High-quality UV coatings last longer and provide better protection.
Frequency of Use: Keys used frequently will experience more wear compared to those used occasionally.
Environmental Factors: Exposure to harsh conditions, such as extreme temperatures or direct sunlight, can accelerate wear.

With proper care and maintenance, UV-coated keys can last for years without significant degradation. Regular cleaning with non-abrasive materials and avoiding harsh chemicals can further prolong the coating’s life.

How Can I Coat UV on Keycaps?

Applying UV coating to keycaps is a specialized process that requires precision and the right tools. Here’s a step-by-step guide:

1. Clean the Keycaps and Printing Silver Paste: Begin by thoroughly cleaning the surface of the keycaps to remove any dirt, grease, or contaminants. This ensures the coating adheres properly.

2. Apply the Coating: Use a spray or dipping method to evenly apply the UV coating. Ensure that the layer is thin and uniform to avoid uneven finishes.

3. Cure Under UV Light: Place the coated keycaps under a UV light source to harden the coating. This step is crucial as it solidifies the polymer, creating the durable layer.

4. Inspect the Finish: Once cured, inspect the keycaps for any imperfections. If needed, additional layers can be applied for added protection.

5. Polish (Optional): For a glossy finish, the keycaps can be polished after the coating has cured.

For professional results, it’s best to use industrial-grade equipment and materials. If you’re attempting this process at home, ensure you follow safety guidelines and use quality products. If you are looking for a reliable membrane keys manufacturer, please take us as your go-to choice.

FAQs

1. Can UV coating be applied to all types of keycaps?

Yes, UV coating is versatile and can be applied to most keycap materials. However, it’s important to use a coating compatible with the specific material for optimal results.

2. How long does UV coating last on membrane keys?

With proper care, UV coating can last several years. Its longevity depends on the quality of the coating and the conditions under which the keys are used.

3. Is UV coating environmentally friendly?

Many modern UV coatings are designed with eco-friendly formulations, ensuring minimal environmental impact during production and application.

4. Does UV coating affect key sensitivity?

No, UV coating does not interfere with the functionality or sensitivity of membrane keys. In fact, it can enhance the tactile experience.

5. Can I apply UV coating at home?

While possible, applying UV coating at home requires careful handling and the right tools. For best results, professional application is recommended.

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What is Triangular Dome? Triangle Metal Dome Specification

Posted on January 15, 2025 by Love Dome

What Is a Triangle Dome Called?

A triangular dome, commonly referred to as a triangle metal dome, is a switch component with a three-sided shape. Triangular metal dome is mainly used for thin-film switches, printed circuit boards and so on. When there is only a small space on the PCB, a smaller metal dome diameter, rebound & click feel are required, triangle series metal dome is the best choice.

Compared with other series metal domes, triangular dome can have the maximum force at the same diameter. The triangular metal dome is mostly used for special occasions, such as the need for strong press to open to avoid manual mis-operation. Generally, the size of triangle metal dome is range from 5-12mm, and the force is often between 150gf and 6,000gf. The yare especially suitable for industrial control, high pressure/high temperature and other special instrument panels or control panels.

Types of Triangular Metal Dome

This kind of triangular metal dome can be made with two feet/legs, also known as positioning leg or fixed leg. The leg width is generally 0.8mm, and there are also 0.7~1.0mm specifications. The leg length is divided into three types: short leg: 0.8mm; Middle leg: 1.5mm and long leg with 3.0mm more. With these two legs, the metal dome can be easily positioned on the PCB board, eliminating the process of welding or surface mounting.

Triangular Dome Without Legs

This type features a flat design without any extended legs, making it ideal for compact layouts. Its low-profile nature ensures seamless integration into devices where height constraints are a priority.

Triangular Dome with 0.8mm Legs

Designed with short 0.8mm legs, this dome provides stable contact and moderate tactile feedback. It is suitable for mid-sized devices that need consistent performance while keeping the overall height low.

Triangular Dome with 1.5mm Legs

This type strikes a perfect balance between compactness and tactile response. The 1.5mm legs enhance contact reliability, making it a popular choice for devices requiring precise actuation.

Triangular Dome with 3.0mm Legs

With extended 3.0mm legs, this dome offers enhanced stability and a more pronounced tactile response. It is commonly used in applications requiring durability and strong tactile feedback, such as industrial equipment.

Advantages of Triangular Dome

Their shape fits easily into tight spaces.
The design delivers a clear tactile response with every press.
Made from high-grade stainless steel, they withstand extensive use.
You can tailor their force, size, and features to your needs.
The triangular shape ensures consistent and stable performance.

Specifications of Triangular Dome

Contact Configuration?SPST, Normally Open
Contact Bounce (on): <.3ms
Contact Bounce (off): <6ms
Operating Temperature: -55 C to 125 C
Storage Temperature?-55 C to 125 C
Humidity?0-97% (no condensation)
Contact Resistance?<100 ohms
With gold or silver plating: <0.1 ohm
Voltage/Current Maximum?12 ma @ 24 volts DC, RL
Breakdown Voltage?Over 200 volts
For more specifications about triangular dome, please download here.

Triangular Dome Applications

Consumer Electronics – remote controls, calculators, keyboards, and gaming controllers.
Medical Devices – diagnostic tools, patient monitoring systems, and portable medical equipment.
Industrial Equipment – control panels, automation systems, and machinery.
Telecommunications – mobile phones, walkie-talkies, and other communication devices.
Automotive Industry – dashboard controls, entertainment systems, and steering-mounted buttons.
Aerospace and Defense – navigation systems, control panels, and communication devices due to their reliability and robustness.
Smart Home Devices – smart thermostats to door locks and home automation controllers, triangular domes.
Point-of-Sale Systems – POS terminals, ATMs, and other transaction systems.

Best Technology – Your Trusted Triangular Dome Manufacturer

When it comes to triangular domes, Best Technology stands out as a trusted and innovative manufacturer. With 19 years of experience, we specialize in producing high-quality metal domes that meet diverse industry needs.

In our triangular dome factory, you can see the full series of manufacturing machines, testers. Our advanced manufacturing processes ensure precision and consistency, while our team of experts works closely with clients to deliver tailored solutions. Whether you need standard designs or custom configurations, Best Technology is your reliable partner.

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Force Displacement Curve of Tactile Dome Switches

Posted on January 14, 2025 by Love Dome

What is a Force-Displacement Curve?

What is a Force-Displacement Curve? A force-displacement curve is a graphical representation that shows the relationship between the applied force and the resulting movement or displacement of a material or object. When it comes to tactile dome switches, this curve plays a critical role in understanding the physical behavior of the switch when it is pressed. It allows manufacturers to gauge how much force is required to activate the switch, how the switch responds to the applied force, and how the switch behaves after it is released.

The graph typically features key points, including the actuation force, which represents the force required to activate the switch, and the return force, which indicates how much force is needed to reset the switch after use. These data points are important because they help in fine-tuning the switch’s tactile response.

How to Read a Switch Force Graph?

Reading a switch force graph is a straightforward process once you understand its key components. The force graph starts at the origin point (0,0), where no force is applied and no displacement occurs. As you begin to apply force to the tactile dome switch, the graph rises gradually. This section of the curve represents the initial movement of the dome as it deforms under the applied force. The slope of the curve here can tell you how easy it is to press the switch and how much resistance the switch offers during this phase.

Force Displacement Curve of Tactile Dome Switches

At some point, the curve reaches its peak, which represents the actuation force — the point at which the switch is activated and the circuit underneath is closed. After the peak, the curve drops sharply, representing the tactile feedback or “click” that occurs when the switch is fully engaged.

As the force is released, the graph moves back down, showing the return force. This portion of the graph reflects how the dome switch returns to its original shape and resets the circuit. The return force is usually slightly less than the actuation force, indicating that it requires less effort to release the switch than to press it.

How Does a Dome Switch Work?

A tactile dome switch operates using a simple but effective mechanism that involves a flexible, dome-shaped component, this is we called metal dome or snap dome. The dome is typically made from metal materials like stainless steel, often used SUS304 or SUS301 stainless steel. When a user applies force to the dome, it deforms, compressing the dome and pushing it downwards. This movement closes the electrical circuit underneath, sending a signal to the device or system that the switch has been activated.

Once the force is released, the dome returns to its original shape, opening the circuit again. This action creates the “click” sound and tactile response that users feel when the switch is pressed. The material of the dome and its shape are carefully designed to ensure that the switch provides a satisfying tactile response, signaling to the user that the switch has been engaged successfully.

Dome switches are popular in various applications because they are compact, reliable, and cost-effective. They are commonly used in electronics, automotive controls, and even household appliances. The simplicity of the dome switch design makes it ideal for applications where space is limited or where users need a clear and tactile indication of activation.

How to Test a Force-Displacement Curve?

Testing a force-displacement curve requires specialized equipment to apply controlled force to the tactile dome switch and measure the resulting displacement. The most commonly used equipment for this purpose is a force gauge or a universal testing machine (UTM). These machines are capable of applying a steady and controlled amount of force to the switch while recording the data on a graph.

During the curve testing, placing dome switch securely in the testing machine to prevent any unwanted movement. The machine then applies force to the dome at a controlled rate, pressing it down while simultaneously recording the force and displacement at various points. The resulting data is plotted on a graph, showing how the switch behaves under different levels of pressure.

During testing, key points such as the actuation force, peak force, and return force are analyzed to determine the performance of the switch. Once the force-displacement curve is generated, repeated tests are often performed to assess the switch’s consistency and reliability.

How to Convert a Force-Displacement Curve to a Stress-Strain Curve?

Converting a force-displacement curve to a stress-strain curve is a process that involves calculating two key parameters: stress and strain. While the force-displacement curve gives us valuable data about how force is applied to the switch and how it displaces, a stress-strain curve provides insight into how the material behaves internally under that force. Here’s how you can convert the data from one to the other:

1. Collect Data from Force-Displacement Curve:

Start by gathering data points from the force-displacement curve that show the force applied to the tactile dome switch and the resulting displacement (or movement) of the dome. Please noted: force (in Newtons, N) and displacement (in millimeters, mm).

2. Determine the Cross-sectional Area of the Dome:

To convert force into stress, you need to know the cross-sectional area of the dome material. This is typically determined by the shape and dimensions of the dome.

For example, if the dome is circular, you can calculate the cross-sectional area using the formula:

Where r is the radius of the dome’s cross-sectional area.

If the dome is flat or has a different shape, adjust the area calculation accordingly.

3. Calculate Stress:

Stress is the force applied per unit area of the material. Once you have the force (F) and the cross-sectional area (A), you can calculate stress (?) using the formula:

where: ? is stress (in Pascals, Pa), F is the force (in Newtons, N), A is the cross-sectional area (in square meters, m²).

4. Calculate Strain:

Strain is the deformation or displacement of the material relative to its original length. For this, you need the original length (L) of the dome before any force is applied. The strain (?) is calculated using the formula:

where: ? is strain (dimensionless), ?L is the displacement (change in length) (in meters, m), L is the original length of the dome (in meters, m).

Plot the Stress-Strain Curve:
Once you have calculated stress and strain for each data point from the force-displacement curve, plot these points on a new graph.
On the x-axis, plot strain, and on the y-axis, plot stress.
As you plot the points, you will see the material’s behavior under increasing force and deformation, which will help in evaluating the material’s elastic and plastic regions.

FAQs

1. What materials are used in tactile dome switches?

Tactile dome switches are typically made from stainless steel, which offers durability and flexibility.

2. Can force-displacement curves predict switch lifespan?

Yes. By testing the switch’s performance under repeated force cycles, manufacturers can estimate the switch’s lifespan and identify any potential failure points.

3. What factors affect a dome’s actuation force?

The thickness of the material, the shape of the dome, and the overall design of the switch all influence the actuation force.

4. Are all force-displacement curves the same?

No. Each tactile dome switch is designed for specific applications and has its own unique force-displacement curve.

5. Why is tactile feedback important?

Tactile feedback ensures that users can feel when a switch has been activated, improving the user experience and preventing errors.

Posted in Business, FAQ, Membrane Switches, metal dome array, metal dome related, Metal Domes | Tagged force displacement curve, Force Displacement Curve of Tactile Dome Switches | Comments Off

SUS304 vs SUS301 Stainless Steel Material in Snap Dome Manufacturing

Posted on January 10, 2025 by Love Dome

When it comes to snap dome manufacturing, two types of stainless steel stand out—SUS304 and SUS301. These materials are always used as the base material of metal domes. They offer distinct advantages based on their unique properties and chemical compositions. In this article, we will explore the differences between SUS304 and SUS301, helping you understand which is the best fit for your snap dome applications.

What is SUS304 Stainless Steel?

304 stainless steel is a common material in stainless steel, with a density of 7.93 g/cm³; The industry is also known as 18/8 stainless steel, which means containing more than 18% chromium and more than 8% nickel; High temperature resistance 800?, with good processing performance, high toughness characteristics, widely used in industrial and furniture decoration industry and food and medical industry. Among the common marking methods on the market are 06Cr19Ni10 and SUS304, of which 06Cr19Ni10 generally means national standard production, 304 generally means ASTM standard production, and SUS304 means daily standard production.

SUS304 vs SUS301 Stainless Steel Material in Snap Dome Manufacturing

The most important elements in 304 are Ni and Cr, but they are not limited to these two elements. Specific requirements are specified by product standards. The common judgment situation in the industry believes that as long as the Ni content is greater than 8% and the Cr content is greater than 18%, it can be considered 304 stainless steel.

SUS304 Chemical Composition

The chemical composition of SUS304 is as follows:

Chromium (Cr): 18%
Nickel (Ni): 8%
Carbon (C): 0.08% max
Manganese (Mn): 2% max
Silicon (Si): 0.75% max
Phosphorus (P): 0.045% max
Sulfur (S): 0.03% max
Iron (Fe): Balance

SUS304 Mechanical Properties

Tensile Strength: 520 – 750 MPa
Yield Strength: 215 MPa (minimum)
Elongation: 40% (minimum)
Hardness (Rockwell B): 70 HRB
Modulus of Elasticity: 193 GPa
Poisson’s Ratio: 0.29
Fatigue Strength: 220 MPa (approx.)
Thermal Expansion: 16.0 × 10?? /°C
Density: 8.0 g/cm³
Poisson’s Ratio: 0.27
Melting Point: 1,140°C – 1,145°C (1,243K – 1,418K)

What Are the Weaknesses of SUS304 Stainless Steel?

While SUS304 is an excellent choice for many applications, it does have some limitations:

Not as strong as other alloys: SUS304 is not as strong as stainless steel alloys like SUS301, which may be necessary for more demanding snap dome applications.
Susceptible to chloride-induced stress corrosion cracking: In extreme environments, particularly those involving chlorine or chlorides, SUS304 can experience stress corrosion cracking.
Lower wear resistance: SUS304 has lower wear resistance compared to certain other grades of stainless steel, which can be a drawback for snap domes exposed to constant friction. Despite these weaknesses, SUS304 remains a top choice for snap dome manufacturing due to its balanced mix of properties.

What is the Life Expectancy of 304 Stainless Steel?

The life expectancy of SUS304 stainless steel depends on several factors, including environmental conditions, the specific application, and how it’s maintained. Generally, in moderate environments, SUS304 can last for decades. Its corrosion resistance helps it withstand oxidation and environmental damage over time. However, the life span can be reduced in harsh, highly corrosive environments or if exposed to extreme physical stress.

For snap dome applications, if maintained well and used in appropriate conditions, SUS304 can perform reliably for many years.

What is SUS301 Stainless Steel?

SUS301 stainless steel is an austenitic stainless steel with high strength and good ductility, mainly used in areas requiring high strength and corrosion resistance. SUS301 and 304 contain low Ni,Cr and high N components, and can achieve high strength through cold working. Compared with ordinary steel, SUS301 has excellent high temperature strength, fatigue strength and corrosion resistance, and can achieve light weight when used in trams.

The material contains higher carbon content than SUS304, contributing to its greater strength. However, this also means that it may be slightly less resistant to corrosion, though it still performs well in many applications.

SUS301 Chemical Composition

SUS301 stainless steel contains:

Chromium (Cr): 17-19%
Nickel (Ni): 6-8%
Carbon (C): 0.15% max
Manganese (Mn): 2% max
Silicon (Si): 1% max
Phosphorus (P): 0.045% max
Sulfur (S): 0.03% max
Iron (Fe): Balance

The higher carbon content contributes to the material’s enhanced strength and makes it more suitable for applications where greater mechanical performance is required.

SUS301 Mechanical Properties

Tensile Strength: 1,000 MPa (minimum)
Yield Strength: 350 – 650 MPa (depending on heat treatment)
Elongation: 40% (minimum)
Hardness (Rockwell B): 90 HRB (high-carbon variants can be harder)
Modulus of Elasticity: 193 GPa
Poisson’s Ratio: 0.30
Fatigue Strength: 320 MPa (approx.)
Thermal Expansion: 16.5 × 10?? /°C
Density: 7.9 g/cm³
Poisson’s Ratio: 0.30
Melting Point: 1,400°C – 1,450°C (1,673K – 1,723K)

SUS301 Equivalent Materials

SUS301 stainless steel is widely recognized for its excellent mechanical strength, ductility, and corrosion resistance. Equivalent materials to SUS301 exist across various international standards. These materials may have similar chemical compositions, mechanical properties, and applications.

Here are some equivalents to SUS301 stainless steel in different standards:

Standard	Equivalent Material Name	Notes
AISI (USA)	AISI 301	The direct equivalent to SUS301 in the American Iron and Steel Institute (AISI) system.
UNS (USA)	UNS S30100	Common designation under the Unified Numbering System in the USA.
EN (Europe)	X12CrNi17-7 (1.4310)	European equivalent with comparable mechanical properties and applications.
DIN (Germany)	1.4310	Widely used in Europe, particularly for components requiring high strength.
BS (UK)	301S21	British Standard equivalent to SUS301 with slight variations in properties.
JIS (Japan)	SUS301	Original Japanese standard designation for this stainless steel grade.
ISO (Global)	301	Recognized by ISO as part of the international standards for stainless steels.
AFNOR (France)	Z12CN17-07	French designation for an equivalent stainless steel material.
GB (China)	12Cr17Ni7	Chinese equivalent based on national standards, often used in industrial applications.

Stainless Steel 301 vs 304 vs 316

Property	Stainless Steel 301	Stainless Steel 304	Stainless Steel 316
Chemical Composition	17-19% Chromium, 6-8% Nickel, 0.15% Carbon	18-20% Chromium, 8-10.5% Nickel, 0.08% Carbon	16-18% Chromium, 10-14% Nickel, 2-3% Molybdenum
Tensile Strength	High (up to 1,000 MPa)	Moderate (up to 520 MPa)	Moderate (up to 620 MPa)
Corrosion Resistance	Moderate, less resistant than 304 and 316	Good, especially in mild environments	Excellent, especially in saltwater or marine environments
Magnetism	Slightly magnetic when cold worked	Mostly non-magnetic	Mostly non-magnetic
Ductility	Good, more rigid compared to 304	Excellent	Good
Formability	Good, though harder to form than 304	Excellent for forming complex shapes	Good, but requires higher costs and equipment
Applications	Spring-like components, automotive, appliances	Food processing, kitchen equipment, medical equipment	Marine environments, chemical processing, medical implants
Heat Resistance	Good for temperatures up to 870°C	Good for temperatures up to 870°C	Excellent for temperatures up to 925°C

At Best Technology, we specialize in providing high-quality snap dome components, manufactured with the best materials, including SUS304 and SUS301, tailored to your specific needs. Whether you require durability, strength, or corrosion resistance, we can help you select the perfect material for your application.

Posted in FAQ, Membrane Switches, metal dome related, Metal Domes | Tagged SUS301, SUS301 stainless steel, SUS304, SUS304 stainless steel | Comments Off