Four-leg metal dome is also called cross-shaped metal dome. At present, the life of the cross-shaped domes produced by Best Technology can reach 500,000 to 1,000,000 times. It is far superior to round dome in terms of lifespan and feel. Cross-shaped metal dome has been widely used in various high-end electronic product accessories such as single-sided and double-sided circuit boards, flexible circuits, membrane switches, and medical equipment.
The working principle of the four-legged metal dome is that the dome on the top of the dome is the main interface, and the four legs extending outward are the support. When the main interface is under the pressure of the operator, the dome at the center of the main interface touches the PAD on the line, and its After that, it forms a loop with the four feet, resulting in conduction. According to the needs of different levels and levels of the market, Best Technology also has the ability to design and develop various surface treatments (such as nickel plating, gold plating) and special requirements for this type of dome.
Four-legged metal dome is divided into metal dome with holes and metal dome without holes, so what is the difference between the two, and what impact will it bring during use?
The four-corner metal dome with a center hole is mainly used on switches that need to be illuminated from the back or the bottom. The light can shine through the hole in the center of the dome, so that the LED can be placed on the lower front of the circuit board instead of on the back of the PCB. The four-legged metal dome with a center hole can be installed on single-sided or double-sided PCB, flexible circuit and membrane switch panel, and the negative and positive poles can be designed under the dome on the same side of the circuit.
The four-leg dome without a central hole is often used in digital electronic equipment and can be used as a case, mainly in the field of keyboards. Like perforated keyboards, it feels better than round and oval domes, and has a longer life cycle than triangular domes. The four-legged metal dome without holes is cheaper than the four-legged metal dome with holes, but the light projection and air permeability are not as good as the four-legged metal dome with holes.
Best Technology can adjust the stroke force, rebound/return force, feel, stroke and height according to customer requirements. Provide customers with the most suitable products and the most satisfactory service; no matter how big or how much you need, we will do our best to produce. If you have metal dome needs, contact us now to learn more!
