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Metal Dome is made by special stainless steel,which is an important part of the switch. Installed on the membrane switch by the pressing of metal dome when the PCB board contact with the formation of shrapnel center loop then current through.

The metal domes are provided with continuity, good feeling and so on. Many different shapes and actuation forces of metal domes are available in order to fit your specific application. They can be used for contact or tactile-element only. Full product range with various choices in shapes from round, oblong, triangle to four leg.

About to them,round metal dome and oblong metal dome are widely used in mobile phones, U disk, card reader, MP3 / 4 and membrane switch;

With the highest strength of the triangle metal dome, it has the largest elasticity under the same efforts in diameter, especially used for industrial control, high pressure / high temperature, and other special instrument panel or control panel.

 Because of the four leg metal dome structural characteristics, they have very good feeling, high travel and long life (> 1 million times), the four leg metal dome mainly used for membrane switch, control panel, it is also known as membrane switch dome, extensive used for single-sided, multi-layer rigid boards (PCB), flexible circuit board (FPC), controllers and so on.