Round metal dome: are placed on a membrane switch by means of pressure sensitive adhesive tape. In their relaxed state they rest on the outer rim of the primary pathway. When they are pushed, the centers of the domes collapse past the flat plane and make contact with the secondary pathway, thereby closing the circuit.

We not only pack metal dome in normal bulk, but also can put each dome on a array and with dhesive tape on its top, so that you can just peel off each piece and put it on key location of Keyboard/FPC/PCB.


The round metal domes have one, three, four, five and no dimple. They also can be plated of Ni, Au, Ag and no plating.

We also have the triangle, four legs and oblong shapes.