Small size touch sensitive push button electrical switch having dome shaped push button pressing switch contact/printed circuit board held with outer cover rim sealing dome section/contact.

摘要

The push button electric switch has a printed circuit board (20) with conductor tracks (90,92), a switching section (18) a push button section (16) and an upper covering section (14) which is fixed to the circuit board. The push button section has a side skirt (58) surrounding the switch unit which has an edge (62) clamped on the printed circuit board by the cap on an outer rim (38) section forming a sealed cavity.