Tact Switch is a standard electronic part, the internal structure is in the form of "shrapnel", and the service life can reach more than one million times, or even ten million. The touch is better.
The 04 series is a small 6.8 x 3.7 form factor in SMT version, ideal for general usage applications. It also included ground pin options on 2.5 mm height version.
About tact switch, preservation under high temperature and high high humidity or corrosive gas should be avoided Especially . When you need to preserve for a long period ,do not open the carton.