With an extended life to one million actuations, the KSC741 and KSC721 tactile switches from C&K Components are intended for high reliability applications. Current rating for the momentary action, SPST, normally open devices ranges from 1 mA to 50 mA for silver plating and 1 mA to 10 mA for the gold plating. Contact resistance is less than 100 mO. Maximum power rating for the silver and gold plating is 1VA and 0.2VA, respectively, with a maximum voltage of 32 VDC. Operating temperature ranges from -40°C to 125°C. From $.15 in minimum order of 10,000 pieces.