C&K has expanded its KSC Series sealed SMT tact switches with the addition of four ultra long life switches Featuring momentary action functionality, single-pole, single-throw (SPST) contact arrangement, the IP67-rated KSC Series ultra long life switches are designed to withstand intensive use in various industrial environments, and are available with a wide variety of actuators designed to satisfy specific application requirements with regard to dimensions, haptics, tactile resistance, and durability.