The C&K PTS645 series 6 mm tactile switches are designed for applications requiring a compact and reliable momentary action switch. These switches feature a variety of actuator lengths and actuation forces to meet diverse design needs. They are RoHS compliant and available in both thru-hole and surface mount (SMT) options. Common applications include consumer electronics, instrumentation, computer products, and industrial control panels. The switches offer a robust solution with a life expectancy of 50,000 operations and are designed for easy integration into various PCB layouts.