The TS04-66-55-BK-100-SMT is a surface-mount tactile switch designed for momentary user input. It features a 100 gf operating force, a typical actuator travel of 0.25 mm, and a 5.5 mm actuator height. The switch is rated for up to 12 Vdc and 50 mA, with a maximum contact resistance of 100 mΩ. Built for durability, it has an operational life of 100,000 cycles and an operating temperature range of -30°C to 80°C. This component is ideal for applications in consumer electronics, industrial controls, and other requiring a reliable human-machine interface.