FSM8JSMA is a surface-mount tactile switch from the FSMJSMA Series, featuring a 6 mm × 6 mm square footprint designed for compact PCB integration. The switch is constructed with copper alloy silver-plated contacts, a PPS case and actuator button, and a steel tin-plated cover, providing reliable electrical performance and durability. It operates over a temperature range of -20°C to +85°C with a contact rating of 50 mA at 12 VDC, initial contact resistance of 100 milliohms maximum, and dielectric strength of 500 VAC for 1 minute. The actuator travel is 0.254 mm (0.010 inch) with a life expectancy of up to 100,000 cycles, making it suitable for consumer electronics, industrial control panels, and portable devices requiring compact, reliable switching solutions.