FSM10JH is a tactile pushbutton switch from the FSM Series designed for through-hole mounting with a 6 x 6 mm footprint. It features a high-temperature actuator option (H designation) with an operating temperature range of -40°C to +85°C and storage temperature capability from -40°C to +85°C. The switch delivers a contact rating of 50 mA at 12 VDC, with an initial contact resistance of 100 milliohms maximum and insulation resistance of 100 megohms minimum at 100 VDC. With an actuation force of 160±50 grams, 0.10 inch (0.254 mm) actuator travel, and a dielectric strength of 500 VAC for 1 minute, this switch is rated for up to 100,000 cycles. The device is constructed with copper alloy silver-plated terminals and is ideal for consumer electronics, industrial control panels, and embedded systems requiring reliable momentary switching.