FSM2JH is a mechanical tactile pushbutton switch designed for through-hole PCB mounting with a momentary on-off operating function. The switch features a 50mA contact rating, silver-plated copper alloy contacts, and a round black polyacetal resin actuator with an extended profile and 0.70 mm actuator length. It delivers tactile feedback with an actuator force of 160 g (5.648 oz) and a total switch height of 4.30 mm, housed in a polyamide case with process-sealed construction. The switch operates at high temperature ratings and is EU RoHS/ELV compliant, making it suitable for consumer electronics, industrial control panels, and general-purpose switching applications requiring reliable tactile feedback and compact form factor.