FSM4JAH is a tactile pushbutton switch from the FSM series designed for through-hole PCB mounting applications. It features a single pole single throw (SPST) configuration with an Off [On] momentary operating function and a contact rating of 50mA. The switch has a vertical mount angle with an extended red PBT actuator measuring 1.40 mm in length and requires an actuator force of 260 g. The nylon case construction with silver-plated contacts and process-sealed housing makes it suitable for various electronic control applications requiring reliable tactile feedback.