FSMRA1JHL04 is a miniature momentary pushbutton switch designed for low-power electronic control applications. The switch features a PBT actuator button with a black nylon 6/6 case and steel frame with tin-over-nickel plating, combined with copper alloy contacts plated with silver for reliable electrical performance. Electrical specifications include a maximum contact rating of 50 milliamps at 24V DC, initial contact resistance of 100 milliohms maximum, and an insulation resistance of 100 megohms at 100 VDC minimum, with a dielectric strength of 500 VAC for 1 minute. The switch operates reliably over a temperature range of -35°C to +85°C and is rated for 100,000 cycles of operation, making it suitable for consumer electronics, industrial control panels, and portable devices requiring compact, durable switching solutions.