The TE Connectivity / Alcoswitch Brand part FSM2JSMATR is a tactile switch that is commonly used in electronic devices and equipment. It features a SPST (Single-Pole Single-Throw) configuration, meaning it has a single circuit and can either be in an OFF or ON state. The switch has a round button design and is mounted onto a printed circuit board using the gull wing style. It has a low current rating of 0.05A and operates on a 12VDC voltage. The switch requires a minimum force of 1.57N to activate and is surface mount compatible. It is supplied in tape and reel packaging for easy handling during production.