FSMIJ61AG04 is an illuminated tactile switch from the Alcoswitch FSMIJ series designed for user interface applications requiring visual feedback. This through-hole mount switch features a 6x6mm footprint with a rectangular actuator style and an operating force of 100gf. The switch incorporates a yellow-green LED for illumination and uses brass as the contact base material with silver plating for reliable electrical connections. It is EU RoHS and ELV compliant, making it suitable for environmentally conscious designs. Common applications include consumer electronics, industrial control panels, and other devices where tactile feedback with visual indication is required.