PTS840GKSMTRLFS is a microminiature SMT side-actuated tactile switch from the PTS 840 Series designed for momentary action applications in compact electronic devices. This switch features a 220 gf operating force with gullwing (G) SMT leads, a compact 3.5 x 3.55 mm footprint, and 0.2 mm travel distance, delivering reliable performance across an operating temperature range of -40°C to +85°C. The switch is rated for 100,000 cycles of life, with a maximum voltage of 12 VDC, maximum current of 50 mA, contact resistance of =500 mO, and bounce time of =10 ms, ensuring stable electrical performance. Ideal for nomad devices, remote controls, personal health diagnostics, and consumer electronics where space constraints and reliable tactile feedback are essential.