The KXT311LHS is an ultra-low profile top-actuated tactile switch from the KXT3 Series, designed for space-constrained applications requiring compact switching solutions. It features a momentary action SPST (single-pole, single-throw) contact arrangement with a travel distance of 0.13 mm ± 0.05 mm and an operating force of 100 ± 50 gf, delivering 300,000 cycles of reliable operation. The switch operates at a maximum voltage of 15 VDC with a maximum current of 20 mA, contact resistance of = 500 mO, and bounce time of = 10 ms, ensuring stable electrical performance across a wide temperature range of -40°C to 85°C. With its smallest footprint of 3.0 x 2.0 mm and 0.6 mm thickness, the KXT311LHS is ideal for wearable electronics, in-ear headphones, mobile phones, and hearing aids where miniaturization and durability are critical requirements.