KMT021NGJLHS is a nano-miniature SMT top-actuated tactile switch from the KMTO Series, designed for compact electronic applications requiring reliable momentary switching. The switch features a 3.0 x 2.06 mm footprint with a total height of 0.65 mm, delivering the smallest thickness with an integrated actuator and an operating force of 1.6 N (160 grams) with =30% tactile feeling. It provides 300,000 operating life cycles, IP68 rating, and ultra-low current capabilities, with electrical specifications including a maximum voltage of 32 VDC, maximum current of 50 mA, contact resistance of =150 mO, and bounce time of =6 ms. The switch operates reliably across -40°C to 85°C and is ideal for mobile phones, hearing aids, automotive keyless entry systems, smoke detectors, and home automation remote controls where space constraints and durability are critical.