The KSC441JST2LFS is a sealed tactile switch for surface mount technology applications, featuring a 6.2 x 6.2 mm footprint with a 5.2 mm soft actuator height and IP67 sealing rating. This switch provides momentary action with a single make contact (SPST, N.O.) configuration and an operating force of 4 ± 1 N, with a travel distance of 0.75 ± 0.25 mm and an operating life of 300,000 cycles. The device incorporates J bend and Gullwing type SMT terminals with lead-free compatible silver plating, making it suitable for automated assembly processes. The KSC441JST2LFS is ideal for industrial electronics, consumer products, and transportation applications where durability against vibration, shock, and harsh environmental conditions is required.