The C&K Components Y31B41117FPLFS is a sealed tactile switch within the KSC series, engineered for robust performance in demanding environments. This momentary action switch offers a positive tactile feel and is rated IP67, providing excellent protection against dust and water ingress. It features J or G terminations suitable for surface mount technology (SMT) and is available in tape and reel packaging for automated assembly. Typical applications include automotive systems, cellular phones, industrial electronics, and network infrastructure. The switch's mechanical design ensures durability with operating forces ranging from 1.2N to 5.5N and a lifespan of up to 5,000,000 operations. It is suitable for infrared reflow soldering and cleaning processes, ensuring compatibility with standard manufacturing practices. A detect switch version (KSC4D1J and KSC4D1G) is also available.