Y31B11117FPLFS is a sealed tactile switch from the KSC Series designed for surface mount technology (SMT) applications. The switch features momentary action with a single make contact (SPST, N.O.) configuration and provides a positive tactile feeling with J bend and Gullwing type terminations suitable for automated assembly. It offers an IP67 sealing rating for protection against dust and moisture ingress, making it suitable for demanding environments. The device is commonly used in automotive, cellular phones, industrial electronics, and network infrastructure applications where reliable tactile feedback and environmental protection are required.