Y33A41155FPLFT is a low-profile tactile switch from the KSF series featuring SPST normally-open contact arrangement with double overmolding on terminals and IP60 sealing. The switch operates with an actuation force range of 1.0 to 2.0 N and provides 100,000 operations over its lifetime, with contact resistance of 100 mO and a bounce time of 1 ms. It operates reliably across a temperature range of -40°C to 85°C (silver contacts) or -40°C to 125°C (gold contacts), with dielectric strength rated at 300 Vrms and minimum current handling of 1 mA. This switch is ideal for low-profile keyboards, instrumentation, industrial control, medical, and military applications where compact design and reliable tactile feedback are essential.