The E112SD1V3QE is a sealed momentary pushbutton switch featuring SPDT (Single Pole Double Throw) functionality with gold-plated coin silver contacts and epoxy terminal seal. It is designed with a 0.222 inch high plunger, unthreaded bushing, and vertical right-angle termination suitable for PC board mounting. The switch delivers a contact rating of 4 amps at 125 V AC or 28 V DC, with an electrical life of 40,000 make-and-break cycles at full load and contact resistance below 20 mO typical. Operating over a temperature range of -30°C to 75°C with an insulation resistance of 10? O minimum and dielectric strength of 1000 Vrms, this switch is process sealed to withstand machine soldering and pressure wash cleaning. It is ideal for instrumentation, telecommunications, networking equipment, and computer peripherals where reliable sealed switching performance is required.