The EP11SD1AQE is a sealed tiny pushbutton switch from C&K Components designed for telecommunications, networking, computing, and instrumentation applications. This SPST (Single Pole Single Throw) off-momentary switch features a PC thru-hole termination with epoxy seal, providing protection against solder and cleaning processes with an IP57 degree of protection. The switch is rated for 0.4 VA maximum at 20 V AC or DC with B contact material (gold plated copper alloy), and delivers 60,000 make-and-break cycles at full load with contact resistance below 20 mO typical. Operating across a temperature range of -30°C to +85°C with 1000 Vrms dielectric strength and 10? O minimum insulation resistance, the EP11SD1AQE offers reliable performance in sealed applications requiring robust switching capability and environmental protection.