ET03MD1CBE is a sealed subminiature toggle switch from C&K's ET Series, featuring a single-pole (SP) On-Off-On switching function. This switch incorporates a 0.240" high M actuator, D1 unthreaded bushing (0.177" high), C PC thru-hole termination, and B gold contact material for low-level/dry circuit applications. Key electrical specifications include a contact rating of 0.4 VA max at 20 V AC or DC max, contact resistance below 20 mO typical, insulation resistance of 10? O minimum, and dielectric strength of 1000 Vrms minimum. The switch is sealed against solder and cleaning process contaminants with IP57 protection rating and operates over a temperature range of -30°C to 85°C. Ideal for hand-held telecommunications, instrumentation, and medical equipment applications where compact size and reliable switching performance are required.