E105MD1V3BE is a sealed miniature toggle switch designed for applications requiring momentary switching action in both positions with an off-center position. This SPDT switch features a momentary-off-momentary (MOM.-OFF-MOM.) function with connected terminals at positions 2-3 and 2-1, providing reliable switching for telecommunications, instrumentation, and medical equipment. The switch is sealed against solder and cleaning process contaminants with an epoxy seal, UL 94V-0 nylon case and bushing, and offers contact ratings of 7.5 amps at 125V AC or 28V DC for E1XX models. With a contact resistance below 10 mO typical and insulation resistance of 10? O minimum, the switch delivers consistent electrical performance. The M actuator (0.300" high, chrome finish) and D1 bushing (0.250" high, unthreaded) provide standard configuration, while PC thru-hole termination with 0.073" diameter mounting holes ensures straightforward PCB integration.