The 100SP3T1B1M1Q is a miniature toggle switch featuring a single-pole double-throw (SPDT) switching function with three positions (ON-OFF-ON). It incorporates a T1 actuator, B1 bushing for panel mounting, M1 solder lug termination, and silver-plated (Q) contacts sealed with epoxy at the base of the terminal. The switch delivers a contact resistance of 10 mO maximum at 2-4 VDC with 100 mA current rating, an insulation resistance of 1,000 MO minimum, and dielectric strength of 1,000 V RMS at sea level. With a life expectancy of 40,000 make-and-break cycles and an operating temperature range of -30°C to +85°C, this switch is well-suited for telecommunications, instrumentation, networking, and medical equipment where reliable miniature switching is required.