The 7209P3YZQ is a miniature toggle switch from the C&K 7000 Series designed for precision switching in compact applications. It features a single-pole double-throw (SPDT) configuration with a 1/4-40 UNS-2A threaded bushing and epoxy seal for environmental protection. The switch operates over a temperature range of -30°C to +85°C and provides contact resistance below 10 mO typical at 2-4 V DC with 100 mA, along with an insulation resistance of 10? O minimum and dielectric strength of 1000 Vrms minimum at sea level. With an electrical life of 40,000 make-and-break cycles at full load and solderability per MIL-STD-202G method 208H, this switch is well-suited for industrial control panels, instrumentation, and consumer electronics requiring reliable, compact switching solutions.