The 7201MD9AQE is a miniature double-pole (DP) on-none-on toggle switch from the C&K 7000 Series, designed for compact switching applications requiring reliable electrical performance. It features an epoxy terminal seal with right-angle PC thru-hole termination (A configuration), copper alloy contacts with silver plating, and brass nickel-plated hardware including nut and locking ring. The switch operates over a temperature range of -30°C to 85°C with contact resistance below 10 mO typical at 2-4 V DC and 100 mA, 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 ideal for industrial control panels, instrumentation, and consumer electronics requiring durable, miniature switching solutions.