U11J21ZQE22 is a single-pole, double-throw (SPDT) miniature rocker switch from the 7000 Series, designed for applications requiring reliable switching with compact form factor. The switch features an epoxy terminal seal compatible with bottom wash cleaning, RoHS compliance, and a black rocker actuator (J1 option code) with right-angle PC through-hole termination. Key technical specifications include contact resistance below 10 mO typical at 2-4 V DC with 100 mA, insulation resistance of 10? O minimum, and dielectric strength of 1000 Vrms minimum at sea level. The switch operates reliably over a temperature range of -30°C to +85°C with 100,000 make-and-break cycles at full load for this model series. Common applications include telecommunications, instrumentation, and medical equipment where miniaturized, dependable switching is essential.