The RV511K10_-HE from Stackpole Electronics is a Varistor with AC Voltage Rating 320 V, DC Voltage Rating 415 V, Clamping Voltage 845 V, Capacitance 220 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for RV511K10_-HE can be seen below.