The RV331K10_-HE from Stackpole Electronics is a Varistor with AC Voltage Rating 210 V, DC Voltage Rating 275 V, Clamping Voltage 550 V, Capacitance 350 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for RV331K10_-HE can be seen below.