The RV781K25_-HE from Stackpole Electronics is a Varistor with AC Voltage Rating 485 V, DC Voltage Rating 640 V, Clamping Voltage 1290 V, Capacitance 800 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for RV781K25_-HE can be seen below.