The VDRH20X680ByE from Vishay is a Varistor with AC Voltage Rating 680 V, DC Voltage Rating 895 V, Clamping Voltage 1815 V, Capacitance 250 pF, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for VDRH20X680ByE can be seen below.