The VDRS20W680ByE from Vishay is a Varistor with AC Voltage Rating 680 V, DC Voltage Rating 895 V, Clamping Voltage 1815 V, Capacitance 270 pF, Temperature Operating Range -40 to 85 ºC. Tags: Through Hole. More details for VDRS20W680ByE can be seen below.