The VDRS20W230ByE from Vishay is a Varistor with AC Voltage Rating 230 V, DC Voltage Rating 300 V, Clamping Voltage 595 V, Capacitance 1100 pF, Temperature Operating Range -40 to 85 ºC. Tags: Through Hole. More details for VDRS20W230ByE can be seen below.