The ERZC20EK102 from Panasonic Corporation is a Varistor with AC Voltage Rating 625 V, DC Voltage Rating 825 V, Clamping Voltage 1650 V, Capacitance 400 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Chassis Mount. More details for ERZC20EK102 can be seen below.