The ERZE11A221S1 from Panasonic Corporation is a Varistor with AC Voltage Rating 140 V, DC Voltage Rating 180 V, Clamping Voltage 360 V, Capacitance 660 pF, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for ERZE11A221S1 can be seen below.