The MOV-20D331K from Bourns is a Varistor with AC Voltage Rating 210 to 275 V, DC Voltage Rating 297 to 363 V, Clamping Voltage 550 V, Capacitance 1440 pF, Temperature Operating Range -40 to 105 ºC. Tags: Through Hole. More details for MOV-20D331K can be seen below.