The MVR20D331K-S from Meritek Electronics Corporation is a Varistor with AC Voltage Rating 210 V, DC Voltage Rating 275 V, Clamping Voltage 550 V, Capacitance 1200 pF, Temperature Operating Range -40 to 105 Degree C. Tags: Through Hole. More details for MVR20D331K-S can be seen below.