The MVR40D431K-S from Meritek Electronics Corporation is a Varistor with AC Voltage Rating 275 V, DC Voltage Rating 350 V, Clamping Voltage 710 V, Capacitance 4900 pF, Temperature Operating Range -40 to 105 Degree C. Tags: Through Hole. More details for MVR40D431K-S can be seen below.