The MOV-10D391K from Bourns is a Varistor with AC Voltage Rating 250 to 320 V, DC Voltage Rating 351 to 429 V, Clamping Voltage 650 V, Capacitance 312 pF, Temperature Operating Range -40 to 105 ºC. Tags: Through Hole. More details for MOV-10D391K can be seen below.