The MOV-20D390K from Bourns is a Varistor with AC Voltage Rating 25 to 31 V, DC Voltage Rating 35 to 43 V, Clamping Voltage 77 V, Capacitance 18000 pF, Temperature Operating Range -40 to 105 ºC. Tags: Through Hole. More details for MOV-20D390K can be seen below.