The ZOV 550 K 25 from Bourns is a Varistor with AC Voltage Rating 550 V, DC Voltage Rating 745 V, Clamping Voltage 1500 V, Capacitance 690 pF, Temperature Operating Range -40 to 85 ºC. Tags: Through Hole. More details for ZOV 550 K 25 can be seen below.