The TPV-T20N390KS from Meritek Electronics Corporation is a Varistor with AC Voltage Rating 25 V, DC Voltage Rating 31 V, Clamping Voltage 77 V, Capacitance 8500 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for TPV-T20N390KS can be seen below.