The TPV-T20N391KS from Meritek Electronics Corporation is a Varistor with AC Voltage Rating 250 V, DC Voltage Rating 320 V, Clamping Voltage 650 V, Capacitance 1000 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for TPV-T20N391KS can be seen below.