The OV 20 K 155 MX 801 from Bourns is a Varistor with AC Voltage Rating 20 V, DC Voltage Rating 26 V, Clamping Voltage 54 V, Capacitance 1500 pF, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for OV 20 K 155 MX 801 can be seen below.