The AV 17 K 1812 801 from Bourns is a Varistor with AC Voltage Rating 17 V, DC Voltage Rating 20 V, Clamping Voltage 44 V, Capacitance 3800 pF, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for AV 17 K 1812 801 can be seen below.