The AV 30 K 1210 401 HT from Bourns is a Varistor with AC Voltage Rating 30 V, DC Voltage Rating 34 V, Clamping Voltage 77 V, Capacitance 1100 pF, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for AV 30 K 1210 401 HT can be seen below.