The B72220S0170K101 from TDK Corporation is a Varistor with AC Voltage Rating 17 V, DC Voltage Rating 22 V, Clamping Voltage 53 V, Capacitance 15600 pF, Temperature Operating Range -40 to 105 ºC. Tags: Through Hole. More details for B72220S0170K101 can be seen below.