The B72220U3271K502 from TDK Corporation is a Varistor with AC Voltage Rating 275 V, DC Voltage Rating 350 V, Clamping Voltage 710 V, Capacitance 1150 pF, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for B72220U3271K502 can be seen below.