The B72220U3211K502 from TDK Corporation is a Varistor with AC Voltage Rating 210 V, DC Voltage Rating 270 V, Clamping Voltage 545 V, Capacitance 1500 pF, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for B72220U3211K502 can be seen below.