The B72220R2211K501 from TDK Corporation is a Varistor with AC Voltage Rating 210 V, DC Voltage Rating 270 V, Clamping Voltage 545 V, Capacitance 1100 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for B72220R2211K501 can be seen below.