The B72210U2511K502 from TDK Corporation is a Varistor with AC Voltage Rating 510 V, DC Voltage Rating 670 V, Clamping Voltage 1355 V, Capacitance 180 pF, Temperature Operating Range -40 to 125 ºC. Tags: Through Hole. More details for B72210U2511K502 can be seen below.