The B72230M0511M401 from TDK Corporation is a Varistor with AC Voltage Rating 499 V, DC Voltage Rating 670 V, Clamping Voltage 2050 V, Capacitance 950 pF, Temperature Operating Range -40 to 85 Degree C. Tags: PCB Mount, Through Hole. More details for B72230M0511M401 can be seen below.