The B72540T0040M062 from TDK Corporation is a Varistor with AC Voltage Rating 4 V, DC Voltage Rating 5.5 V, Clamping Voltage 17 V, Capacitance 24000 pF, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for B72540T0040M062 can be seen below.