The B72440P5040S460 from TDK Corporation is a Varistor with AC Voltage Rating 20 V, DC Voltage Rating 34 V, Clamping Voltage 43 V, Capacitance 1 to 6 pF, Temperature Operating Range -40 to 85 Degree C. Tags: Surface Mount. More details for B72440P5040S460 can be seen below.