The B43726A9478M608 from TDK Corporation is a Supercapacitor with Capacitance 4700 µF, Voltage Rating 400 V, Equivalent Series Resistance 5.1 to 16 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43726A9478M608 can be seen below.