The B43707A9338M650 from TDK Corporation is a Supercapacitor with Capacitance 3300 µF, Voltage Rating 400 V, Equivalent Series Resistance 13 to 36 milli-ohm, Temperature Operating Range -25 to 85 Degree C. Tags: Screw Mount. More details for B43707A9338M650 can be seen below.