The B43726B5338M650 from TDK Corporation is a Supercapacitor with Capacitance 3300 µF, Voltage Rating 450 V, Equivalent Series Resistance 7.5 to 28 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43726B5338M650 can be seen below.