The B43706B6568M657 from TDK Corporation is a Supercapacitor with Capacitance 5600 µF, Voltage Rating 500 V, Equivalent Series Resistance 3.9 to 12 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43706B6568M657 can be seen below.