The B43707A5129M600 from TDK Corporation is a Supercapacitor with Capacitance 12000 µF, Voltage Rating 450 V, Equivalent Series Resistance 3.3 to 9 milli-ohm, Temperature Operating Range -25 to 85 Degree C. Tags: Screw Mount. More details for B43707A5129M600 can be seen below.