The B43706A6128M650 from TDK Corporation is a Supercapacitor with Capacitance 1200 µF, Voltage Rating 500 V, Equivalent Series Resistance 16 to 55 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43706A6128M650 can be seen below.