The B43726A5128M608 from TDK Corporation is a Supercapacitor with Capacitance 1200 µF, Voltage Rating 450 V, Equivalent Series Resistance 20 to 75 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43726A5128M608 can be seen below.