The B43726B5828M658 from TDK Corporation is a Supercapacitor with Capacitance 8200 µF, Voltage Rating 450 V, Equivalent Series Resistance 3.3 to 11 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43726B5828M658 can be seen below.