The B43726B6228M650 from TDK Corporation is a Supercapacitor with Capacitance 2200 µF, Voltage Rating 500 V, Equivalent Series Resistance 8.9 to 30 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43726B6228M650 can be seen below.