The B43726B6158M608 from TDK Corporation is a Supercapacitor with Capacitance 1500 µF, Voltage Rating 500 V, Equivalent Series Resistance 14 to 45 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for B43726B6158M608 can be seen below.