The B43733A6188M608 from TDK Corporation is a Supercapacitor with Capacitance 1800 µF, Voltage Rating 500 V, Equivalent Series Resistance 15 to 60 milli-ohm, Temperature Operating Range -25 to 85 Degree C. Tags: Screw Mount. More details for B43733A6188M608 can be seen below.