The DDKA2R5ELL500KM50S from Nippon Chemi Con is a Supercapacitor with Capacitance 50000 mF, Voltage Rating 2.5 V, Equivalent Series Resistance 11 to 13.2 mOhms, Temperature Operating Range -40 to 70 Degree C. Tags: Screw Mount. More details for DDKA2R5ELL500KM50S can be seen below.