The DDXG2R5LGN591EBA5S from Nippon Chemi Con is a Supercapacitor with Capacitance 590000 mF, Voltage Rating 2.5 V, Equivalent Series Resistance 0.7 to 1 mOhms, Temperature Operating Range -40 to 85 Degree C. Tags: Screw Mount. More details for DDXG2R5LGN591EBA5S can be seen below.