The DMF4B5R5G105M3DTA0 from CAP-XX is a Supercapacitor with Capacitance 800 to 1200 mF, Voltage Rating 5.5 V, Equivalent Series Resistance 40 to 50 mOhm, Temperature Operating Range -40 to 70 Degree C. Tags: Surface Mount. More details for DMF4B5R5G105M3DTA0 can be seen below.