The HP-2R7-J208UNJ50 from Jinzhou Kaimei Power is a Supercapacitor with Capacitance 2000000 mF, Voltage Rating 2.7 V, Equivalent Series Resistance 4 mOhms, Temperature Operating Range -40 to 70 Degree C. Tags: Through Hole. More details for HP-2R7-J208UNJ50 can be seen below.