The HP-2R7-J306VYJ39 from Jinzhou Kaimei Power is a Supercapacitor with Capacitance 30000 mF, Voltage Rating 2.7 V, Equivalent Series Resistance 44 mOhms, Temperature Operating Range -40 to 70 Degree C. Tags: Through Hole. More details for HP-2R7-J306VYJ39 can be seen below.