The HP-2R7-J354VYJ03 from Jinzhou Kaimei Power is a Supercapacitor with Capacitance 350 mF, Voltage Rating 2.7 V, Equivalent Series Resistance 500 mOhms, Temperature Operating Range -40 to 70 Degree C. Tags: Through Hole. More details for HP-2R7-J354VYJ03 can be seen below.