The PHVL-3R9V505-R from Eaton is a Supercapacitor with Capacitance 5000 mF, Voltage Rating 3.9 V, Equivalent Series Resistance 70 mOhms, Temperature Operating Range -40 to 65 Degree C. Tags: Through Hole. More details for PHVL-3R9V505-R can be seen below.