The NL2R7307M3550 from Yeong Long Technologies is a Supercapacitor with Capacitance 300 F, Voltage Rating 2.3 to 2.7 V, Equivalent Series Resistance 13 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for NL2R7307M3550 can be seen below.