The CHT-5R5L504R-TW from Taiwan Zhifengwei Technology is a Supercapacitor with Capacitance 0.5 F, Voltage Rating 5.5 V, Equivalent Series Resistance 400 milli-ohm, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for CHT-5R5L504R-TW can be seen below.