The CAPMOD016V500A23 from CAP-XX is a Supercapacitor with Capacitance 480000 to 500000 mF, Voltage Rating 16.2 to 17.1 V, Equivalent Series Resistance 1.8 mOhm, Temperature Operating Range -40 to 65 Degree C. Tags: Through Hole. More details for CAPMOD016V500A23 can be seen below.