The RAHVK221M1GFF7002E from Taiyo Yuden is a Supercapacitor with Capacitance 220 µF, Voltage Rating 35 V, Equivalent Series Resistance 25 milli-ohm, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for RAHVK221M1GFF7002E can be seen below.