The RCHVK220M4EDE7002E from Taiyo Yuden is a Supercapacitor with Capacitance 22 µF, Voltage Rating 63 V, Equivalent Series Resistance 80 milli-ohm, Temperature Operating Range -55 to 125 Degree C. Tags: Surface Mount. More details for RCHVK220M4EDE7002E can be seen below.