The FCS0V224ZFTBR24 from Kemet Corporation is a Supercapacitor with Capacitance 220 mF, Voltage Rating 3.5 V, Equivalent Series Resistance 50000 mOhms, Temperature Operating Range -25 to 70 Degree C. Tags: Surface Mount. More details for FCS0V224ZFTBR24 can be seen below.