The SCCZ1EB308SWB from Kyocera AVX is a Supercapacitor with Capacitance 3000000 mF, Voltage Rating 2.3 to 2.7 V, Equivalent Series Resistance 0.2 to 0.29 mOhms, Temperature Operating Range -40 to 85 Degree C. Tags: Through Hole. More details for SCCZ1EB308SWB can be seen below.