The 63CEV33M8X10.5 from Rubycon is a Supercapacitor with Capacitance 0.033 mF, Voltage Rating 63 V, Equivalent Series Resistance 40 mOhm, Temperature Operating Range -55 to 105 Degree C. Tags: Surface Mount. More details for 63CEV33M8X10.5 can be seen below.