The RCHT1680M1UEH0002 from Taiyo Yuden is a Supercapacitor with Capacitance 68 µF, Voltage Rating 50 V, Equivalent Series Resistance 30 milli-ohm, Temperature Operating Range -55 to 105 Degree C. Tags: Surface Mount. More details for RCHT1680M1UEH0002 can be seen below.