0.22F EECS0HD224V Panasonic - Super Capacitor 5.5V (10.5 mm) - (AD37587)

Description:

Yes, you read that right: a 0.22 farad capacitor. This tiny capacitor can be charged and then slowly dissipated by running a complete system for hours. Combine two in series to get 0.22F at 11V. Do not overvolt or reverse bias these capacitors.

Data Sheet