@inlovewithpda that's probably a supercapacitor, 3.3 Volts, 0.22 Farad are cap specs. I'm not sure if you'll find something in exactly that format but you should be able to find similar specs. The voltage is its maximum safe voltage, so afaik you can always go higher there
@inlovewithpda (you can check the physical measurements on the datasheets)
@inlovewithpda looks like there's some that look very similar https://eu.mouser.com/c/passive-components/capacitors/supercapacitors-ultracapacitors/?q=supercapacitor&capacitance=220000%20uF&voltage%20rating%20dc=3.3%20VDC