Super Capacitor 0.22F ELDC-20 +80% Tolerance RG Series  3.6V DC through hole. Sold in 2 pack.   

Electric double layer Gold capacitors
Long high temperature endurance
Low internal resistance

Capacitance0.22 FVoltage3.6 V dcMounting TypeThrough HoleMinimum Operating Temperature-25°CMaximum Operating Temperature+85°CDiameter10.5mmHeight6mmDimensions10.5 (Dia.) x 6mmLead Pitch10mmEquivalent Series Resistance50ΩLifetime2000hSeriesRGTolerance-20 → +80%Tolerance Minus-20%Depth6mmTolerance Plus+80%Terminal TypeThrough HoleCapacitor FamilyElectric Double LayerLead Diameter0.8mm