The Eaton M Family of supercapacitors offers high capacitance and ultra-low equivalent series resistance in 8 mm, 10 mm and 13 mm diameter can sizes.
M Supercapacitor data sheet
HB Cylindrical supercapacitor | 2.5 V | 3.0 F to 110 F | Eaton
HB Supercapacitor
HV Cylindrical supercapacitor | 2.7 V | 1.0 F to 100 F | Eaton
HV Supercapacitor