Supercapacitors

Cornell Dubilier (CDE) Supercapacitors are also known as ultracapacitors, double-layer capacitors, or electro-chemical double layer capacitors (EDLC). These supercapacitors offer a comprehensive range of capacitance values and voltages. The utilized CDE technology is used in various applications, from battery backup in smart meters to regenerative braking. Ranging from board-mountable coin types to radial form factors, these supercapacitors provide high-voltage modules with active or passive balancing. CDE Supercapacitors are ideal for wind turbines, mass transit, hybrid cars, consumer electronics, and industrial equipment applications.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Capacitance
Voltage Rating DC
Termination Style
Lead Spacing
Diameter
Length
Width
Life
ESR
Tolerance
Orientation
Product
Minimum Operating Temperature
Maximum Operating Temperature
Height
Series
Packaging
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 25F 2.7V
Datasheet
200In Stock
Min.: 1
Mult.: 1

25 F 2.7 VDC Radial 7.5 mm (0.295 in) 16 mm (0.63 in) 25 mm 1000 Hour, 500000 Cycle 60 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 60 C 25 mm DCN Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 400F 2.7V +30% / -10% tol
Datasheet
44In Stock
Min.: 1
Mult.: 1

400 F 2.7 VDC Snap In 35 mm (1.378 in) 1000 Hour, 500000 Cycle 10 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 60 C 62 mm DCN Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 5F, 9V, 39x33x13mm
Datasheet
324In Stock
Min.: 1
Mult.: 1

5 F 9 VDC Radial 21 mm (0.827 in) 39 mm 13 mm 1000 Hour 230 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 33 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 18VDC 18.6F Tol -10%/+30% 112x67x19.5mm
Datasheet
22In Stock
Min.: 1
Mult.: 1

18 F 18 VDC Wire 112 mm 19.5 mm 1000 Hour 220 mOhms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 67 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 1.5F 3.6V 85C
Datasheet
610In Stock
Min.: 1
Mult.: 1

1.5 F 3.6 VDC Axial 19 mm (0.748 in) 5 mm 1000 Hour 30 Ohms - 20 %, + 80 % Vertical EDLC / Supercaps - 25 C + 85 C EDS Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.5F, 60V, 73.5x27x31.5mm STD MOD
Datasheet
84In Stock
Min.: 1
Mult.: 1

500000 uF 60 VDC Wire 73.5 mm 31.5 mm 1000 Hour 2000 mOhms - 10 %, + 30 % Vertical Supercapacitors / Ultracapacitors - 40 C + 65 C 27 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.75F, 60V, 91x30x39mm STD MOD
Datasheet
41In Stock
Min.: 1
Mult.: 1

750000 uF 60 VDC Wire 91 mm 39 mm 1000 Hour 1420 mOhms - 10 %, + 30 % Vertical Supercapacitors / Ultracapacitors - 40 C + 65 C 30 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 2F, 8.1V, 31x23x11mm
Datasheet
65In Stock
120Expected 06/07/2026
Min.: 1
Mult.: 1

2 F 8.1 VDC Radial 16 mm (0.63 in) 31 mm 11 mm 1500 Hour 380 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 23 mm DGH Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.33F, 8.1V, 25x16x8.5mm
Datasheet
416In Stock
Min.: 1
Mult.: 1

330000 uF 8.1 VDC Radial 13.5 mm (0.531 in) 25 mm 8.5 mm 1500 Hour 1220 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 16 mm DGH Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3.33F, 8.1V, 31x27x11mm
Datasheet
150In Stock
Min.: 1
Mult.: 1

3.33 F 8.1 VDC Through Hole 21 mm (0.827 in) 31 mm 11 mm 1500 hour 290 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 27 mm DGH Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.67F, 8.1V, 25x16x8.5mm
Datasheet
415In Stock
Min.: 1
Mult.: 1

670000 uF 8.1 VDC Through Hole 13.5 mm (0.531 in) 25 mm 8.5 mm 1500 hour 740 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 16 mm DGH Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3VDC 10F 10x25mm
Datasheet
226In Stock
3 400Expected 01/06/2026
Min.: 1
Mult.: 1

10 F 3 VDC Radial 5 mm (0.197 in) 10 mm (0.394 in) 25 mm 1000 Hour 180 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3VDC 15F 12.5x30mm
Datasheet
590In Stock
Min.: 1
Mult.: 1

15 F 3 VDC Radial 5 mm (0.197 in) 12.5 mm (0.492 in) 30 mm 1000 Hour 80 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 1.66F, 9V, 31x23x11mm
Datasheet
164In Stock
Min.: 1
Mult.: 1

1.66 F 9 VDC Radial 16 mm (0.63 in) 31 mm 11 mm 1000 Hour - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 23 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.33F, 9V, 25x16x8.5mm
Datasheet
389In Stock
Min.: 1
Mult.: 1

330000 uF 9 VDC Radial 13.5 mm (0.531 in) 25 mm 8.5 mm 1000 Hour - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 16 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3.33F, 9V, 31x27x11mm
Datasheet
218In Stock
Min.: 1
Mult.: 1

3.33 F 9 VDC Through Hole 1000 Hour - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3VDC 35F 16x31.5mm
Datasheet
97In Stock
200Expected 01/06/2026
Min.: 1
Mult.: 1

35 F 3 VDC Radial 7.5 mm (0.295 in) 16 mm (0.63 in) 31.5 mm 1000 Hour 50 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 30VDC 1F Tol -10%/+30% 54x30x22mm
Datasheet
31In Stock
Min.: 1
Mult.: 1

1 F 30 VDC Wire 54 mm 22 mm 1000 Hour 1.818 Ohms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 30 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 18VDC 1.6F Tol -10%/+30% 64x30x11mm
Datasheet
29In Stock
Min.: 1
Mult.: 1

1.6 F 18 VDC Wire 64 mm 11 mm 1000 Hour 1.091 Ohms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 30 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 18VDC 0.25F Tol -10%/+30% 42x24.5x7.5mm
Datasheet
29In Stock
75Expected 14/09/2026
Min.: 1
Mult.: 1

250000 uF 18 VDC Wire 42 mm 7.5 mm 1000 Hour 3.879 Ohms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 24.5 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 30VDC 0.3F Tol -10%/+30% 44x27x18mm
Datasheet
44In Stock
Min.: 1
Mult.: 1

300000 uF 30 VDC Wire 44 mm 18 mm 1000 Hour 1.515 Ohms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 27 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 9VDC 36.6F Tol -10%/+30% 57x67x19.5mm
Datasheet
9In Stock
Min.: 1
Mult.: 1

36.6 F 9 VDC Wire 57 mm 19.5 mm 1000 Hour 110 mOhms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 67 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 18VDC 5.8F Tol -10%/+30% 100x39x17.5mm
Datasheet
6In Stock
Min.: 1
Mult.: 1

5.8 F 18 VDC Wire 100 mm 17.5 mm 1000 Hour 303 mOhms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 39 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 30VDC 7F Tol -10%/+30% 94x57x38mm
Datasheet
5In Stock
Min.: 1
Mult.: 1

7 F 30 VDC Wire 94 mm 38 mm 1000 Hour 404 mOhms - 10 %, + 30 % EDLC / Supercaps - 40 C + 65 C 57 mm DSM Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 1.5F 5.5V +20% / -20% tol
Datasheet
2 285In Stock
Min.: 1
Mult.: 1

1.5 F 5.5 VDC 1000 Hour, 500000 Cycle 500 mOhms EDLC / Supercaps - 40 C + 60 C DCN Bulk