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 (USD) 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 3F 3.0V 8*20
Datasheet
999In Stock
Min.: 1
Mult.: 1

3 F 3 VDC Radial 8 mm (0.315 in) 1500 Hour, 500000 Cycle 80 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 21.5 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3.5F 6.0V 11*21*27
Datasheet
433In Stock
300Expected 2026/09/30
Min.: 1
Mult.: 1

3.5 F 6 VDC Radial 21 mm 11 mm 1500 Hour, 500000 Cycle 130 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 28 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 350F 3.0V 35*60
Datasheet
41In Stock
Min.: 1
Mult.: 1

350 F 3 VDC Snap In 35 mm (1.378 in) 1500 Hour, 500000 Cycle 3 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 60 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 5F 3.0V 10*20
Datasheet
595In Stock
800Expected 2026/10/12
Min.: 1
Mult.: 1

5 F 3 VDC Radial 10 mm (0.394 in) 1500 Hour, 500000 Cycle 70 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 22 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 5F 6.0V 11*21*32
Datasheet
25In Stock
450Expected 2026/10/26
Min.: 1
Mult.: 1

5 F 6 VDC Radial 21 mm 11 mm 1500 Hour, 500000 Cycle 100 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 33 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 50F 3.0V 18*40
Datasheet
24In Stock
Min.: 1
Mult.: 1

50 F 3 VDC Radial 18 mm (0.709 in) 1500 Hour, 500000 Cycle 15 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 42 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.67F, 9V, 25x16x8.5mm
Datasheet
18In Stock
240Expected 2026/12/01
Min.: 1
Mult.: 1

670 mF 9 VDC Radial 25 mm 8.5 mm 1000 Hour 980 mOhms - 10 %, + 30 % Vertical EDLC / Supercaps - 40 C + 85 C 16 mm DSF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 18VDC 5.8F Tol -10%/+30% 100x39x17.5mm
Datasheet
1In 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 0.1F 5.5V 70C
Datasheet
823In Stock
Min.: 1
Mult.: 1

100 mF 5.5 VDC Axial 11.5 mm (0.453 in) 5.5 mm 1000 Hour 75 Ohms - 20 %, + 80 % Horizontal EDLC / Supercaps - 25 C + 70 C EDC Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 1.5F 5.5V 70C
Datasheet
103In Stock
700Expected 2027/01/18
Min.: 1
Mult.: 1

1.5 F 5.5 VDC Axial 19 mm (0.748 in) 5 mm 1000 Hour 30 Ohms - 20 %, + 80 % Vertical EDLC / Supercaps - 25 C + 70 C EDC Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.22F 5.5V 70C
Datasheet
939In Stock
1,800Expected 2027/02/09
Min.: 1
Mult.: 1

220 mF 5.5 VDC Radial 13.5 mm (0.531 in) 9.5 mm 1000 Hour 75 Ohms - 20 %, + 80 % Horizontal EDLC / Supercaps - 25 C + 70 C EDC Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.33F 5.5V 70C
Datasheet
8In Stock
1,800Expected 2027/01/18
Min.: 1
Mult.: 1

330 mF 5.5 VDC Radial 13.5 mm (0.531 in) 7 mm 1000 Hour 75 Ohms - 20 %, + 80 % Horizontal EDLC / Supercaps - 25 C + 70 C EDC Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 1F 3.6V 85C
Datasheet
379In Stock
3,500On Order
Min.: 1
Mult.: 1

1 F 3.6 VDC Axial 19 mm (0.748 in) 6.5 mm 1000 Hour 30 Ohms - 20 %, + 80 % Horizontal EDLC / Supercaps - 25 C + 85 C EDS Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 1F 3.6V 85C
Datasheet
150In Stock
2,100Expected 2026/10/26
Min.: 1
Mult.: 1

1 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 0.22F 3.6V 85C
Datasheet
862In Stock
12,000On Order
Min.: 1
Mult.: 1

220 mF 3.6 VDC Axial 11.5 mm (0.453 in) 5.5 mm 1000 Hour 75 Ohms - 20 %, + 80 % Horizontal EDLC / Supercaps - 25 C + 85 C EDS Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 0.68F 5.5V 85C
Datasheet
400In Stock
Min.: 1
Mult.: 1

680 mF 5.5 VDC Radial 21.5 mm (0.846 in) 9.5 mm 1000 Hour 50 Ohms - 20 %, + 80 % Horizontal EDLC / Supercaps - 25 C + 85 C EDS Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3.8V10F 8*14
Datasheet
100In Stock
802Expected 2026/11/11
Min.: 1
Mult.: 1

10 F 3.8 VDC Radial 3.5 mm (0.138 in) 8 mm (0.315 in) 14 mm 1000 Hour, 500000 Cycle 500 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 15 C + 85 C VMF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors SUPER CAP/IC
Datasheet
40In Stock
Min.: 1
Mult.: 1

220 F 3.8 VDC Radial 16 mm (0.63 in) 1000 Hour, 500000 Cycle 60 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 15 C + 85 C 27 mm VMF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3.8V25F 8*20
Datasheet
84In Stock
200Expected 2026/09/30
Min.: 1
Mult.: 1

25 F 3.8 VDC Radial 3.5 mm (0.138 in) 8 mm (0.315 in) 20 mm 1000 Hour, 500000 Cycle 300 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 15 C + 85 C 20 mm VMF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors SUPER CAP/IC
Datasheet
95In Stock
Min.: 1
Mult.: 1

30 F 3.8 VDC Radial 10 mm (0.394 in) 1000 Hour, 500000 Cycle 250 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 15 C + 85 C 18 mm VMF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3.8V40F 10*16
Datasheet
95In Stock
Min.: 1
Mult.: 1

40 F 3.8 VDC Radial 5 mm (0.197 in) 10 mm (0.394 in) 16 mm 1000 Hour, 500000 Cycle 250 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 15 C + 85 C 16 mm VMF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors SUPER CAP/IC
Datasheet
92In Stock
Min.: 1
Mult.: 1

50 F 3.8 VDC Radial 10 mm (0.394 in) 1000 Hour, 500000 Cycle 200 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 15 C + 85 C 22 mm VMF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors 3.8V40F 10*16
Datasheet
75In Stock
Min.: 1
Mult.: 1

40 F 3.8 VDC Radial 5 mm (0.197 in) 10 mm (0.394 in) 16 mm 1000 Hour, 250000 Cycle 250 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 25 C + 60 C 18 mm VPF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors SUPER CAP/IC
Datasheet
93In Stock
Min.: 1
Mult.: 1

50 F 3.8 VDC Radial 10 mm (0.394 in) 1000 Hour, 250000 Cycle 200 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 25 C + 60 C 22 mm VPF Bulk
Knowles / Illinois Capacitor Supercapacitors / Ultracapacitors SUPER CAP/IC
Datasheet
94In Stock
Min.: 1
Mult.: 1

70 F 3.8 VDC Radial 10 mm (0.394 in) 1000 Hour, 250000 Cycle 100 mOhms 20 % Vertical Lithium-Ion Supercapacitors - 25 C + 60 C 27 mm VPF Bulk