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SEK Series Capacitors

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Part #

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 50V RAD

SEK331M050ST
Knowles / Illinois Capacitor
1: $2.85
12,711In Stock

Mfr. Part No.
SEK331M050ST

Mouser Part No
539-SEK50V330

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 50V RAD

Datasheet

12,711In Stock

$2.85

$1.96

$1.56

$1.30

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 35V RADIAL

SEK101M035ST
Knowles / Illinois Capacitor
1: $1.17
9,852In Stock

Mfr. Part No.
SEK101M035ST

Mouser Part No
539-SEK35V100

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 35V RADIAL

Datasheet

9,852In Stock

$1.17

$0.617

$0.553

$0.421

$0.392

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 4.7uF 200V -40C +105C

SEK4R7M200ST
Knowles / Illinois Capacitor
1: $0.82
3,903In Stock

Mfr. Part No.
SEK4R7M200ST

Mouser Part No
598-SEK4R7M200ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 4.7uF 200V -40C +105C

Datasheet

3,903In Stock

$0.82

$0.548

$0.374

$0.303

$0.281

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

4.7 uF

20 %

200 VDC

Aluminium Electrolytic Capacitors - Radial Leaded ALUM 35V 330uF

SEK331M035ST
Knowles / Illinois Capacitor
1: $2.20
4,630In Stock

Mfr. Part No.
SEK331M035ST

Mouser Part No
539-SEK35V330

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded ALUM 35V 330uF

Datasheet

4,630In Stock

$2.20

$1.15

$0.945

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 47uF 100V 20%

SEK470M100ST
Knowles / Illinois Capacitor
1: $1.31
3,537In Stock

Mfr. Part No.
SEK470M100ST

Mouser Part No
598-SEK470M100ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 47uF 100V 20%

Datasheet

3,537In Stock

$1.31

$0.68

$0.553

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

47 uF

20 %

100 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 25V

SEK331M025ST
Knowles / Illinois Capacitor
1: $2.02
3,449In Stock

Mfr. Part No.
SEK331M025ST

Mouser Part No
598-SEK331M025ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 25V

Datasheet

3,449In Stock

$2.02

$1.11

$0.912

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

25 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 25V 220uF ELEC RADL

SEK221M025ST
Knowles / Illinois Capacitor
1: $4.41
631In Stock

Mfr. Part No.
SEK221M025ST

Mouser Part No
539-SEK25V220

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 25V 220uF ELEC RADL

Datasheet

631In Stock

$4.41

$3.14

$2.52

$2.31

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

25 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 50V

SEK102M050ST
Knowles / Illinois Capacitor
1: $18.90
195In Stock

Mfr. Part No.
SEK102M050ST

Mouser Part No
598-SEK102M050ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 50V

Datasheet

195In Stock

$18.90

$15.35

$13.04

$12.30

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1000 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded ALUM 35V 4700uF 105%

SEK472M035ST
Knowles / Illinois Capacitor
1: $6.80
1,983In Stock

Mfr. Part No.
SEK472M035ST

Mouser Part No
539-SEK35V4700

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded ALUM 35V 4700uF 105%

Datasheet

1,983In Stock

$6.80

$4.77

$4.02

$3.36

$3.17

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

4700 uF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 3.3uF 50V RADIAL 20%

SEK3R3M050ST
Knowles / Illinois Capacitor
1: $0.904
1,252In Stock

Mfr. Part No.
SEK3R3M050ST

Mouser Part No
539-SEK50V3.3

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 3.3uF 50V RADIAL 20%

Datasheet

1,252In Stock

$0.904

$0.60

$0.374

$0.311

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

3.3 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 470uF 16V

SEK471M016ST
Knowles / Illinois Capacitor
1: $1.56
2,445In Stock

Mfr. Part No.
SEK471M016ST

Mouser Part No
598-SEK471M016ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 470uF 16V

Datasheet

2,445In Stock

$1.56

$0.795

$0.652

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

470 uF

20 %

16 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 33uF 35V 20%

SEK330M035ST
Knowles / Illinois Capacitor
1: $0.904
6,603In Stock

Mfr. Part No.
SEK330M035ST

Mouser Part No
598-SEK330M035ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 33uF 35V 20%

Datasheet

6,603In Stock

$0.904

$0.424

$0.378

$0.299

$0.272

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

33 uF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 2200uF 35V 20%

SEK222M035ST
Knowles / Illinois Capacitor
1: $3.49
966In Stock

Mfr. Part No.
SEK222M035ST

Mouser Part No
598-SEK222M035ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 2200uF 35V 20%

Datasheet

966In Stock

$3.49

$2.47

$1.96

$1.79

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

2200 uF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 4700uF 16V 20%

SEK472M016ST
Knowles / Illinois Capacitor
1: $5.92
736In Stock

Mfr. Part No.
SEK472M016ST

Mouser Part No
598-SEK472M016ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 4700uF 16V 20%

Datasheet

736In Stock

$5.92

$4.27

$3.70

$3.27

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

4700 uF

20 %

16 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 220uF 100V 20%

SEK221M100ST
Knowles / Illinois Capacitor
1: $4.56
820In Stock

Mfr. Part No.
SEK221M100ST

Mouser Part No
598-SEK221M100ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 220uF 100V 20%

Datasheet

820In Stock

$4.56

$3.38

$2.92

$2.59

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

100 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 10V

SEK102M010ST
Knowles / Illinois Capacitor
1: $2.20
1,623In Stock

Mfr. Part No.
SEK102M010ST

Mouser Part No
598-SEK102M010ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 10V

Datasheet

1,623In Stock

$2.20

$1.53

$1.13

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1000 uF

20 %

10 VDC

Aluminium Organic Polymer Capacitors 35V 47uF 27mOhms Radial 6.3x6mm

35SEK47M
Panasonic
1: $2.11
4,778In Stock
NRND

Mfr. Part No.
35SEK47M

Mouser Part No
667-35SEK47M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 35V 47uF 27mOhms Radial 6.3x6mm

Learn More

Datasheet

4,778In Stock

$2.11

$1.47

$1.08

$0.904

$0.844

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

47 uF

20 %

35 VDC

Aluminium Organic Polymer Capacitors 25V 120uF 24mOhms SMD 8x7mm

25SEK120M
Panasonic
1: $2.45
464In Stock
NRND

Mfr. Part No.
25SEK120M

Mouser Part No
667-25SEK120M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 25V 120uF 24mOhms SMD 8x7mm

Learn More

Datasheet

464In Stock

$2.45

$1.65

$1.30

$1.08

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

120 uF

20 %

25 VDC

Aluminium Organic Polymer Capacitors 35V 180uF 20mOhms SMD 8x12mm

35SEK180M
Panasonic
1: $2.88
255In Stock
NRND

Mfr. Part No.
35SEK180M

Mouser Part No
667-35SEK180M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 35V 180uF 20mOhms SMD 8x12mm

Learn More

Datasheet

255In Stock

$2.88

$1.96

$1.54

$1.28

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

180 uF

20 %

35 VDC

Aluminium Organic Polymer Capacitors 25V 270uF 16mOhms SMD 8x12mm

25SEK270M
Panasonic
1: $2.97
68In Stock
1,200Expected 12/6/2026
NRND

Mfr. Part No.
25SEK270M

Mouser Part No
667-25SEK270M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 25V 270uF 16mOhms SMD 8x12mm

Learn More

Datasheet

68In Stock

1,200Expected 12/6/2026

$2.97

$1.99

$1.70

$1.49

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

270 uF

20 %

25 VDC

Aluminium Organic Polymer Capacitors 25V 470uF 14mOhms SMD 10x13mm

25SEK470M
Panasonic
1: $3.64
96In Stock
400Expected 30/7/2026
NRND

Mfr. Part No.
25SEK470M

Mouser Part No
667-25SEK470M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 25V 470uF 14mOhms SMD 10x13mm

Learn More

Datasheet

96In Stock

400Expected 30/7/2026

$3.64

$2.45

$2.10

$1.85

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

470 uF

20 %

25 VDC

Aluminium Organic Polymer Capacitors 25V 82uF 25mOhms 6.3 x 6mm

25SEK82M
Panasonic
1: $2.11
511In Stock
1,000Expected 11/8/2026
NRND

Mfr. Part No.
25SEK82M

Mouser Part No
667-25SEK82M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 25V 82uF 25mOhms 6.3 x 6mm

Learn More

Datasheet

511In Stock

1,000Expected 11/8/2026

$2.11

$1.13

$1.03

$0.904

$0.791

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

82 uF

20 %

25 VDC

Aluminium Organic Polymer Capacitors 35V 330uF 18mOhms SMD 10x13mm

35SEK330M
Panasonic
1: $3.61
180In Stock
400Expected 27/8/2026
NRND

Mfr. Part No.
35SEK330M

Mouser Part No
667-35SEK330M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 35V 330uF 18mOhms SMD 10x13mm

Learn More

Datasheet

180In Stock

400Expected 27/8/2026

$3.61

$2.53

$2.25

$1.85

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

330 uF

20 %

35 VDC

Aluminium Organic Polymer Capacitors 50V 22uF 35mOhms SMD 6.3x6mm

50SEK22M
Panasonic
1: $2.27
5In Stock
1,000Expected 13/7/2026
NRND

Mfr. Part No.
50SEK22M

Mouser Part No
667-50SEK22M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 50V 22uF 35mOhms SMD 6.3x6mm

Learn More

Datasheet

5In Stock

1,000Expected 13/7/2026

$2.27

$1.47

$1.10

$0.904

$0.844

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

22 uF

20 %

50 VDC

Aluminium Organic Polymer Capacitors 50V 33uF 35mOhms SMD 8x7mm

50SEK33M
Panasonic
1: $2.61
45In Stock
1,000Expected 18/1/2027
NRND

Mfr. Part No.
50SEK33M

Mouser Part No
667-50SEK33M

NRND

Panasonic

Aluminium Organic Polymer Capacitors 50V 33uF 35mOhms SMD 8x7mm

Learn More

Datasheet

45In Stock

1,000Expected 18/1/2027

$2.61

$1.71

$1.39

$1.21

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

33 uF

20 %

50 VDC

SEK Series Capacitors

Types of Capacitors

Customer Service Office

Company

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1 uF
2.2 uF
3.3 uF
4.7 uF
10 uF
22 uF
33 uF
47 uF
68 uF
82 uF
100 uF
120 uF
180 uF
220 uF
270 uF
330 uF
470 uF
1000 uF
2200 uF
3300 uF