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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: £1.58
12,149In Stock

Mfr. Part No.
SEK331M050ST

Mouser Part No
539-SEK50V330

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 50V RAD

Datasheet

12,149In Stock

£1.58

£1.07

£0.841

£0.70

£0.623

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

50 VDC

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

SEK221M025ST
Knowles / Illinois Capacitor
1: £0.917
606In Stock

Mfr. Part No.
SEK221M025ST

Mouser Part No
539-SEK25V220

Knowles / Illinois Capacitor

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

Datasheet

606In Stock

£0.917

£0.89

£0.882

£0.496

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

25 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 25V 470uF RADIAL

SEK471M025ST
Knowles / Illinois Capacitor
1: £4.09
423In Stock

Mfr. Part No.
SEK471M025ST

Mouser Part No
539-SEK25V470

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 25V 470uF RADIAL

Datasheet

423In Stock

£4.09

£2.49

£2.17

£2.04

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

470 uF

20 %

25 VDC

Aluminium Electrolytic Capacitors - Radial Leaded ALUM EL 35V 1000uF

SEK102M035ST
Knowles / Illinois Capacitor
1: £2.59
214In Stock

Mfr. Part No.
SEK102M035ST

Mouser Part No
539-SEK35V1000

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded ALUM EL 35V 1000uF

Datasheet

214In Stock

£2.59

£1.92

£1.79

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 mF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 470uF 35V

SEK471M035ST
Knowles / Illinois Capacitor
1: £4.71
30In Stock

Mfr. Part No.
SEK471M035ST

Mouser Part No
539-SEK471M035ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 470uF 35V

Datasheet

30In Stock

£4.71

£3.27

£2.62

£2.28

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

470 uF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 10uF 105C

SEK100M050ST
Knowles / Illinois Capacitor
1: £0.615
5,507In Stock
5,000Expected 21/10/2026

Mfr. Part No.
SEK100M050ST

Mouser Part No
539-SEK50V10

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 10uF 105C

Datasheet

5,507In Stock

5,000Expected 21/10/2026

£0.615

£0.308

£0.276

£0.221

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

10 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 22uF 105C

SEK220M050ST
Knowles / Illinois Capacitor
1: £0.405
4,053In Stock
2,000Expected 23/12/2026

Mfr. Part No.
SEK220M050ST

Mouser Part No
539-SEK50V22

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 22uF 105C

Datasheet

4,053In Stock

2,000Expected 23/12/2026

£0.405

£0.254

£0.207

£0.177

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 1uF 50V

SEK010M050ST
Knowles / Illinois Capacitor
1: £0.623
4,347In Stock
10,000Expected 11/01/2027

Mfr. Part No.
SEK010M050ST

Mouser Part No
598-SEK010M050ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 1uF 50V

Datasheet

4,347In Stock

10,000Expected 11/01/2027

£0.623

£0.299

£0.269

£0.215

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 1uF 200V 20%

SEK010M200ST
Knowles / Illinois Capacitor
1: £0.488
360In Stock

Mfr. Part No.
SEK010M200ST

Mouser Part No
598-SEK010M200ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 1uF 200V 20%

Datasheet

360In Stock

£0.488

£0.229

£0.202

£0.162

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 uF

20 %

200 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 10uF 25V 20%

SEK100M025ST
Knowles / Illinois Capacitor
1: £0.368
2,070In Stock

Mfr. Part No.
SEK100M025ST

Mouser Part No
598-SEK100M025ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 10uF 25V 20%

Datasheet

2,070In Stock

£0.368

£0.174

£0.153

£0.12

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

10 uF

20 %

25 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 16V

SEK101M016ST
Knowles / Illinois Capacitor
1: £0.684
358In Stock

Mfr. Part No.
SEK101M016ST

Mouser Part No
598-SEK101M016ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 16V

Datasheet

358In Stock

£0.684

£0.333

£0.299

£0.24

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

16 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 25V

SEK101M025ST
Knowles / Illinois Capacitor
1: £1.12
561In Stock

Mfr. Part No.
SEK101M025ST

Mouser Part No
598-SEK101M025ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 25V

Datasheet

561In Stock

£1.12

£0.55

£0.457

£0.383

£0.362

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

25 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 63V

SEK101M063ST
Knowles / Illinois Capacitor
1: £1.15
2,585In Stock

Mfr. Part No.
SEK101M063ST

Mouser Part No
598-SEK101M063ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 63V

Datasheet

2,585In Stock

£1.15

£0.796

£0.591

£0.494

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

63 VDC

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

SEK101M100ST
Knowles / Illinois Capacitor
1: £1.85
844In Stock

Mfr. Part No.
SEK101M100ST

Mouser Part No
598-SEK101M100ST

Knowles / Illinois Capacitor

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

Datasheet

844In Stock

£1.85

£1.24

£0.978

£0.747

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

100 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 50V

SEK102M050ST
Knowles / Illinois Capacitor
1: £4.09
195In Stock

Mfr. Part No.
SEK102M050ST

Mouser Part No
598-SEK102M050ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 50V

Datasheet

195In Stock

£4.09

£3.29

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 mF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 22uF 63V -40C +105C

SEK220M063ST
Knowles / Illinois Capacitor
1: £0.398
1,379In Stock

Mfr. Part No.
SEK220M063ST

Mouser Part No
598-SEK220M063ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 22uF 63V -40C +105C

Datasheet

1,379In Stock

£0.398

£0.188

£0.162

£0.122

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

63 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 22uF 100V

SEK220M100ST
Knowles / Illinois Capacitor
1: £0.96
1,595In Stock

Mfr. Part No.
SEK220M100ST

Mouser Part No
598-SEK220M100ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 22uF 100V

Datasheet

1,595In Stock

£0.96

£0.479

£0.432

£0.333

£0.318

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

100 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 220uF 50V

SEK221M050ST
Knowles / Illinois Capacitor
1: £1.41
5In Stock
200Expected 19/10/2026

Mfr. Part No.
SEK221M050ST

Mouser Part No
598-SEK221M050ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 220uF 50V

Datasheet

5In Stock

200Expected 19/10/2026

£1.41

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 50V 20%

SEK2R2M050ST
Knowles / Illinois Capacitor
1: £0.398
2,295In Stock

Mfr. Part No.
SEK2R2M050ST

Mouser Part No
598-SEK2R2M050ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 50V 20%

Datasheet

2,295In Stock

£0.398

£0.196

£0.169

£0.156

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

2.2 uF

20 %

50 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 100V 20%

SEK2R2M100ST
Knowles / Illinois Capacitor
1: £0.383
88In Stock

Mfr. Part No.
SEK2R2M100ST

Mouser Part No
598-SEK2R2M100ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 100V 20%

Datasheet

88In Stock

£0.383

£0.21

£0.188

£0.15

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

2.2 uF

20 %

100 VDC

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

SEK330M035ST
Knowles / Illinois Capacitor
1: £0.383
6,595In Stock

Mfr. Part No.
SEK330M035ST

Mouser Part No
598-SEK330M035ST

Knowles / Illinois Capacitor

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

Datasheet

6,595In Stock

£0.383

£0.252

£0.157

£0.132

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

33 uF

20 %

35 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 16V

SEK331M016ST
Knowles / Illinois Capacitor
1: £0.986
280In Stock

Mfr. Part No.
SEK331M016ST

Mouser Part No
598-SEK331M016ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 16V

Datasheet

280In Stock

£0.986

£0.629

£0.487

£0.387

£0.36

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

16 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 3.3uF 200V 20%

SEK3R3M200ST
Knowles / Illinois Capacitor
1: £0.661
507In Stock

Mfr. Part No.
SEK3R3M200ST

Mouser Part No
598-SEK3R3M200ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 3.3uF 200V 20%

Datasheet

507In Stock

£0.661

£0.333

£0.276

£0.229

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

3.3 uF

20 %

200 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 47uF 16V 20%

SEK470M016ST
Knowles / Illinois Capacitor
1: £0.653
474In Stock

Mfr. Part No.
SEK470M016ST

Mouser Part No
598-SEK470M016ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 47uF 16V 20%

Datasheet

474In Stock

£0.653

£0.326

£0.287

£0.23

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

47 uF

20 %

16 VDC

Aluminium Electrolytic Capacitors - Radial Leaded 47uF 25V 20%

SEK470M025ST
Knowles / Illinois Capacitor
1: £0.615
1,192In Stock

Mfr. Part No.
SEK470M025ST

Mouser Part No
598-SEK470M025ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 47uF 25V 20%

Datasheet

1,192In Stock

£0.615

£0.414

£0.282

£0.23

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

47 uF

20 %

25 VDC

SEK Series Capacitors

Types of Capacitors

Customer Service Office

Company

Resources

Support

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
1 mF
2.2 mF
3.3 mF