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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: $2.86
12,179In Stock

Mfr. Part No.
SEK331M050ST

Mouser Part No
539-SEK50V330

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 50V RAD

Datasheet

12,179In Stock

$2.86

$1.93

$1.52

$1.27

$1.13

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: $1.66
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

$1.66

$1.62

$1.60

$0.898

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: $7.40
40In Stock
383Expected 25/8/2026

Mfr. Part No.
SEK471M025ST

Mouser Part No
539-SEK25V470

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 25V 470uF RADIAL

Datasheet

40In Stock

383Expected 25/8/2026

$7.40

$4.50

$3.93

$3.70

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: $4.69
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

$4.69

$3.48

$3.24

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: $8.54
30In Stock

Mfr. Part No.
SEK471M035ST

Mouser Part No
539-SEK471M035ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 470uF 35V

Datasheet

30In Stock

$8.54

$5.93

$4.75

$4.12

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: $1.12
5,509In 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

5,509In Stock

5,000Expected 21/10/2026

$1.12

$0.558

$0.499

$0.40

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: $0.734
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

$0.734

$0.46

$0.375

$0.321

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: $1.13
4,347In Stock
10,000Expected 11/1/2027

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 11/1/2027

$1.13

$0.543

$0.487

$0.389

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: $0.884
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

$0.884

$0.415

$0.366

$0.292

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: $0.666
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

$0.666

$0.314

$0.276

$0.218

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: $1.24
358In Stock

Mfr. Part No.
SEK101M016ST

Mouser Part No
598-SEK101M016ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 16V

Datasheet

358In Stock

$1.24

$0.604

$0.543

$0.435

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: $2.03
561In Stock

Mfr. Part No.
SEK101M025ST

Mouser Part No
598-SEK101M025ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 100uF 25V

Datasheet

561In Stock

$2.03

$0.996

$0.828

$0.695

$0.657

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: $2.08
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

$2.08

$1.44

$1.07

$0.895

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: $3.35
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

$3.35

$2.24

$1.77

$1.35

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: $7.40
195In Stock

Mfr. Part No.
SEK102M050ST

Mouser Part No
598-SEK102M050ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 50V

Datasheet

195In Stock

$7.40

$5.96

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: $0.721
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

$0.721

$0.34

$0.292

$0.222

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: $1.74
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

$1.74

$0.868

$0.783

$0.602

$0.575

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: $2.54
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

$2.54

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: $0.721
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

$0.721

$0.356

$0.307

$0.306

$0.283

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: $0.694
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

$0.694

$0.381

$0.34

$0.272

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: $0.694
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

$0.694

$0.457

$0.284

$0.238

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: $1.78
280In Stock

Mfr. Part No.
SEK331M016ST

Mouser Part No
598-SEK331M016ST

Knowles / Illinois Capacitor

Aluminium Electrolytic Capacitors - Radial Leaded 330uF 16V

Datasheet

280In Stock

$1.78

$1.14

$0.883

$0.70

$0.651

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: $1.20
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

$1.20

$0.604

$0.50

$0.415

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: $1.18
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

$1.18

$0.59

$0.52

$0.418

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: $1.12
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

$1.12

$0.749

$0.511

$0.418

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