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SEK Series Capacitors

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Part #

Aluminum Electrolytic Capacitors - Radial Leaded 330uF 50V RAD

SEK331M050ST
Knowles / Illinois Capacitor
1: $2.209
12.149In Stock

Mfr. Part #
SEK331M050ST

Mouser Part #
539-SEK50V330

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 330uF 50V RAD

Datasheet

12.149In Stock

$2.209

$1.493

$1.178

$981

$873

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

50 VDC

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

SEK221M025ST
Knowles / Illinois Capacitor
1: $1.283
606In Stock

Mfr. Part #
SEK221M025ST

Mouser Part #
539-SEK25V220

Knowles / Illinois Capacitor

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

Datasheet

606In Stock

$1.283

$1.252

$1.241

$694

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

25 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 25V 470uF RADIAL

SEK471M025ST
Knowles / Illinois Capacitor
1: $3.523
423In Stock

Mfr. Part #
SEK471M025ST

Mouser Part #
539-SEK25V470

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 25V 470uF RADIAL

Datasheet

423In Stock

$3.523

$2.335

$1.883

$1.599

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

470 uF

20 %

25 VDC

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

SEK102M035ST
Knowles / Illinois Capacitor
1: $3.628
204In Stock

Mfr. Part #
SEK102M035ST

Mouser Part #
539-SEK35V1000

Knowles / Illinois Capacitor

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

Datasheet

204In Stock

$3.628

$2.692

$2.503

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 mF

20 %

35 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 470uF 35V

SEK471M035ST
Knowles / Illinois Capacitor
1: $2.629
30In Stock

Mfr. Part #
SEK471M035ST

Mouser Part #
539-SEK471M035ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 470uF 35V

Datasheet

30In Stock

$2.629

$2.261

$1.399

$1.241

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

470 uF

20 %

35 VDC

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

SEK100M050ST
Knowles / Illinois Capacitor
1: $936
4.984In Stock
5.000Expected 10/21/2026

Mfr. Part #
SEK100M050ST

Mouser Part #
539-SEK50V10

Knowles / Illinois Capacitor

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

Datasheet

4.984In Stock

5.000Expected 10/21/2026

$936

$480

$422

$346

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

10 uF

20 %

50 VDC

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

SEK220M050ST
Knowles / Illinois Capacitor
1: $831
4.048In Stock
2.000Expected 12/23/2026

Mfr. Part #
SEK220M050ST

Mouser Part #
539-SEK50V22

Knowles / Illinois Capacitor

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

Datasheet

4.048In Stock

2.000Expected 12/23/2026

$831

$406

$364

$290

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

50 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 1uF 50V

SEK010M050ST
Knowles / Illinois Capacitor
1: $873
4.244In Stock
10.000Expected 1/11/2027

Mfr. Part #
SEK010M050ST

Mouser Part #
598-SEK010M050ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 1uF 50V

Datasheet

4.244In Stock

10.000Expected 1/11/2027

$873

$420

$377

$301

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 uF

20 %

50 VDC

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

SEK010M200ST
Knowles / Illinois Capacitor
1: $684
360In Stock

Mfr. Part #
SEK010M200ST

Mouser Part #
598-SEK010M200ST

Knowles / Illinois Capacitor

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

Datasheet

360In Stock

$684

$321

$283

$226

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 uF

20 %

200 VDC

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

SEK100M025ST
Knowles / Illinois Capacitor
1: $515
2.070In Stock

Mfr. Part #
SEK100M025ST

Mouser Part #
598-SEK100M025ST

Knowles / Illinois Capacitor

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

Datasheet

2.070In Stock

$515

$243

$213

$168

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

10 uF

20 %

25 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 16V

SEK101M016ST
Knowles / Illinois Capacitor
1: $957
357In Stock

Mfr. Part #
SEK101M016ST

Mouser Part #
598-SEK101M016ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 16V

Datasheet

357In Stock

$957

$467

$420

$337

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

16 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 25V

SEK101M025ST
Knowles / Illinois Capacitor
1: $1.567
561In Stock

Mfr. Part #
SEK101M025ST

Mouser Part #
598-SEK101M025ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 25V

Datasheet

561In Stock

$1.567

$770

$640

$537

$508

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

25 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 63V

SEK101M063ST
Knowles / Illinois Capacitor
1: $1.609
2.585In Stock

Mfr. Part #
SEK101M063ST

Mouser Part #
598-SEK101M063ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 63V

Datasheet

2.585In Stock

$1.609

$1.115

$828

$692

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

63 VDC

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

SEK101M100ST
Knowles / Illinois Capacitor
1: $2.587
844In Stock

Mfr. Part #
SEK101M100ST

Mouser Part #
598-SEK101M100ST

Knowles / Illinois Capacitor

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

Datasheet

844In Stock

$2.587

$1.735

$1.367

$1.046

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

100 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 1000uF 50V

SEK102M050ST
Knowles / Illinois Capacitor
1: $5.879
195In Stock

Mfr. Part #
SEK102M050ST

Mouser Part #
598-SEK102M050ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 1000uF 50V

Datasheet

195In Stock

$5.879

$4.091

$3.429

$3.113

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1 mF

20 %

50 VDC

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

SEK220M063ST
Knowles / Illinois Capacitor
1: $557
1.379In Stock

Mfr. Part #
SEK220M063ST

Mouser Part #
598-SEK220M063ST

Knowles / Illinois Capacitor

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

Datasheet

1.379In Stock

$557

$263

$226

$171

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

63 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 22uF 100V

SEK220M100ST
Knowles / Illinois Capacitor
1: $1.346
1.595In Stock

Mfr. Part #
SEK220M100ST

Mouser Part #
598-SEK220M100ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 22uF 100V

Datasheet

1.595In Stock

$1.346

$671

$606

$466

$445

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

100 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 220uF 63V -40C +105C

SEK221M063ST
Knowles / Illinois Capacitor
1: $1.609
1.173In Stock

Mfr. Part #
SEK221M063ST

Mouser Part #
598-SEK221M063ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 220uF 63V -40C +105C

Datasheet

1.173In Stock

$1.609

$1.040

$662

$583

$553

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

63 VDC

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

SEK2R2M050ST
Knowles / Illinois Capacitor
1: $557
2.294In Stock

Mfr. Part #
SEK2R2M050ST

Mouser Part #
598-SEK2R2M050ST

Knowles / Illinois Capacitor

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

Datasheet

2.294In Stock

$557

$276

$238

$237

$219

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

2.2 uF

20 %

50 VDC

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

SEK2R2M100ST
Knowles / Illinois Capacitor
1: $536
88In Stock

Mfr. Part #
SEK2R2M100ST

Mouser Part #
598-SEK2R2M100ST

Knowles / Illinois Capacitor

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

Datasheet

88In Stock

$536

$294

$263

$210

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

2.2 uF

20 %

100 VDC

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

SEK330M035ST
Knowles / Illinois Capacitor
1: $547
6.595In Stock

Mfr. Part #
SEK330M035ST

Mouser Part #
598-SEK330M035ST

Knowles / Illinois Capacitor

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

Datasheet

6.595In Stock

$547

$329

$227

$202

$201

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

33 uF

20 %

35 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 330uF 16V

SEK331M016ST
Knowles / Illinois Capacitor
1: $1.378
280In Stock

Mfr. Part #
SEK331M016ST

Mouser Part #
598-SEK331M016ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 330uF 16V

Datasheet

280In Stock

$1.378

$881

$683

$542

$504

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

16 VDC

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

SEK3R3M200ST
Knowles / Illinois Capacitor
1: $925
507In Stock

Mfr. Part #
SEK3R3M200ST

Mouser Part #
598-SEK3R3M200ST

Knowles / Illinois Capacitor

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

Datasheet

507In Stock

$925

$467

$387

$321

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

3.3 uF

20 %

200 VDC

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

SEK470M016ST
Knowles / Illinois Capacitor
1: $915
474In Stock

Mfr. Part #
SEK470M016ST

Mouser Part #
598-SEK470M016ST

Knowles / Illinois Capacitor

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

Datasheet

474In Stock

$915

$456

$402

$323

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

47 uF

20 %

16 VDC

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

SEK470M025ST
Knowles / Illinois Capacitor
1: $862
1.192In Stock

Mfr. Part #
SEK470M025ST

Mouser Part #
598-SEK470M025ST

Knowles / Illinois Capacitor

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

Datasheet

1.192In Stock

$862

$579

$395

$323

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