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SEK Series Capacitors

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Part #

Aluminum Electrolytic Capacitors - Radial Leaded 35V 220uF 10X13

SEK221M035ST
Knowles / Illinois Capacitor
1: $1.483
7.446In Stock

Mfr. Part #
SEK221M035ST

Mouser Part #
539-SEK35V220

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 35V 220uF 10X13

Datasheet

7.446In Stock

$1.483

$778

$615

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

35 VDC

Aluminum Electrolytic Capacitors - Radial Leaded ALUM 35V 330uF

SEK331M035ST
Knowles / Illinois Capacitor
1: $1.388
4.610In Stock

Mfr. Part #
SEK331M035ST

Mouser Part #
539-SEK35V330

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded ALUM 35V 330uF

Datasheet

4.610In Stock

$1.388

$931

$711

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

35 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 35V RADIAL

SEK101M035ST
Knowles / Illinois Capacitor
1: $883
9.536In Stock

Mfr. Part #
SEK101M035ST

Mouser Part #
539-SEK35V100

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 35V RADIAL

Datasheet

9.536In Stock

$883

$480

$422

$321

$299

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

35 VDC

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

SEK4R7M200ST
Knowles / Illinois Capacitor
1: $799
3.892In Stock

Mfr. Part #
SEK4R7M200ST

Mouser Part #
598-SEK4R7M200ST

Knowles / Illinois Capacitor

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

Datasheet

3.892In Stock

$799

$538

$367

$299

$277

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

4.7 uF

20 %

200 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 400V 22uF RADIAL

SEK220M400ST
Knowles / Illinois Capacitor
1: $2.345
6.100In Stock

Mfr. Part #
SEK220M400ST

Mouser Part #
539-SEK400V22

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 400V 22uF RADIAL

Datasheet

6.100In Stock

$2.345

$1.651

$1.420

$1.230

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

400 VDC

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

SEK470M100ST
Knowles / Illinois Capacitor
1: $1.178
3.537In Stock

Mfr. Part #
SEK470M100ST

Mouser Part #
598-SEK470M100ST

Knowles / Illinois Capacitor

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

Datasheet

3.537In Stock

$1.178

$644

$529

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

47 uF

20 %

100 VDC

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

SEK472M035ST
Knowles / Illinois Capacitor
1: $7.004
1.983In Stock

Mfr. Part #
SEK472M035ST

Mouser Part #
539-SEK35V4700

Knowles / Illinois Capacitor

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

Datasheet

1.983In Stock

$7.004

$5.164

$4.291

$3.639

$3.450

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

4700 uF

20 %

35 VDC

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

SEK222M035ST
Knowles / Illinois Capacitor
1: $3.292
959In Stock

Mfr. Part #
SEK222M035ST

Mouser Part #
598-SEK222M035ST

Knowles / Illinois Capacitor

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

Datasheet

959In Stock

$3.292

$2.387

$1.935

$1.777

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

2200 uF

20 %

35 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 330uF 25V

SEK331M025ST
Knowles / Illinois Capacitor
1: $1.525
3.430In Stock

Mfr. Part #
SEK331M025ST

Mouser Part #
598-SEK331M025ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 330uF 25V

Datasheet

3.430In Stock

$1.525

$918

$704

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

330 uF

20 %

25 VDC

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

SEK3R3M050ST
Knowles / Illinois Capacitor
1: $684
1.250In Stock

Mfr. Part #
SEK3R3M050ST

Mouser Part #
539-SEK50V3.3

Knowles / Illinois Capacitor

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

Datasheet

1.250In Stock

$684

$454

$283

$236

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

3.3 uF

20 %

50 VDC

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

SEK221M100ST
Knowles / Illinois Capacitor
1: $3.628
820In Stock

Mfr. Part #
SEK221M100ST

Mouser Part #
598-SEK221M100ST

Knowles / Illinois Capacitor

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

Datasheet

820In Stock

$3.628

$2.692

$2.335

$2.051

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

220 uF

20 %

100 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 1000uF 10V

SEK102M010ST
Knowles / Illinois Capacitor
1: $1.662
1.623In Stock

Mfr. Part #
SEK102M010ST

Mouser Part #
598-SEK102M010ST

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 1000uF 10V

Datasheet

1.623In Stock

$1.662

$1.157

$853

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

1000 uF

20 %

10 VDC

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

SEK472M016ST
Knowles / Illinois Capacitor
1: $4.480
736In Stock

Mfr. Part #
SEK472M016ST

Mouser Part #
598-SEK472M016ST

Knowles / Illinois Capacitor

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

Datasheet

736In Stock

$4.480

$3.229

$2.797

$2.471

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

4700 uF

20 %

16 VDC

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

25SEK120M
Panasonic Industry
1: $1.840
469In Stock
NRND

Mfr. Part #
25SEK120M

Mouser Part #
667-25SEK120M

NRND

Panasonic Industry

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

Learn More

Datasheet

469In Stock

$1.840

$1.252

$981

$819

Min.: 1
Mult.: 1
Max.: 200

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

120 uF

20 %

25 VDC

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

35SEK180M
Panasonic Industry
1: $2.240
231In Stock
NRND

Mfr. Part #
35SEK180M

Mouser Part #
667-35SEK180M

NRND

Panasonic Industry

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

Learn More

Datasheet

231In Stock

$2.240

$1.483

$1.167

$972

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

180 uF

20 %

35 VDC

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

35SEK47M
Panasonic Industry
1: $1.599
3.274In Stock
NRND

Mfr. Part #
35SEK47M

Mouser Part #
667-35SEK47M

NRND

Panasonic Industry

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

Learn More

Datasheet

3.274In Stock

$1.599

$858

$779

$642

Min.: 1
Mult.: 1
Max.: 500

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

47 uF

20 %

35 VDC

Aluminum Organic Polymer Capacitors 50V 68uF 25mOhms SMD 8x12mm

50SEK68M
Panasonic Industry
1: $2.209
266In Stock
NRND

Mfr. Part #
50SEK68M

Mouser Part #
667-50SEK68M

NRND

Panasonic Industry

Aluminum Organic Polymer Capacitors 50V 68uF 25mOhms SMD 8x12mm

Learn More

Datasheet

266In Stock

$2.209

$1.483

$1.167

$972

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

68 uF

20 %

50 VDC

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

25SEK270M
Panasonic Industry
1: $2.209
614In Stock
NRND

Mfr. Part #
25SEK270M

Mouser Part #
667-25SEK270M

NRND

Panasonic Industry

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

Learn More

Datasheet

614In Stock

$2.209

$1.483

$1.167

$972

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

270 uF

20 %

25 VDC

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

25SEK470M
Panasonic Industry
1: $2.755
19In Stock
800On Order
NRND

Mfr. Part #
25SEK470M

Mouser Part #
667-25SEK470M

NRND

Panasonic Industry

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

Learn More

Datasheet

19In Stock

800On Order

$2.755

$1.851

$1.588

$1.399

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

470 uF

20 %

25 VDC

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

35SEK330M
Panasonic Industry
1: $2.619
45In Stock
1.000On Order
NRND

Mfr. Part #
35SEK330M

Mouser Part #
667-35SEK330M

NRND

Panasonic Industry

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

Learn More

Datasheet

45In Stock

1.000On Order

$2.619

$1.851

$1.588

$1.399

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

330 uF

20 %

35 VDC

Aluminum Organic Polymer Capacitors 50V 120uF 20mOhms SMD 10x13mm

50SEK120M
Panasonic Industry
1: $2.619
468In Stock
400Expected 6/10/2027
NRND

Mfr. Part #
50SEK120M

Mouser Part #
667-50SEK120M

NRND

Panasonic Industry

Aluminum Organic Polymer Capacitors 50V 120uF 20mOhms SMD 10x13mm

Learn More

Datasheet

468In Stock

400Expected 6/10/2027

$2.619

$1.851

$1.535

$1.304

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

120 uF

20 %

50 VDC

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

50SEK22M
Panasonic Industry
1: $1.725
140In Stock
1.000Expected 9/10/2026
NRND

Mfr. Part #
50SEK22M

Mouser Part #
667-50SEK22M

NRND

Panasonic Industry

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

Learn More

Datasheet

140In Stock

1.000Expected 9/10/2026

$1.725

$1.115

$892

$720

$638

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

22 uF

20 %

50 VDC

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

50SEK33M
Panasonic Industry
1: $1.977
8In Stock
1.000Expected 11/2/2026
NRND

Mfr. Part #
50SEK33M

Mouser Part #
667-50SEK33M

NRND

Panasonic Industry

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

Learn More

Datasheet

8In Stock

1.000Expected 11/2/2026

$1.977

$1.294

$1.083

$918

Min.: 1
Mult.: 1

Electrolytic Capacitors

Aluminum Polymer Capacitors

Radial

33 uF

20 %

50 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 25V 22uF ELEC RADL

SEK220M025ST
Knowles / Illinois Capacitor
1: $652
11.883In Stock

Mfr. Part #
SEK220M025ST

Mouser Part #
539-SEK25V22

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 25V 22uF ELEC RADL

Datasheet

11.883In Stock

$652

$303

$270

$212

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

22 uF

20 %

25 VDC

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 50V RAD

SEK101M050ST
Knowles / Illinois Capacitor
1: $1.273
4.149In Stock

Mfr. Part #
SEK101M050ST

Mouser Part #
539-SEK50V100

Knowles / Illinois Capacitor

Aluminum Electrolytic Capacitors - Radial Leaded 100uF 50V RAD

Datasheet

4.149In Stock

$1.273

$867

$631

$523

View

Min.: 1
Mult.: 1

Electrolytic Capacitors

General Purpose Electrolytic Capacitors

Radial

100 uF

20 %

50 VDC

SEK Series Capacitors

Types of Capacitors

Customer Service Office

Company

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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
1000 uF
2200 uF
3300 uF