.hide-partial { max-height: none; } .show-more { display: none; }

SF Series Motor Start Capacitors & Motor Run Capacitors

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 115

Applied Filters:

Series = SF

Capacitance

Voltage Rating AC

Length / Height

Width

Depth / Thickness

Lead Spacing

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Motor Start Capacitors & Motor Run Capacitors 10uF 660V

SFC66T10K291B-F
Knowles / Illinois Capacitor
1: $44.71
45In Stock

Mfr. Part #
SFC66T10K291B-F

Mouser Part #
598-SFC66T10K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 10uF 660V

Datasheet

45In Stock

$44.71

$37.65

$33.97

$30.71

View

Min.: 1
Mult.: 1

Motor Run Capacitors

10 uF

660 VAC

Quick Connect

60000 Hour

73.91 mm

48.51 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 12uF 660V

SFC66T12K391B-F
Knowles / Illinois Capacitor
1: $64.65
6In Stock
30Expected 8/12/2026

Mfr. Part #
SFC66T12K391B-F

Mouser Part #
598-SFC66T12K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 12uF 660V

Datasheet

6In Stock

30Expected 8/12/2026

$64.65

$54.61

$46.19

Min.: 1
Mult.: 1

Motor Run Capacitors

12 uF

660 VAC

Quick Connect

60000 Hour

99.31 mm

73.91 mm

48.51 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 15uF 660V

SFC66T15K391B-F
Knowles / Illinois Capacitor
1: $62.01
12In Stock

Mfr. Part #
SFC66T15K391B-F

Mouser Part #
598-SFC66T15K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 15uF 660V

Datasheet

12In Stock

$62.01

$51.10

$48.50

$44.92

View

Min.: 1
Mult.: 1

Motor Run Capacitors

15 uF

660 VAC

Quick Connect

60000 Hour

99.31 mm

73.91 mm

48.51 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 18uF 660V

SFC66T18K391B-F
Knowles / Illinois Capacitor
1: $72.75
27In Stock

Mfr. Part #
SFC66T18K391B-F

Mouser Part #
598-SFC66T18K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 18uF 660V

Datasheet

27In Stock

$72.75

$57.63

$55.99

$54.65

Min.: 1
Mult.: 1

Motor Run Capacitors

18 uF

660 VAC

Quick Connect

60000 Hour

99.31 mm

73.91 mm

48.51 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 25uF 660V

SFD66T25K391B-F
Knowles / Illinois Capacitor
1: $90.86
5In Stock
200On Order

Mfr. Part #
SFD66T25K391B-F

Mouser Part #
598-SFD66T25K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 25uF 660V

Datasheet

5In Stock

200On Order

$90.86

$80.24

$76.23

$65.27

View

Min.: 1
Mult.: 1

Motor Run Capacitors

25 uF

660 VAC

Quick Connect

60000 Hour

99.31 mm

92.96 mm

50.04 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 12.5uF 370V

SFP37T12.5K238B-F
Knowles / Illinois Capacitor
1: $31.50
13In Stock

Mfr. Part #
SFP37T12.5K238B-F

Mouser Part #
598-SFP37T12.5K238BF

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 12.5uF 370V

Datasheet

13In Stock

$31.50

$25.22

$22.00

$21.03

$19.84

Min.: 1
Mult.: 1

Motor Run Capacitors

12.5 uF

370 VAC

Quick Connect

60000 Hour

60.45 mm

47.5 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 30uF 370V

SFP37T30K284B-F
Knowles / Illinois Capacitor
1: $59.49
5In Stock

Mfr. Part #
SFP37T30K284B-F

Mouser Part #
598-SFP37T30K284B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 30uF 370V

Datasheet

5In Stock

$59.49

$47.75

$39.01

$38.30

Min.: 1
Mult.: 1

Motor Run Capacitors

30 uF

370 VAC

Quick Connect

60000 Hour

72.14 mm

47.5 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 20uF 440V

SFP44T20K284B-F
Knowles / Illinois Capacitor
1: $44.10
49In Stock

Mfr. Part #
SFP44T20K284B-F

Mouser Part #
598-SFP44T20K284B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 20uF 440V

Datasheet

49In Stock

$44.10

$34.16

$31.21

$28.73

$26.83

Min.: 1
Mult.: 1

Motor Run Capacitors

20 uF

440 VAC

Quick Connect

60000 Hour

72.14 mm

47.5 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 50uF 370V

SFS37T50K384B-F
Knowles / Illinois Capacitor
1: $62.13
25In Stock

Mfr. Part #
SFS37T50K384B-F

Mouser Part #
598-SFS37T50K384B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 50uF 370V

Datasheet

25In Stock

$62.13

$49.49

$49.48

$45.47

View

Min.: 1
Mult.: 1

Motor Run Capacitors

50 uF

370 VAC

Quick Connect

60000 Hour

97.54 mm

53.85 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 35uF 440V

SFT44T35K291B-F
Knowles / Illinois Capacitor
1: $71.67
15In Stock

Mfr. Part #
SFT44T35K291B-F

Mouser Part #
598-SFT44T35K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 35uF 440V

Datasheet

15In Stock

$71.67

$56.06

$56.04

$52.69

View

Min.: 1
Mult.: 1

Motor Run Capacitors

35 uF

440 VAC

Quick Connect

60000 Hour

73.91 mm

66.55 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 40uF 10% 660V 4.75 2 1/2 Round

SFT66T40K475B-F
Knowles / Illinois Capacitor
1: $43.75
21In Stock

Mfr. Part #
SFT66T40K475B-F

Mouser Part #
598-SFT66T40K475B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 40uF 10% 660V 4.75 2 1/2 Round

Datasheet

21In Stock

$43.75

$40.33

View

Min.: 1
Mult.: 1

Motor Run Capacitors

40 uF

660 VAC

Quick Connect

60000 Hour

120.65 mm

66.55 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 5uF 370V

SFP37T5K238B-F
Knowles / Illinois Capacitor
1: $28.21
46In Stock

Mfr. Part #
SFP37T5K238B-F

Mouser Part #
598-SFP37T5K238B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 5uF 370V

Datasheet

46In Stock

$28.21

$21.58

$19.29

$17.46

View

Min.: 1
Mult.: 1

Motor Run Capacitors

5 uF

370 VAC

Quick Connect

60000 Hour

60.45 mm

47.5 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 10uF 370V

SFA37T10K288B-F
Knowles / Illinois Capacitor
1: $40.47
150On Order

Mfr. Part #
SFA37T10K288B-F

Mouser Part #
598-SFA37T10K288B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 10uF 370V

Datasheet

150On Order

$40.47

$31.37

$26.75

$20.76

View

Min.: 1
Mult.: 1

Motor Run Capacitors

10 uF

370 VAC

Quick Connect

60000 Hour

73.15 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 10uF 660V

SFA66T10K475B-F
Knowles / Illinois Capacitor
1: $44.64
62Expected 11/16/2026

Mfr. Part #
SFA66T10K475B-F

Mouser Part #
598-SFA66T10K475B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 10uF 660V

Datasheet

62Expected 11/16/2026

$44.64

$36.57

$32.99

$32.05

View

Min.: 1
Mult.: 1

Motor Run Capacitors

10 uF

660 VAC

Quick Connect

60000 Hour

120.65 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 40uF 660V

SFD66T40K475B-F
Knowles / Illinois Capacitor
1: $100.49
23Expected 10/19/2026

Mfr. Part #
SFD66T40K475B-F

Mouser Part #
598-SFD66T40K475B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 40uF 660V

Datasheet

23Expected 10/19/2026

$100.49

$97.92

$88.31

$88.28

Min.: 1
Mult.: 1

Motor Run Capacitors

40 uF

660 VAC

Quick Connect

60000 Hour

120.65 mm

92.96 mm

50.04 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 55uF 5% 660V

SFT66C55J572J-F
Knowles / Illinois Capacitor
1: $64.53
45Expected 11/16/2026

Mfr. Part #
SFT66C55J572J-F

Mouser Part #
598-SFT66C55J572J-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 55uF 5% 660V

Datasheet

45Expected 11/16/2026

$64.53

$47.13

View

Min.: 1
Mult.: 1

Motor Run Capacitors

55 uF

660 VAC

Quick Connect

60000 Hour

145.288 mm

66.55 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 20uF 660V 10%

SFT66T20K391B-F
Knowles / Illinois Capacitor
1: $33.94
196Expected 8/17/2026

Mfr. Part #
SFT66T20K391B-F

Mouser Part #
598-SFT66T20K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 20uF 660V 10%

Datasheet

196Expected 8/17/2026

$33.94

$29.84

$28.39

$28.12

View

Min.: 1
Mult.: 1

Motor Run Capacitors

20 uF

660 VAC

Quick Connect

60000 Hour

99.31 mm

66.55 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 4uF 370V

SFA37T4K219B-F
Knowles / Illinois Capacitor
1: $22.95
15Expected 9/16/2026

Mfr. Part #
SFA37T4K219B-F

Mouser Part #
598-SFA37T4K219B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 4uF 370V

Datasheet

15Expected 9/16/2026

$22.95

$17.25

$15.91

$15.33

View

Min.: 1
Mult.: 1

Motor Run Capacitors

4 uF

370 VAC

Quick Connect

60000 Hour

55.63 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 370V 5uF

SFA37T5K219B-F
Knowles / Illinois Capacitor
1: $26.70
58Expected 12/7/2026

Mfr. Part #
SFA37T5K219B-F

Mouser Part #
598-SFA37T5K219B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 370V 5uF

Datasheet

58Expected 12/7/2026

$26.70

$20.16

$17.25

$16.51

View

Min.: 1
Mult.: 1

Motor Run Capacitors

5 uF

370 VAC

Quick Connect

60000 Hour

55.63 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 660V 1uF

SFA66T1K156B-F
Knowles / Illinois Capacitor
1: $29.50
44On Order

Mfr. Part #
SFA66T1K156B-F

Mouser Part #
598-SFA66T1K156B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 660V 1uF

Datasheet

44On Order

$29.50

$23.41

$21.13

$19.94

View

Min.: 1
Mult.: 1

Motor Run Capacitors

1 uF

660 VAC

Quick Connect

60000 Hour

39.62 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 5uF 660V

SFA66T5K388B-F
Knowles / Illinois Capacitor
1: $44.68
20Expected 11/23/2026

Mfr. Part #
SFA66T5K388B-F

Mouser Part #
598-SFA66T5K388B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 5uF 660V

Datasheet

20Expected 11/23/2026

$44.68

$33.85

$31.21

Min.: 1
Mult.: 1

Motor Run Capacitors

5 uF

660 VAC

Quick Connect

60000 Hour

98.55 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 6uF 660V

SFA66T6K388B-F
Knowles / Illinois Capacitor
1: $45.75
55On Order

Mfr. Part #
SFA66T6K388B-F

Mouser Part #
598-SFA66T6K388B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 6uF 660V

Datasheet

55On Order

$45.75

$37.43

$32.71

$30.93

View

Min.: 1
Mult.: 1

Motor Run Capacitors

6 uF

660 VAC

Quick Connect

60000 Hour

98.55 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 8uF 660V

SFA66T8K475B-F
Knowles / Illinois Capacitor
1: $62.95
33On Order

Mfr. Part #
SFA66T8K475B-F

Mouser Part #
598-SFA66T8K475B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 8uF 660V

Datasheet

33On Order

$62.95

$52.27

$43.21

$38.21

View

Min.: 1
Mult.: 1

Motor Run Capacitors

8 uF

660 VAC

Quick Connect

60000 Hour

120.65 mm

54.86 mm

33.27 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 30uF 370V

SFC37T30K291B-F
Knowles / Illinois Capacitor
1: $48.13
40Expected 12/7/2026

Mfr. Part #
SFC37T30K291B-F

Mouser Part #
598-SFC37T30K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 30uF 370V

Datasheet

40Expected 12/7/2026

$48.13

$37.91

Min.: 1
Mult.: 1

Motor Run Capacitors

30 uF

370 VAC

Quick Connect

60000 Hour

73.91 mm

48.51 mm

20.57 mm

- 40 C

+ 70 C

Bulk

Motor Start Capacitors & Motor Run Capacitors 30uF 440V

SFS44T30K291B-F
Knowles / Illinois Capacitor
1: $66.38
35Expected 8/24/2026

Mfr. Part #
SFS44T30K291B-F

Mouser Part #
598-SFS44T30K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 30uF 440V

Datasheet

35Expected 8/24/2026

$66.38

$47.70

$46.83

$44.80

View

Min.: 1
Mult.: 1

Motor Run Capacitors

30 uF

440 VAC

Quick Connect

60000 Hour

73.91 mm

53.85 mm

20.57 mm

- 40 C

+ 70 C

Bulk

SF Series Motor Start Capacitors & Motor Run Capacitors

Customer Service Office

Company

Resources

Support

1 uF
2 uF
3 uF
4 uF
5 uF
6 uF
7.5 uF
8 uF
10 uF
12 uF
12.5 uF
15 uF
17.5 uF
18 uF
20 uF
25 uF
30 uF
35 uF
40 uF
45 uF