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SF Series Motor Start Capacitors & Motor Run Capacitors

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Part #

Motor Start Capacitors & Motor Run Capacitors 2uF 660V

SFA66T2K219B-F
Knowles / Illinois Capacitor
1: $11.42
8In Stock
63Expected 2026/06/01

Mfr. Part No.
SFA66T2K219B-F

Mouser Part No
598-SFA66T2K219B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 2uF 660V

Datasheet

8In Stock

63Expected 2026/06/01

$11.42

$10.06

Min.: 1
Mult.: 1

Motor Run Capacitors

2 uF

660 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 5uF 660V

SFA66T5K388B-F
Knowles / Illinois Capacitor
1: $36.47
4In Stock

Mfr. Part No.
SFA66T5K388B-F

Mouser Part No
598-SFA66T5K388B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 5uF 660V

Datasheet

4In Stock

$36.47

$26.17

$23.34

Quote

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 20uF 370V

SFC37T20K291B-F
Knowles / Illinois Capacitor
1: $40.61
1In Stock

Mfr. Part No.
SFC37T20K291B-F

Mouser Part No
598-SFC37T20K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 20uF 370V

Datasheet

1In Stock

$40.61

$33.37

$28.32

$28.27

Min.: 1
Mult.: 1

Motor Run Capacitors

20 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 25uF 370V

SFC37T25K291B-F
Knowles / Illinois Capacitor
1: $27.13
56In Stock

Mfr. Part No.
SFC37T25K291B-F

Mouser Part No
598-SFC37T25K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 25uF 370V

Datasheet

56In Stock

$27.13

$23.00

$21.76

$19.75

Min.: 1
Mult.: 1

Motor Run Capacitors

25 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 12uF 660V

SFC66T12K391B-F
Knowles / Illinois Capacitor
1: $48.97
10In Stock

Mfr. Part No.
SFC66T12K391B-F

Mouser Part No
598-SFC66T12K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 12uF 660V

Datasheet

10In Stock

$48.97

$41.15

$38.09

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: $56.18
18In Stock

Mfr. Part No.
SFC66T15K391B-F

Mouser Part No
598-SFC66T15K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 15uF 660V

Datasheet

18In Stock

$56.18

$45.37

$40.38

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 20uF 660V

SFD66T20K391B-F
Knowles / Illinois Capacitor
1: $75.55
2In Stock

Mfr. Part No.
SFD66T20K391B-F

Mouser Part No
598-SFD66T20K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 20uF 660V

Datasheet

2In Stock

$75.55

$67.52

$58.74

Min.: 1
Mult.: 1

Motor Run Capacitors

20 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 40uF 660V

SFD66T40K475B-F
Knowles / Illinois Capacitor
1: $77.32
1In Stock
24Expected 2026/10/02

Mfr. Part No.
SFD66T40K475B-F

Mouser Part No
598-SFD66T40K475B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 40uF 660V

Datasheet

1In Stock

24Expected 2026/10/02

$77.32

$75.34

$67.94

$67.92

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 12.5uF 370V

SFP37T12.5K238B-F
Knowles / Illinois Capacitor
1: $23.64
23In Stock

Mfr. Part No.
SFP37T12.5K238B-F

Mouser Part No
598-SFP37T12.5K238BF

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 12.5uF 370V

Datasheet

23In Stock

$23.64

$18.97

$16.64

$16.12

$15.50

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: $45.76
6In Stock

Mfr. Part No.
SFP37T30K284B-F

Mouser Part No
598-SFP37T30K284B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 30uF 370V

Datasheet

6In Stock

$45.76

$36.96

$31.40

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: $25.90
51In Stock

Mfr. Part No.
SFP44T20K284B-F

Mouser Part No
598-SFP44T20K284B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 20uF 440V

Datasheet

51In Stock

$25.90

$20.88

$18.81

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 35uF 440V

SFT44T35K291B-F
Knowles / Illinois Capacitor
1: $42.83
16In Stock

Mfr. Part No.
SFT44T35K291B-F

Mouser Part No
598-SFT44T35K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 35uF 440V

Datasheet

16In Stock

$42.83

$33.70

$33.66

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: $33.66
32In Stock

Mfr. Part No.
SFT66T40K475B-F

Mouser Part No
598-SFT66T40K475B-F

Knowles / Illinois Capacitor

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

Datasheet

32In Stock

$33.66

$31.03

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 40uF 370V

SFC37T40K391B-F
Knowles / Illinois Capacitor
1: $47.72
5In Stock

Mfr. Part No.
SFC37T40K391B-F

Mouser Part No
598-SFC37T40K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 40uF 370V

Datasheet

5In Stock

$47.72

$37.38

$36.26

$35.33

View

Min.: 1
Mult.: 1

Motor Run Capacitors

40 uF

370 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 5uF 370V

SFP37T5K238B-F
Knowles / Illinois Capacitor
1: $21.72
46In Stock

Mfr. Part No.
SFP37T5K238B-F

Mouser Part No
598-SFP37T5K238B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 5uF 370V

Datasheet

46In Stock

$21.72

$16.62

$13.68

$12.14

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 30uF 660V

SFD66T30K391B-F
Knowles / Illinois Capacitor
1: $44.74
465On Order

Mfr. Part No.
SFD66T30K391B-F

Mouser Part No
598-SFD66T30K391B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 30uF 660V

Datasheet

465On Order

$44.74

Min.: 1
Mult.: 1

Motor Run Capacitors

30 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 35uF 660V

SFD66T35K475B-F
Knowles / Illinois Capacitor
1: $104.88
24Expected 2026/06/08

Mfr. Part No.
SFD66T35K475B-F

Mouser Part No
598-SFD66T35K475B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 35uF 660V

Datasheet

24Expected 2026/06/08

$104.88

$58.27

$58.18

$58.15

Min.: 1
Mult.: 1

Motor Run Capacitors

35 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

SFD66T50K475B-F
Knowles / Illinois Capacitor
1: $48.87
48Expected 2026/10/05
New At Mouser

Mfr. Part No.
SFD66T50K475B-F

Mouser Part No
598-SFD66T50K475B-F

New At Mouser

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors

Datasheet

48Expected 2026/10/05

$48.87

$38.23

View

Min.: 1
Mult.: 1

Motor Run Capacitors

50 uF

660 VAC

Quick Connect

60000 Hour

120.65 mm

92.96 mm

50.04 mm

20.57 mm

- 40 C

+ 70 C

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

SFT66T20K391B-F
Knowles / Illinois Capacitor
1: $26.11
196Expected 2026/08/17

Mfr. Part No.
SFT66T20K391B-F

Mouser Part No
598-SFT66T20K391B-F

Knowles / Illinois Capacitor

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

Datasheet

196Expected 2026/08/17

$26.11

$22.96

$21.84

$21.63

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 15uF 370V

SFA37T15K288B-F
Knowles / Illinois Capacitor
1: $33.48
10Expected 2026/07/27

Mfr. Part No.
SFA37T15K288B-F

Mouser Part No
598-SFA37T15K288B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 15uF 370V

Datasheet

10Expected 2026/07/27

$33.48

$27.45

$25.03

$23.60

Min.: 1
Mult.: 1

Motor Run Capacitors

15 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 4uF 370V

SFA37T4K219B-F
Knowles / Illinois Capacitor
1: $19.86
17Expected 2026/10/08

Mfr. Part No.
SFA37T4K219B-F

Mouser Part No
598-SFA37T4K219B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 4uF 370V

Datasheet

17Expected 2026/10/08

$19.86

$15.20

$12.25

$11.42

$10.36

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 1uF 660V

SFA66T1K219B-F
Knowles / Illinois Capacitor
1: $16.85
62Expected 2026/07/06

Mfr. Part No.
SFA66T1K219B-F

Mouser Part No
598-SFA66T1K219B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 1uF 660V

Datasheet

62Expected 2026/07/06

$16.85

$13.23

$11.62

$10.90

$9.79

Min.: 1
Mult.: 1

Motor Run Capacitors

1 uF

660 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 6uF 660V

SFA66T6K388B-F
Knowles / Illinois Capacitor
1: $35.19
55On Order

Mfr. Part No.
SFA66T6K388B-F

Mouser Part No
598-SFA66T6K388B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 6uF 660V

Datasheet

55On Order

$35.19

$24.57

$23.23

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: $45.23
33On Order

Mfr. Part No.
SFA66T8K475B-F

Mouser Part No
598-SFA66T8K475B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 8uF 660V

Datasheet

33On Order

$45.23

$37.06

$32.60

$31.34

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 10uF 660V

SFC66T10K291B-F
Knowles / Illinois Capacitor
1: $35.30
45Expected 2026/07/06

Mfr. Part No.
SFC66T10K291B-F

Mouser Part No
598-SFC66T10K291B-F

Knowles / Illinois Capacitor

Motor Start Capacitors & Motor Run Capacitors 10uF 660V

Datasheet

45Expected 2026/07/06

$35.30

$28.97

$26.13

$25.40

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

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