Type SF Motor-Run and Power Supply Capacitors
Oil Filled/Impregnated, AC Rated, Metallized Polypropylene Capacitors
Highlights
♦
Self healing
♦
Fault Current Protection up to 10,000 amps AFC
♦
Low energy consumption
♦
4 - tine, 1/4" quick connect lug terminals are standard
♦
Meets EIA Standard EIA-456-A
♦
UL recognized File Number E71645
♦
CSA File Number 223507
Service Life Objective Capacitance vs. Temperature
The Capacitance vs. Temperature curve may be used to
determine the capacitance change as a function of
temperature. Capacitance varies by no more than ±3 % over
the operating temperature range.
The service life objective for this series is 60,000 hours of
operating life with a 94% survival rate when operated at full
voltage, 60 Hz, and rated ambient temperature. AC
capacitors are frequently used at voltages and ambient
temperatures other than rated conditions. Service life may
be estimated under specific conditions of temperature and
voltage by using the curves as shown below and to the right.
Specifications
Capacitance Range:
Voltage Range:
Capacitance Tolerance:
Temperature Range:
Dissipation Factor:
5.0 µF to 120.0 µF
240 Vac to 660 Vac
±10% standard, ± 6% and ±3% available
–40 ºC to 70 ºC standard, 90 º C available
<0.1%
Type SF, AC rated metallized polypropylene capacitors pro-
vide starting torque and power factor correction for split
phase motors typically used in refrigeration and air condi-
tioning motor-run applications. Type SF also may be used
to provide noise suppression, voltage regulation and line
current reduction in power supply applications.
Life vs. Temperature
100000
1000
10000
100
10
0
50 75 100 125
% of Rated Temperature
% of Rated Life
Life vs. Voltage
% of Rated Voltage
% of Rated Life
Capacitance vs. Temperature
–40 –20 020 40 60 80 100
–6
–4
0
–2
2
4
Temperature °C
Capacitance Change %
25
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830• www.cde.com
Type SF Motor-Run and Power Supply Capacitors
Type SF - Oval Case Style
Case Code A B H
A1.31 2.16 see table
C1.91 2.91 see table
D1.97 3.66 see table
Dimensions (Inches)
B ± .06
A ± .06
.81 ± .06
H + .12
- .06
.50 Max
Cap. Stock Catalog Case H
(µF) Items Part Number Code (inches)
4.0 SFA24S4K219B A 2.19
5.0 SFA24S5K219B A 2.19
6.0 SFA24S6K219B A 2.19
7.5 SFA24S7.5K219B A 2.19
10.0 SFA24S10K219B A 2.19
15.0 SFA24S15K263BA 2.63
20.0 SFA24S20K303B A 3.03
25.0 SFC24S25K269B C 2.69
30.0 SFC24S30K269B C 2.69
35.0 SFC24S35K269B C 2.69
40.0 SFC24S40K303B C 3.03
45.0 SFC24S45K303B C 3.03
50.0 SFC24S50K303B C 3.03
60.0 SFC24S60K388B C 3.88
70.0 SFC24S70K388B C 3.88
240 Vac Oval 70°C Case Temperature
Cap. Stock Catalog Case H
(µF) Items Part Number Code Inches
2.0 S SFA37S2K219B A 2.19
2.0 SFA37S2K156B A 1.56
3.0 S SFA37S3K219B A 2.19
3.0 SFA37S3K156B A 1.56
4.0 S SFA37S4K219B A 2.19
4.0 SFA37S4K156B A 1.56
5.0 S SFA37S5K219B A 2.19
5.0 SFA37S5K156B A 1.56
6.0 S SFA37S6K219B A 2.19
6.0 SFA37S6K156B A 1.56
7.5 S SFA37S7.5K219B A 2.19
7.5 SFA37S7.5K156B A 1.56
10.0 S SFA37S10K288B A 2.88
12.5 S SFA37S12.5K288B A 2.88
15.0 S SFA37S15K288B A 2.88
17.5 S SFC37S17.5K291B C 2.91
20.0 S SFC37S20K291B C 2.91
20.0 SFA37S20K375B A 3.75
25.0 S SFC37S25K291B C 2.91
30.0 S SFC37S30K291B C 2.91
35.0 S SFC37S35K291B C 2.91
40.0 S SFC37S40K391B C 3.91
45.0 S SFC37S45K391B C 3.91
50.0 S SFC37S50K391B C 3.91
50.0 S SFD37S50K391B D 3.91
2.0 S SFA44S2K203B A 2.03
2.0 SFA44S2K156B A 1.56
3.0 S SFA44S3K209B A 2.09
3.0 SFA44S3K156B A 1.56
4.0 S SFA44S4K209B A 2.09
4.0 SFA44S4K156B A 1.56
5.0 S SFA44S5K219B A 2.19
6.0 S SFA44S6K288B A 2.88
7.5 S SFA44S7.5K288B A 2.88
10.0 S SFA44S10K375B A 3.75
12.5 SFA44S12.5K375B A 3.75
12.5 SFC44S12.5K291B C 2.91
15.0 S SFA44S15K375B A 3.75
15.0 SFC44S15K291B C 2.91
17.5 SFC44S17.5K291B C 2.91
20.0 S SFC44S20K391B C 3.91
25.0 S SFC44S25K391B C 3.91
30.0 S SFC44S30K391B C 3.91
35.0 S SFD44S35K391B D 3.91
40.0 S SFD44S40K391B D 3.91
45.0 S SFD44S45K391B D 3.91
50.0 S SFD44S50K391B D 3.91
55.0 S SFD44S55K391B D 3.91
60.0 S SFD44S60K391B D 3.91
370 Vac 70 °C Case Temperature
440 Vac 70 °C Case Temperature
Ratings - Oval Case Style
Ratings - Oval Case Style
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830• www.cde.com
Type SF Motor-Run and Power Supply Capacitors
Options
♦ Tin-plated steel cans are standard. Aluminum
cases are available upon request.
♦ Tighter capacitance tolerances such as ±3% or
±6% are available.
♦ +90 °C ratings are available for HID lighting and
power supply applications.
♦ Discharge resistors are available.
♦ Special terminal lugs such as 2 tines plus 1 fork
lugs are available.
♦ Dual capacitance values are available for 370
Vac and 440 Vac applications.
Part Numbering System
Hardware and Brackets: See Capacitor Hardware, page 5.000
SF C 37 S 35 K 291 B
Series Case AC Volt Case Material Cap Tol. ±% Can Height VAR
SF A = 1 1/4" Oval 24 = 240 Vac S = Steel 7 = 7.0 µF L = ±3% 238 = 2.38" A = 2 way 70 °C
B = 1 1/2" Oval 37 = 370 Vac T = Aluminum with 35 = 35.0 µF H = ±6% 291 = 2.91" B = 4 way 70 °C
C = 1 3/4" Oval 44 = 440 Vac steel cover K = ±10% 388 = 3.88" C = 2 way 90 °C
D = 2.0" Oval 66 = 660 Vac A = All Aluminum 475 = 4.75" D = 4 way 90 °C
X = Other 488 = 4.88" E = Dual 2,3,4 70 °C
P = 1 3/4" Round
F = Forks 70 °C
S = 2.0" Round
G = Forks 90 °C
T = 2 1/2" Round
H = Forks 100 °C
J = Forks, 70° Res.
K = Forks, 90° Res.
L = Forks, 100° Res.
Z = Other
Cap. Stock Catalog Case H
(µF) Items Part Number Code Inches
1.0 S SFA66S1K156B A 1.56
1.0 SFA66S1K219B A 2.19
2.0 S SFA66S2K156B A 1.56
2.0 SFA66S2K219B A 2.19
3.0 S SFA66S3K288B A 2.88
4.0 S SFA66S4K288B A 2.88
5.0 S SFA66S5K375B A 3.75
6.0 S SFA66S6K375B A 3.75
8.0 S SFA66S8K475B A 4.75
8.0 SFC66S8K291B C 2.91
10.0 S SFA66S10K475B A 4.75
10.0 S SFC66S10K291B C 2.91
12.0 S SFC66S12K391B C 3.91
15.0 S SFC66S15K391B C 3.91
18.0 S SFC66S18K391B C 3.91
20.0 S SFD66S20K391B D 3.91
25.0 S SFD66S25K391B D 3.91
30.0 S SFD66S30K391B D 3.91
35.0 S SFD66S35K491B D 4.91
40.0 S SFD66S40K491B D 4.91
660 Vac 70 °C Case Temperature
Ratings - Oval Case Style
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830• www.cde.com
Type SF - Round Case Style
Type SF Motor-Run and Power Supply Capacitors
Case Code
Case Code D (Inches) H
P1.87 see table
S2.12 see table
T2.62 see table
Hardware and Brackets:
See page 5.000 for details
0.5 Max.
H + .12
- .06
D ± .06
.81 ± .06
CapStock CatalogCase H
(µF) Items Part Number Code (Inches)
2.0 SFP37S2K238B P 2.38
3.0 SFP37S3K238B P 2.38
4.0 S SFP37S4K238B P 2.38
5.0 SFP37S5K238B P 2.38
6.0 SFP37S6K238B P 2.38
7.5 SFP37S7.5K238B P 2.38
10.0 S SFP37S10K238B P 2.38
12.5 S SFP37S12.5K238B P 2.38
15.0 S SFP37S15K238B P 2.38
17.5 SFP37S17.5K238B P 2.38
20.0 S SFP37S20K238B P 2.38
25.0 S SFP37S25K288B P 2.88
30.0 S SFP37S30K288B P 2.88
35.0 S SFS37S35K288B S 2.88
40.0 S SFS37S40K288B S 2.88
45.0 S SFS37S45K375B S 3.75
50.0 S SFS37S50K375B S 3.75
55.0 S SFS37S55K375B S 3.75
60.0 S SFT37S60K303B T 3.03
65.0 SFT37S65K303B T 3.03
70.0 SFT37S70K303B T 3.03
75.0 SFT37S75K391B T 3.91
80.0 S SFT37S80K391B T 3.91
90.0 SFT37S90K391B T 3.91
100.0 SFT37S100K391B T 3.91
CapStock CatalogCase H
(µF) Items Part Number Code (Inches)
2.0 SFP44S2K238B P 2.38
3.0 SFP44S3K238B P 2.38
4.0 SFP44S4K238B P 2.38
5.0 SFP44S5K238B P 2.38
6.0 SFP44S6K238B P 2.38
7.5 SFP44S7.5K238B P 2.38
10.0 S SFP44S10K238B P 2.38
12.5 SFP44S12.5K238B P 2.38
15.0 S SFP44S15K288B P 2.88
17.5 SFP44S17.5K288B P 2.88
20.0 S SFP44S20K288B P 2.88
25.0 SFS44S25K288B S 2.88
30.0 S SFS44S30K288B S 2.88
35.0 SFT44S35K303B T 3.03
40.0 S SFT44S40K391B T 3.91
45.0 SFT44S45K391B T 3.91
50.0 S SFT44S50K391B T 3.91
55.0 SFT44S55K391B T 3.91
60.0 S SFT44S60K475B T 4.75
370 Vac 70°C Case Temperature
440 Vac 70 °C Case Temperature
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830• www.cde.com
Type SF Motor-Run and Power Supply Capacitors
Options
♦ Tin-plated steel cans are standard. Aluminum
cases are available upon request.
♦ Tighter capacitance tolerances such as ±3% or
±6% are available.
♦ +90 °C ratings are available for HID lighting and
power supply applications.
♦ Discharge resistors are available.
♦ Special terminal lugs such as 2 tines plus 1 fork
lug are available.
♦ Dual capacitance values are available for 370
Vac and 440 Vac applications.
Part Numbering System
Hardware and Brackets: See Capacitor Hardware, page 5.000
SF C 37 S 35 K 291 B
Series Case AC Volt Case Material Cap Tol. ±% Can Height VAR
SF A = 1 1/4" Oval 24 = 240 Vac S = Steel 7 = 7.0 µF L = ±3% 238 = 2.38" A = 2 way 70 °C
B = 1 1/2" Oval 37 = 370 Vac T = Aluminum with 35 = 35.0 µF H = ±6% 291 = 2.91" B = 4 way 70 °C
C = 1 3/4" Oval 44 = 440 Vac steel cover K = ±10% 388 = 3.88"C = 2 way 90 °C
D = 2.0" Oval 66 = 660 Vac A = All Aluminum Z = Special 475 = 4.75"D = 4 way 90 °C
X = Other 488 = 4.88" E = Dual 2,3,4 70 °C
P = 1 3/4" Round F = Forks 70 °C
S = 2.0" Round G = Forks 100 °C
T = 2 1/2" Round H = Forks 100 °C
J = Forks, 70° Res.
K = Forks, 90° Res.
L = Forks, 100° Res.
Cap Stock Catalog Case H
(µF) Items Part Number Code (Inches)
2.0 SFP66S2K238B P 2.38
3.0 SFP66S3K238B P 2.38
5.0 SFP66S5K238B P 2.38
7.5 SFP66S7.5K288B P 2.88
10.0 SFP66S10K288B P 2.88
12.5 SFS66S12.5K288B S 2.88
15.0 SFS66S15K375BS3.75
17.5 SFT66S17.5K388B T 3.88
20.0 SFT66S20K388B T 3.88
25.0 SFT366S25K488B T 4.88
30.0 SFT66S30K488B T 4.88
35.0 SFT66S35K488B T 4.88
40.0 SFT66S40K488B T 4.88
660 Vac 70°C Case Temperature
Ratings - Round Case Style
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830• www.cde.com
