AC Line Filters
Common Mode SCF Coils, SCF Series,
Terminal Base Type
Overview
Applications
The KEMET SCF coils are common mode chokes with a
wide variety of characteristics. These toroidal coils are
designed with nanocrystalline metal cores and are useful in
various noise countermeasure fields.
• Audio-visual equipment
• Industrial equipment
• Home appliances
• Power supplies
Benefits
• Nanocrystalline metal core
• Ultra-high inductance
• Ultra-high permeability
• Operating temperature range from −40°C to +120°C
• UL 94 V–0 flame retardant rated base and cap
Part Number System
SCF
31B-
200-
2R0
A
020
JH
Series
Dimension Code
(See Dimensions)
Rated Current
(A)
Wire Diameter
(mm)
Windings
Inductance (mH)
Minimum
Terminal Base Type
Internal Control
Code
0x = x A
xxx = xx.x A
Blank
R = Decimal
point
Blank
A = Single
C = Triple
xxxx = xx.xx mH
xxx = xx.xmH
xx = x.x mH
J = Vertical type
JH = Horizontal type
Blank
V
SCF
Blank
12
19
31B
33B
47B
47C
Examples:
02 = 2 A
025 = 2.5 A
200 = 20.0 A
Examples:
0R8 = 0.8 mm
2R0 = 2.0 mm
Examples:
1100 = 11.00 mH
020 = 2.0 mH
65 = 6.5 mH
Built Into Tomorrow
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0079_SCF-J_JH • 9/25/2023
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AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
Magnetic Permeability of Ferrite Material
In order to achieve most efficient noise reduction, it is important to select the material according to the target frequency
band. Depending on its magnetic permeability, a particular ferrite material or metal material will be effective in a certain
frequency band. A schematic representation of the relationship between the magnetic permeability of each material and the
corresponding effective band range is shown in Figure 1.
Ferrite materials with higher magnetic permeability are effective in the lower frequency range, while those with lower
magnetic permeability are effective in the higher frequency range. Thus, Mn-Zn products are mainly used for reducing
conduction noise, while Ni-Zn products are commonly used for radiation noise countermeasures. Metal materials, however,
are effective throughout the broadband frequency range, in low as well as high frequencies.
The effective frequency range varies depending on core shape, size, and number of windings. This frequency dependence
of the magnetic permeability as shown in the figure serves for reference purposes only. It should be tested on the actual
device to determine its effectiveness.
S18H, S15H, 10H, 7H, 5H, 1400L, and 700L are KEMET’s proprietary ferrite material names. Other materials are available
upon request.
Figure 1 - Relationship between the magnetic permeability of each material and its effective frequency range
Higher magnetic permeability:
Higher noise suppression effect in the broadband frequency range
Nanocrystalline Core
Magnetic Permeability
20,000
Higher magnetic permeability:
Higher noise suppression effect
in the lower frequency range
Mn-Zn Series
S18H
S15H
Lower magnetic permeability:
Higher noise suppression effect
in the higher frequency range
10H
10,000
7H
5H
Ni-Zn Series
0
10 kHz
1400L
700L
100 kHz
1 MHz
10 MHz
100 MHz
1 GHz
Effective Frequency Range
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0079_SCF-J_JH • 9/25/2023
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AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
Dimensions – Millimeters
Figure 1
OD
Figure 2
T
OD
(a)
T
H
H
(a)
N2
N2
L
N1
(b)
(b)
N1
(a)
(a)
L
(b)
(b)
Figure 4
Figure 3
OD
T
OD
H
L
(a)
(a)
4-
(a)
(b)
1
Figure 7
Pin pitch listed above for reference only. Values not guaranteed.
OD
(b)
N2
H
L
L
a
b
c
d
φ
4.5±1.0
3.0±0.5
3.1±0.5
3.5±1.0
3.5±1.0
6.0±3.0
4.0±1.0
5.0±2.0
4.5±1.5
5.0±2.0
5.00
5.08
6.00
5.00
18.00
44.00
17.00
25.00
25.00
44.00
10.00
7.62
10.00
10.00
16.00
32.00
30.00
30.00
28.00
32.00
45°
2.3
6.0
4.2
-
Figure 8
T
H
Figure
e
4-
(
7.0
R
)
1.15
(a)
N1
Fig. 1
Fig. 2
Fig. 1
N2Fig. 1
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
(a)
L
(a)
(d
)
OD
(a)
(b)
T
15.0
15.5
16.0
15.0
28.5
36.5
35.0
35.0
61.0
38.0
OD
(a)
(b)
N2
(b)
14.0
15.0
12.0
N1
14.0
23.0
42.0
50.0
39.0
-
Pin Pitch1
(Reference)
(b)
L
15.0
16.0
16.0
15.0
28.5
70.0
48.0
50.0
63.0
70.0
T
SCF-02-130JV
SCF-02-350JH
SCF12-025-1100J
SCF-03-65JV
SCF19-040-0R8A1100J
SCF47B-600-2R2C0005JH
SCF31B-200-2R0A020JH
SCF33B-400-1R6C009JH
SCF47B-400-1R8C040J
SCF47C-400-1R8C040JH
H
OD
T
H
(Maximum) (Maximum)
(Maximum)
(a)
(b)
(a)
Figure 6
Dimensions
(mm)
Figure 5
Part Name
OD
N1
L
(a)
N2
(b)
N1
(b)
(b)
H
(a)
(e
)
N1
N2
(a)
(b)
N2
L
N1
(b)
(b)
H
(6-R )
Base hole dimension
(b)
(c)
(a)
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0079_SCF-J_JH • 9/25/2023
3
4-
(a)
N2
N2
(b)
N1
(b)
N1
(b)
(b)
H
(a)
AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
(b)
L
(a)
Dimensions – Millimeters cont.
Figure 6
Figure 5
OD
H
L
OD
H
L
(a)
(a)
(a)
4-
(a)
(
)
N1
N2
(b)
(b)
N2
Figure 8
Figure 7
OD
(b)
T
N1
(b)
T
(b)
(a)
T
H
(a)
L
(a)
(d
)
OD
(e
)
N1
N2
(a)
Part Name
SCF-02-130JV
SCF-02-350JH
SCF12-025-1100J
SCF-03-65JV
SCF19-040-0R8A1100J
SCF47B-600-2R2C0005JH
SCF31B-200-2R0A020JH
SCF33B-400-1R6C009JH
SCF47B-400-1R8C040J
SCF47C-400-1R8C040JH
1
(b)
N2
L
N1
(b)
(b)
H
(6-R )
Base hole dimension
(b)
(c)
(a)
Dimensions
(mm)
Pin Pitch1
(Reference)
OD
T
H
(Maximum) (Maximum) (Maximum)
15.0
16.0
16.0
15.0
28.5
70.0
48.0
50.0
63.0
70.0
14.0
15.0
12.0
14.0
23.0
42.0
50.0
39.0
-
15.0
15.5
16.0
15.0
28.5
36.5
35.0
35.0
61.0
38.0
Figure
L
a
b
c
d
φ
e
R
4.5±1.0
3.0±0.5
3.1±0.5
3.5±1.0
3.5±1.0
6.0±3.0
4.0±1.0
5.0±2.0
4.5±1.5
5.0±2.0
5.00
5.08
6.00
5.00
18.00
44.00
17.00
25.00
25.00
44.00
10.00
7.62
10.00
10.00
16.00
32.00
30.00
30.00
28.00
32.00
45°
2.3
6.0
4.2
-
7.0
1.15
Fig. 1
Fig. 2
Fig. 1
Fig. 1
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Pin pitch listed above for reference only. Values not guaranteed.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0079_SCF-J_JH • 9/25/2023
4
AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
Environmental Compliance
All KEMET AC line filters are RoHS Compliant.
Performance Characteristics
Item
Performance Characteristics
Rated Voltage
Withstanding Voltage
Insulation Resistance
Rated Current Range
Rated Inductance Range
Inductance Measurement Condition
Thermal Class
Operating Temperature Range
250 VAC/VDC and 500VAC/VDC
2,400 VAC (2 seconds, between lines)
> 100 MΩ at 500 VDC (between lines)
2 – 60 A
0.05 – 35 mH minimum
10 kHz, 50 kHz, and 100 kHz
E (120°C)
−40°C to +120°C (include self temperature rise)
Table 1 – Ratings & Part Number Reference
Part Number
SCF-02-130JV
SCF-02-350JH
SCF12-025-1100J
SCF-03-65JV
SCF19-040-0R8A1100J
SCF47B-600-2R2C0005JH
SCF31B-200-2R0A020JH
SCF33B-400-1R6C009JH
SCF47B-400-1R8C040J
SCF47C-400-1R8C040JH
Rated
Voltage
AC/DC (V)
Rated
Current
(A)
250
250
250
250
250
250
500
500
500
500
2.0
2.0
2.5
3.0
4.0
60.0
20.0
40.0
40.0
40.0
Inductance DC Resistance/
(mH)
Line (mΩ)
Minimum
Maximum
13.00 1
35.00 1
11.90 1
6.50 1
11.00 2
0.05 3
2.00 3
0.90 3
4.00 1
4.00 1
115.00
220.00
82.60
70.00
70.00
0.31
5.20
1.70
2.10
2.10
Temperature
Rise (K)
Maximum
Wire
Diameter
(mm)
Weight
(g)
Approximate
50
45
70
55
60
35
55
65
75
55
0.45
0.40
0.45
0.50
0.80
2.2 x 3 Parallel
2.00
1.60
1.8 x 3 Parallel
1.8 x 3 Parallel
5.0
5.4
5.0
4.0
27.6
135.0
91.1
105.1
190.0
192.7
Inductance Measurement Condition: 10 kHz
Inductance Measurement Condition: 50 kHz
3
Inductance Measurement Condition: 100 kHz
1
2
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LF0079_SCF-J_JH • 9/25/2023
5
AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
Frequency Characteristics
1M
SCF-02-130JV
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
10
1k
100
10
1
1
1k
1M
10k
100k
Frequency (Hz)
1M
10M
1k
30M
SCF12-025-1100J
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
10
10M
30M
100k
1M
10M
30M
1M
10M
30M
1M
10M
30M
SCF-03-65JV
100
10k
100k
Frequency (Hz)
1M
10M
1k
30M
SCF19-040-0R8A1100J
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
1M
1k
100k
1k
100
10
10k
Frequency (Hz)
SCF47B-600-2R2C0005JH
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
1k
SCF31B-200-2R0A020JH
1M
100k
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
Frequency (Hz)
1
1k
1M
10k
10
1
1M
SCF-02-350JH
1k
100
10
10k
100k
Frequency (Hz)
SCF33B-400-1R6C009JH
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
1k
10k
100k
Frequency (Hz)
LF0079_SCF-J_JH • 9/25/2023
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AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
Frequency Characteristics cont.
1M
SCF47C-400-1R8C040JH
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
10
SCF47B-400-1R8C040J
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
1k
10k
100k
Frequency (Hz)
1M
10M
30M
Packaging
Type
SCF-02-130JV
SCF-02-350JH
SCF12-025-1100J
SCF-03-65JV
SCF19-040-0R8A1100J
SCF47B-600-2R2C0005JH
SCF31B-200-2R0A020JH
SCF33B-400-1R6C009JH
SCF47B-400-1R8C040J
SCF47C-400-1R8C040JH
Packaging Type
Tray
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Pieces Per Box
360
600
1,080
360
240
36
80
36
LF0079_SCF-J_JH • 9/25/2023
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AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
Handling Precautions
Precautions for product storage
AC Line Filters should be stored in normal working environments. While the chokes themselves are quite robust in other
environments, solderability will be degraded by exposure to high temperatures, high humidity, corrosive atmospheres, and
long term storage.
KEMET recommends that maximum storage temperature not exceed 40°C and maximum storage humidity not exceed 70%
relative humidity. Atmospheres should be free of chlorine and sulfur bearing compounds. Temperature fluctuations should
be minimized to avoid condensation on the parts. Avoid storage near strong magnetic fields, as this might magnetize the
product.
For optimized solderability, AC line filters stock should be used promptly and preferably within 6 months of receipt.
Product temperature rise values
The values listed for temperature rise are the result of self-heating in wires when the rated current (commercial frequency)
is applied.
When using the product, check and evaluate the value of the core temperature rise under actual operating conditions.
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8
AC Line Filters – Common Mode SCF Coils, SCF Series, Terminal Base Type
KEMET Electronics Corporation Sales Offices
For a complete list of our global sales offi ces, please visit www.kemet.com/sales.
Disclaimer
YAGEO Corporation and its affi liates do not recommend the use of commercial or automotive grade products for high reliability applications or manned space fl ight.
All product specifi cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for
checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed. All Information given
herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such
applications, but are not intended to constitute – and KEMET specifi cally disclaims – any warranty concerning suitability for a specifi c customer application or use.
The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes no
obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards
(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or
property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated or that other
measures may not be required.
When providing KEMET products and technologies contained herein to other countries, the customer must abide by the procedures and provisions stipulated in all
applicable export laws and regulations, including without limitation the International Traffi c in Arms Regulations (ITAR), the US Export Administration Regulations
(EAR) and the Japan Foreign Exchange and Foreign Trade Act.
KEMET is a registered trademark of KEMET Electronics Corporation.
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LF0079_SCF-J_JH • 9/25/2023
9