AC Line Filters
Common Mode SS Coils, 21V Series
Overview
Applications
The KEMET SS coils are common mode chokes with a
wide variety of characteristics. These gear type coils are
designed with our proprietary ferrite cores and are useful in
various noise countermeasure fields.
• Audio-visual equipment
• Office automation equipment
• Digital appliances
• Power supplies
Benefits
• Proprietary 5H and 10H ferrite materials and equivalents
• Suitable for ≥ 150 kHz range
• Wide variety of sizes and specifications
• Operating temperature range from −25°C to +120°C
• UL 94 V–0 flame retardant rated base and bobbin
Part Number System
SS
Series
SS
21
V-
Core Size Code Core Orientation
21
V = Vertical
R
03
1380
Core Type
Rated Current (A)
Inductance (mH) Minimum
Blank = Standard
R = High permeability
0x = 0.x A
xx = x.x A
Examples:
03 = 0.3 A
13 = 1.3 A
xxx0 = xxx mH
0xxx = xx mH
00xx = x.x mH
000x = 0.x mH
Examples:
1380 = 138 mH
0179 = 17.9 mH
0026 = 2.6 mH
0008 = 0.8 mH
One world. One KEMET
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LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
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 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. 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.
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 and 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 can also be
available on request.
Figure 1 - Relationship between the magnetic permeability of each material and its effective frequency range
20,000
Higher magnetic permeability:
Higher noise suppression effect
in the lower frequency range
Mn-Zn Series
Magnetic Permeability
S18H
S15H
10H
10,000
Lower magnetic permeability:
Higher noise suppression effect
in the higher frequency range
7H
5H
Ni-Zn Series
0
10 kHz
1400L
700L
100 kHz
1 MHz
10 MHz
100 MHz
1 GHz
Effective Frequency Range
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Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
Dimensions – Millimeters
Marking
10
24.5±1.0
13
13.0±0.5
ø0.8±0.1
10.0±0.5
20.6±1.0
16.8±1.0
Environmental Compliance
All KEMET AC Line Filters are RoHS Compliant.
Performance Characteristics
Item
Rated Voltage
Withstanding Voltage
Insulation Resistance
Rated Current Range
Rated Inductance Range
Inductance Measurement Condition
Thermal Class
Operating Temperature Range
Performance Characteristics
250 VAC
2,400 VAC (2 seconds, between lines)
> 100 MΩ at 500 VDC (between lines)
0.3 – 3.0 A
0.8 – 138.0 mH minimum
1 kHz
E (120°C)
−25°C to +120°C (include self temperature rise)
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Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
Table 1 – Ratings & Part Number Reference
Part Number
Rated
Current
(A)
Inductance
(mH)
Minimum
DC Resistance/
Line (Ω)
Maximum
Temperature
Rise (K)
Maximum
Marking
Weight (g)
Approximate
SS21V-030930
SS21V-040520
SS21V-050360
SS21V-060220
SS21V-070179
SS21V-080136
SS21V-100098
SS21V-110067
SS21V-130044
SS21V-150038
SS21V-180029
SS21V-200024
SS21V-220017
SS21V-250015
SS21V-300008
SS21V-R031380
SS21V-R040770
SS21V-R050540
SS21V-R060330
SS21V-R070260
SS21V-R080200
SS21V-R100146
SS21V-R110100
SS21V-R130066
SS21V-R150057
SS21V-R180044
SS21V-R200036
SS21V-R220026
SS21V-R250023
SS21V-R300013
0.3
0.4
0.5
0.6
0.7
0.8
1.0
1.1
1.3
1.5
1.8
2.0
2.2
2.5
3.0
0.3
0.4
0.5
0.6
0.7
0.8
1.0
1.1
1.3
1.5
1.8
2.0
2.2
2.5
3.0
93.0
52.0
36.0
22.0
17.9
13.6
9.8
6.7
4.4
3.8
2.9
2.4
1.7
1.5
0.8
138.0
77.0
54.0
33.0
26.0
20.0
14.6
10.0
6.6
5.7
4.4
3.6
2.6
2.3
1.3
5.90
5.40
2.40
1.50
1.10
0.80
0.60
0.45
0.35
0.30
0.20
0.15
0.13
0.10
0.07
5.90
5.40
2.40
1.50
1.10
0.80
0.60
0.45
0.35
0.30
0.20
0.15
0.13
0.10
0.07
50
50
50
45
50
45
50
45
50
50
45
50
45
50
50
50
50
50
45
50
45
50
45
50
50
45
50
45
50
50
03 Lot No.
04 Lot No.
05 Lot No.
06 Lot No.
07 Lot No.
08 Lot No.
10 Lot No.
11 Lot No.
13 Lot No.
15 Lot No.
18 Lot No.
20 Lot No.
22 Lot No.
25 Lot No.
30 Lot No.
R03 Lot No.
R04 Lot No.
R05 Lot No.
R06 Lot No.
R07 Lot No.
R08 Lot No.
R10 Lot No.
R11 Lot No.
R13 Lot No.
R15 Lot No.
R18 Lot No.
R20 Lot No.
R22 Lot No.
R25 Lot No.
R30 Lot No.
12.3
12.2
12.2
12.9
13.2
13.4
13.1
12.8
11.5
12.4
13.3
12.6
12.7
12.3
11.7
12.3
12.2
12.2
12.9
13.2
13.4
13.1
12.8
11.5
12.4
13.3
12.6
12.7
12.3
11.7
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LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
Frequency Characteristics
1M
SS21V-030930
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
30M
1k
SS21V-050360
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
10
10M
30M
100k
1M
10M
30M
100k
1M
10M
30M
100k
1M
10M
30M
SS21V-060220
100
10k
100k
Frequency (Hz)
1M
10M
30M
1k
SS21V-070179
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
1M
1k
100k
1k
100
10
10k
Frequency (Hz)
SS21V-080136
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
1k
30M
SS21V-100098
1M
100k
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
Frequency (Hz)
1
1k
1M
10k
10
1
1M
SS21V-040520
1k
100
10
10k
Frequency (Hz)
SS21V-110067
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
1k
10k
Frequency (Hz)
LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
Frequency Characteristics cont.
1M
SS21V-130044
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
30M
1k
SS21V-180029
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
10
10M
30M
100k
1M
10M
30M
100k
1M
10M
30M
100k
1M
10M
30M
SS21V-200024
100
10k
100k
Frequency (Hz)
1M
10M
30M
1k
SS21V-220017
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
1M
1k
100k
1k
100
10
10k
Frequency (Hz)
SS21V-250015
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
1k
SS21V-300008
1M
100k
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
Frequency (Hz)
1
1k
1M
10k
10
1
1M
SS21V-150038
1k
100
10
10k
Frequency (Hz)
SS21V-R031380
1k
100
10
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
1
1k
10k
Frequency (Hz)
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AC Line Filters – Common Mode SS Coils, 21V Series
Frequency Characteristics cont.
1M
SS21V-R040770
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
SS21V-R060330
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
10
10M
30M
100k
1M
10M
30M
100k
1M
10M
30M
100k
1M
10M
30M
SS21V-R070260
100
10k
100k
Frequency (Hz)
1M
10M
30M
1k
SS21V-R080200
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
1M
1k
100k
1k
100
10
10k
Frequency (Hz)
SS21V-R100146
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
1k
SS21V-R110100
1M
100k
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
Frequency (Hz)
1
1k
1M
10k
10
1
1M
SS21V-R050540
1k
100
10
10k
Frequency (Hz)
SS21V-R130066
1k
100
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
1k
10k
Frequency (Hz)
LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
Frequency Characteristics cont.
1M
SS21V-R150057
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
1k
100
10
10
1
1
1k
1M
10k
100k
Frequency (Hz)
1M
10M
1k
30M
SS21V-R200036
1M
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
100k
1k
100
10
100k
1M
10M
30M
100k
1M
10M
30M
100k
1M
10M
30M
Frequency (Hz)
SS21V-R220026
1k
100
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
1k
SS21V-R250023
1M
100k
10k
10k
Impedance (Ω)
100k
Impedance (Ω)
10k
10
1
1M
SS21V-R180044
1k
100
10k
Frequency (Hz)
SS21V-R300013
1k
100
10
10
1
1
1k
10k
100k
Frequency (Hz)
1M
10M
30M
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
1k
10k
Frequency (Hz)
LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
Packaging
Type
Packaging Type
Pieces Per Box
SS21V
Tray
600
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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LF0028_SS21V • 1/31/2020
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AC Line Filters – Common Mode SS Coils, 21V Series
KEMET Electronics Corporation Sales Offices
For a complete list of our global sales offi ces, please visit www.kemet.com/sales.
Disclaimer
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 indicted 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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Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0028_SS21V • 1/31/2020
10