AC Line Filters
Common Mode SSR Coils, 21NVS-M/NHS-M,
Wide Range Impedance Type
Overview
The KEMET SSR coils are common mode chokes with a
wide variety of characteristics. These gear type coils are
designed with our proprietary high permeability ferrite
S15H cores and are useful in various noise countermeasure
fields.
Applications
•
•
•
•
Audio-visual equipment
Office automation equipment
Digital appliances
Power supplies
Benefits
Proprietary S15H ferrite material
High permeability
Higher performance due additional windings
High impedance in wide frequency range due to divided
bobbin
• Compact size, low profile and light weight
• Operating temperature range from −25°C to +120°C
• UL94 V-0 flame retardant rated base and bobbin
•
•
•
•
Part Number System
SSR
Series
SSR
21N
Core Size
(mm)
21N = 20.9 mm
VS-M
Core Orientation and Bobbin Type
HS-M = Horizontal, bobbin with
sectional winding structure
VS-M = Vertical, bobbin with sectional
winding structure
03
Rated Current AC
(A)
0x = 0.x A
xx = x.x A
Examples:
04 = 0.4 A
13 = 1.3 A
1500
Inductance (mH)
Minimum
xxx0 = xxx mH
xxx = xx.x mH
Examples:
1590 = 159 mH
034 = 3.4 mH
One world. One KEMET
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0047_SSR21NVS-M_NHS-M • 7/23/2018
1
AC Line Filters – Common Mode SSR Coils, 21NVS-M/NHS-M, Wide Range Impedance 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 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
S18H
Magnetic Permeability
S15H
10,000
10H
7H
5H
Lower magnetic permeability:
Higher noise suppression effect
in the higher frequency range
Ni-Zn Series
1400L
700L
100 kHz
1 MHz
10 MHz
100 MHz
1 GHz
0
10 kHz
Effective Frequency Range
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0047_SSR21NVS-M_NHS-M • 7/23/2018
2
AC Line Filters – Common Mode SSR Coils, 21NVS-M/NHS-M, Wide Range Impedance Type
Dimensions – Millimeters
SSR21NVS-M
22.0 Maximum
13.0
SSR21NHS-M
23.0 Maximum
10.0
16.0 Maximum
N1
N2
27.0 Maximum
φ0.8
3.5 ± 0.5
φ0.8
10 ± 0.5
3.5 ± 0.5
18.5 ± 0.5
13 ± 0.5
10 ± 0.5
Environmental Compliance
All KEMET AC Line Filters are RoHS Compliant.
RoHS Compliant
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0047_SSR21NVS-M_NHS-M • 7/23/2018
14.5 Maximum
18.5
N1
N2
23.0 Maximum
10.0
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AC Line Filters – Common Mode SSR Coils, 21NVS-M/NHS-M, Wide Range Impedance Type
Table 1 – Ratings & Part Number Reference
Part Number
SSR21NHS-M031500
SSR21NVS-M031500
SSR21NHS-M041350
SSR21NVS-M041350
SSR21NHS-M051200
SSR21NVS-M051200
SSR21NHS-M06890
SSR21NVS-M06890
SSR21NHS-M07680
SSR21NVS-M07680
SSR21NHS-M08475
SSR21NVS-M08475
SSR21NHS-M10345
SSR21NVS-M10345
SSR21NHS-M12220
SSR21NVS-M12220
SSR21NHS-M15164
SSR21NVS-M15164
SSR21NHS-M18125
SSR21NVS-M18125
SSR21NHS-M20103
SSR21NVS-M20103
SSR21NHS-M25064
SSR21NVS-M25064
SSR21NHS-M30041
SSR21NVS-M30041
Rated Current Inductance (mH)
AC (A)
Minimum
0.3
0.3
0.4
0.4
0.5
0.5
0.6
0.6
0.7
0.7
0.8
0.8
1.0
1.0
1.2
1.2
1.5
1.5
1.8
1.8
2.0
2.0
2.5
2.5
3.0
3.0
150.0
150.0
135.0
135.0
120.0
120.0
89.0
89.0
68.0
68.0
47.5
47.5
34.5
34.5
22.0
22.0
16.4
16.4
12.5
12.5
10.3
10.3
6.4
6.4
4.1
4.1
DC Resistance/
Line (Ω)
Maximum
2.70
2.70
2.00
2.00
1.85
1.85
1.35
1.35
0.95
0.95
0.68
0.68
0.51
0.51
0.35
0.35
0.23
0.23
0.19
0.19
0.15
0.15
0.09
0.09
0.07
0.07
Temperature
Rise (K)
Maximum
40
40
40
40
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Wire Diameter
(mm)
0.20
0.20
0.23
0.23
0.23
0.23
0.25
0.25
0.28
0.28
0.30
0.30
0.32
0.32
0.35
0.35
0.40
0.40
0.40
0.40
0.45
0.45
0.50
0.50
0.55
0.55
Weight (g)
Approximate
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
13.0
14.5
Performance Characteristics
Item
Rated Voltage
Withstanding Voltage
Insulation Resistance
Rated Current AC Range
Rated Inductance Range
Inductance Measurement Condition
Thermal Class
Operating Temperature Range
Inductance Measurement Condition
250 VAC
2,400 VAC (2 seconds, between lines)
> 100 MΩ at 500 VDC (between lines)
0.3 – 3.0 A
4.1 – 150.0 mH minimum
10 kHz
E (120°C)
−25°C to +120°C (include self temperature rise)
at 10 kHz
Performance Characteristics
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0047_SSR21NVS-M_NHS-M • 7/23/2018
4
AC Line Filters – Common Mode SSR Coils, 21NVS-M/NHS-M, Wide Range Impedance Type
Frequency Characteristics
Packaging
Type
SSR21NHS-M
SSR21NVS-M
Packaging Type
Tray
Pieces per Box
420
450
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0047_SSR21NVS-M_NHS-M • 7/23/2018
5
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