AC Line Filters
Common Mode SSR Coils, 21H Series,
High Impedance Type
Overview
Applications
The KEMET SSR21H Series AC line filters are compact, low
profile, and lightweight.
• Audio-visual equipment
• Office automation equipment
• Digital appliances
• Power supply devices
• Common mode choke
Benefits
• High degree of characterization as a result of using
industry’s highest standard, high permeability core.
• Optimized design for compact size, low profile, and
lightweight
• Non-split bobbin design for strong inductance
characteristics and high impedance
• Inductance up to 155 mH
• Rated Currents up to 2.0 A
• DC Resistances as low as 0.11 Ω
Part Number System
SSR
21
H-
5
680
Series
Core Size (mm)
Core Orientation
Rated Current AC (A)
Inductance (mH) Minimum
SSR
21 = 20.9 mm
H = Vertical
0x = 0.x A
xx = x.x A
Examples:
05 = 0.5 A
10 = 1.0 A
xxx0 = xxx mH
xx0 = xx mH
xxx = xx.x mH
0xx = x.x mH
Examples:
1550 = 155 mH
680 = 68 mH
425 = 42.5 mH
083 = 8.3 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
LF0001_SSR21H • 10/14/2019
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AC Line Filters – Common Mode SSR Coils, 21H Series, High Impedance Type
Dimensions – Millimeters
23.0 Maximum
N2
3.5 ±0.5
ø 0.8
14.5 Maximum
18.5
N1
23.0 Maximum
10
18.5 ±0.5
10.0 ±0.5
Environmental Compliance
All KEMET AC Line Filters are RoHS Compliant.
Table 1 – Ratings & Part Number Reference
Part Number
Rated Current
AC (A)
Inductance
(mH)
Minimum
DC Resistance/
Line (Ω)
Maximum
Temperature
Rise (K)
Maximum
Wire Diameter
(mm)
Weight (g)
Approximate
SSR21H-031550
SSR21H-041100
SSR21H-05680
SSR21H-06425
SSR21H-07350
SSR21H-08280
SSR21H-10215
SSR21H-12150
SSR21H-13120
SSR21H-15083
SSR21H-20055
0.3
0.4
0.5
0.6
0.7
0.8
1.0
1.2
1.3
1.5
2.0
155.0
110.0
68.0
42.5
35.0
28.0
21.5
15.0
12.0
8.3
5.5
3.40
2.20
1.40
0.89
0.70
0.54
0.41
0.32
0.24
0.16
0.11
45
45
45
45
45
45
45
45
45
45
45
0.2
0.2
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.5
0.5
14
14
14
14
14
14
14
14
14
14
14
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0001_SSR21H • 10/14/2019
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AC Line Filters – Common Mode SSR Coils, 21H Series, High Impedance Type
Performance Characteristics
Item
SSR21H
Rated Voltage
250 VAC
Withstanding Voltage
2,400 VAC (2 seconds, between lines)
Insulation Resistance
> 100 MΩ at 500 VDC (between lines)
Rated Current AC Range
0.3 – 2.0 A
Rated Inductance Range
5.5 – 155.0 mH minimum
Inductance Measurement Condition
10 kHz, 1 mA
Thermal Class
E (120°C)
Operating Temperature Range
−25°C to +120°C (include self temperature rise)
Frequency
Characteristics
Frequency
characteristic
Impedance ( )
100K
10K
1K
100
10
1
6
3
1
6
3
1M
SSR21H-031550
100K
SSR21H-041100
1
6
3
Impedance ( )
1M
SSR21H-05680
1
6
3
SSR21H-06425
1
6
3
1
6
3
1
1K
Impedance ( )
100K
10K
1K
100
10
1K
100
10
3
6
1
10K
3
6
1
100K
3
6
1
1M
3
6
1
10M
3
30M
Frequency (Hz)
1M
10K
1
6
3
1
6
3
SSR21H-07350
SSR21H-08280
1
6
3
SSR21H-10215
1
6
3
SSR21H-12150
1
6
3
1
6
3
1
1K
3
6
1
10K
3
6
1
100K
3
6
1
1M
3
6
1
10M
3
30M
Frequency (Hz)
1
6
3
1
6
3
SSR21H-13120
SSR21H-15083
1
6
3
1
6
3
SSR21H-20055
1
6
3
1
6
3
1
1K
3
6
1
10K
3
6
1
100K
3
6
1
1M
3
6
1
10M
3
30M
Frequency (Hz)
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0001_SSR21H • 10/14/2019
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AC Line Filters – Common Mode SSR Coils, 21H Series, High Impedance 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.
Export Control
For customers in Japan
For products that are controlled items subject to the “Foreign Exchange and Foreign Trade Law” of Japan, the export license
specified by the law is required for export.
For customers outside Japan
AC line filters should not be used or sold for the use in the development, production, stockpiling, or utilization of any
conventional weapons, mass-destruction weapons (nuclear, chemical, biological weapons, or missiles), or any other
weapons.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0001_SSR21H • 10/14/2019
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AC Line Filters – Common Mode SSR Coils, 21H Series, High Impedance Type
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.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0001_SSR21H • 10/14/2019
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