1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard LF0055_SCR31 • 11/26/2018
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
One world. One KEMET
Benets
• Proprietary S15H ferrite material
• High permeability
• High impedance
• Space saving due to high permeability material
• Operatingtemperaturerangefrom−25°Cto+120°C
• UL94V–0ameretardantratedbaseandcap
Overview
The KEMET SCR coils are common mode chokes with a
wide variety of characteristics. These toroidal coils are
designed with our proprietary high permeability ferrite
S15H cores and are useful in various noise countermeasure
elds.
Applications
• Audio-visual equipment
• Home appliances
• Power supplies
AC Line Filters
Common Mode SCR Coils, 31 Series
Part Number System
SCR 38- 130- S1R4 A015 J
Series Dimension Code
(See Dimensions)
Rated Current AC
(A) Phase Wire Diameter
(mm) Windings Inductance (mH)
Minimum
Terminal
Base Type
SCR Blank
22
25
25B
31B
38
38C
47
47B
xxx- = xx.x A
Examples:
050 = 5.0 A
350 = 35.0 A
105 = 10.5 A
Blank = Single-phase
S = Three-phase
R = Decimal
point
Examples:
0R55 = 0.55 mm
1R4 = 1.4 mm
A = Single
B = Double
C = Triple
xxx = xx.xmH
Examples:
015 = 1.5 mH
100 = 10 mH
Note: With exceptions,
see Table 1 for details.
J = Vertical
type
JH = Horizontal
type
2© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard LF0055_SCR31 • 11/26/2018
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
AC Line Filters – Common Mode SCR Coils, 31 Series
Magnetic Permeability of Ferrite Material
Inordertoachievemostecient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gure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
10 kHz
0
10,000
20,000
100 kHz 1 MHz 10 MHz 100 MHz 1 GHz
Effective Frequency Range
Magnetic Permeability
Ni-Zn Series
1400L
700L
S18H
S15H
10H
7H
5H
Mn-Zn Series
Lower magnetic permeability:
Higher noise suppression effect
in the higher frequency range
Higher magnetic permeability:
Higher noise suppression effect
in the lower frequency range
3© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard LF0055_SCR31 • 11/26/2018
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
AC Line Filters – Common Mode SCR Coils, 31 Series
Dimensions – Millimeters
Marking
32
1 4
(17)
(30)
N1 N2
Sn-0.75Cu
Solder plating
Adhesive
2points
48 Maximum
42 Maximum
35 Maximum 4 ± 1*
*Reference value.
Environmental Compliance
AllKEMETAClineltersareRoHSCompliant.
Table 1 – Ratings & Part Number Reference
Part Number Rated Current
AC (A)
Inductance
(mH)
Minimum
DC Resistance/
Line (mΩ)
Maximum
Temperature
Rise (K)
Maximum
Wire Diameter
(mm)
Weight (g)
Approximate
SCR31B-105-1R4A055JH
10.5
5.5
22.0
80
1.4
84
SCR31B-200-1R9A017JH
20.0
1.7
6.3
79
1.9
87
4© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard LF0055_SCR31 • 11/26/2018
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
AC Line Filters – Common Mode SCR Coils, 31 Series
Performance Characteristics
Frequency Characteristics
Packaging
Type Packaging Type Pieces Per Box
SCR31-JH Tray 80
Item Performance Characteristics
Rated Voltage 500 VAC/VDC
Withstanding Voltage 2,400 VAC (2 seconds, between lines)
Insulation Resistance >100MΩat500VDC(betweenlines)
Rated Current AC Range 10.5 – 20.0 A
Rated Inductance Range 1.7 – 5.5 mH minimum
Inductance Measurement Condition 10 kHz
Thermal Class E(120°C)
Operating Temperature Range −25°Cto+120°C(includeselftemperaturerise)
5© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard LF0055_SCR31 • 11/26/2018
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
AC Line Filters – Common Mode SCR Coils, 31 Series
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uctuationsshould
beminimizedtoavoidcondensationontheparts.Avoidstoragenearstrongmagneticelds,asthismightmagnetizethe
product.
Foroptimizedsolderability,AClinelters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
speciedbythelawisrequiredforexport.
For customers outside Japan
AClinelters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.
6© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard LF0055_SCR31 • 11/26/2018
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
AC Line Filters – Common Mode SCR Coils, 31 Series
KEMET Electronics Corporation Sales Offi ces
Foracompletelistofourglobalsalesoces,pleasevisitwww.kemet.com/sales.
Disclaimer
Allproductspeci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specicallydisclaims–anywarrantyconcerningsuitabilityforaspeci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.
KEMET is a registered trademark of KEMET Electronics Corporation.