EN IEC 60938-1:2021

SLOVENSKI STANDARD
01-oktober-2021
Nadomešča:
SIST EN 60938-1:2002
SIST EN 60938-1:2002/A1:2007
Fiksne dušilke za dušenje elektromagnetnega motenja - 1. del: Splošna
specifikacija (IEC 60938-1:2021)
Fixed inductors for electromagnetic interference suppression - Part 1: Generic
specification (IEC 60938-1:2021)
Drosseln zur Unterdrückung elektromagnetischer Störungen - Teil 1:
Fachgrundspezifikation (IEC 60938-1:2021)
Inductances fixes d’antiparasitage - Partie 1: Spécification générique (IEC 60938-1:2021)
Ta slovenski standard je istoveten z: EN IEC 60938-1:2021
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60938-1

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2021
ICS 29.100.10; 31.020 Supersedes EN 60938-1:1999 and all of its amendments
and corrigenda (if any)
English Version
Fixed inductors for electromagnetic interference suppression -
Part 1: Generic specification
(IEC 60938-1:2021)
Inductances fixes d'antiparasitage - Partie 1: Spécification Drosseln zur Unterdrückung elektromagnetischer
générique Störungen - Teil 1: Fachgrundspezifikation
(IEC 60938-1:2021) (IEC 60938-1:2021)
This European Standard was approved by CENELEC on 2021-07-21. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60938-1 E
European foreword
The text of document 40/2834/FDIS, future edition 3 of IEC 60938-1, prepared by IEC/TC 40
“Capacitors and resistors for electronic equipment” was submitted to the IEC-CENELEC parallel vote
and approved by CENELEC as EN IEC 60938-1:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022–04–21
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–07–21
document have to be withdrawn
This document supersedes EN 60938-1:1999 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60938-1:2021 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61558-1 NOTE Harmonized as EN IEC 61558-1
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60027 series Letter symbols to be used in electrical EN IEC 60027 series
technology
IEC 60050 series International electrotechnical vocabulary
(IEV)
IEC 60060-1 - High-voltage test techniques - Part 1: EN 60060-1 -
General definitions and test requirements
IEC 60062 - Marking codes for resistors and capacitors EN 60062 -
IEC 60068-1 - Environmental testing - Part 1: General EN 60068-1 -
and guidance
IEC 60068-2-1 - Environmental testing - Part 2–1: Tests - EN 60068-2-1 -
Test A: Cold
IEC 60068-2-2 - Environmental testing - Part 2–2: Tests - EN 60068-2-2 -
Test B: Dry heat
IEC 60068-2-6 - Environmental testing - Part 2–6: Tests - EN 60068-2-6 -
Test Fc: Vibration (sinusoidal)
IEC 60068-2-13 - Environmental testing - Part 2–13: Tests - EN IEC 60068-2-13 -
Test M: Low air pressure
IEC 60068-2-14 - Environmental testing - Part 2–14: Tests - EN 60068-2-14 -
Test N: Change of temperature
IEC 60068-2-17 - Basic environmental testing procedures - EN 60068-2-17 -
Part 2–17: Tests - Test Q: Sealing
IEC 60068-2-20 - Environmental testing - Part 2–20: Tests - EN IEC 60068-2-20 -
Test T: Test methods for solderability and
resistance to soldering heat of devices with
leads
IEC 60068-2-21 - Environmental testing - Part 2–21: Tests - EN 60068-2-21 -
Test U: Robustness of terminations and
integral mounting devices
IEC 60068-2-27 - Environmental testing - Part 2–27: Tests - EN 60068-2-27 -
Test Ea and guidance: Shock
IEC 60068-2-30 - Environmental testing - Part 2–30: Tests - EN 60068-2-30 -
Test Db: Damp heat, cyclic
IEC 60068-2-45 - Basic environmental testing procedures - EN 60068-2-45 -
Part 2–45: Tests - Test XA and guidance:
Immersion in cleaning solvents
IEC 60068-2-58 - Environmental testing - Part 2–58: Tests - EN 60068-2-58 -
Test Td: Test methods for solderability,
resistance to dissolution of metallization
and to soldering heat of surface mounting
devices (SMD)
IEC 60068-2-78 - Environmental testing - Part 2–78: Tests - EN 60068-2-78 -
Test Cab: Damp heat, steady-state
IEC 60335-1 - Household and similar electrical appliances - -
- Part 1: General requirements
IEC 60617 - Graphical symbols for diagrams - -
IEC 60695-2-11 - Fire hazard testing - Part 2–11: EN 60695-2-11 -
Glowing/hot-wire based test methods -
Glow-wire flammability test method for end
products (GWEPT)
IEC 60695-2-12 - Fire hazard testing - Part 2–12: EN 60695-2-12 -
Glowing/hot-wire based test methods -
Glow-wire flammability index (GWFI) test
method for materials
IEC 60695-2-13 - Fire hazard testing - Part 2–13: EN 60695-2-13 -
Glowing/hot-wire based test methods -
Glow-wire ignition temperature (GWIT) test
method for materials
IEC 60695-10-2 - Fire hazard testing - Part 10–2: Abnormal EN 60695-10-2 -
heat - Ball pressure test method
IEC 60695-11-10 - Fire hazard testing - Part 11–10: Test EN 60695-11-10 -
flames - 50 W horizontal and vertical flame
test methods
IEC 60695-11-20 - Fire hazard testing - Part 11–20: Test EN 60695-11-20 -
flames - 500 W flame test method
IEC 80000-6 - Quantities and units - Part 6: EN 80000-6 -
Electromagnetism
CISPR 17 - Methods of measurement of the EN 55017 -
suppression characteristics of passive
EMC filtering devices
IEC 60938-1 ®
Edition 3.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed inductors for electromagnetic interference suppression –

Part 1: Generic specification
Inductances fixes d’antiparasitage –

Partie 1: Spécification générique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10; 31.020 ISBN 978-2-8322-9883-1

– 2 – IEC 60938-1:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and conventions . 9
3.1 Terms and definitions . 9
3.2 Conventions . 11
4 General requirements . 11
4.1 General . 11
4.2 Preferred values . 12
4.2.1 General . 12
4.2.2 Rated current . 12
4.2.3 Temperature de-rated current . 12
4.3 Information to be given in a detail specification . 12
4.3.1 General . 12
4.3.2 Outline drawing and dimensions . 12
4.3.3 Mounting . 13
4.3.4 Ratings and characteristics . 13
4.4 Insulated inductors . 13
4.5 Marking . 13
5 Tests and measurement procedures . 14
5.1 General . 14
5.2 Standard atmospheric conditions . 14
5.3 Visual examination . 14
5.4 Insulation resistance . 14
5.5 Voltage test . 15
5.6 Inductance . 16
5.7 Resistance . 16
5.8 Insertion loss . 16
5.9 Temperature rise . 16
5.10 Impulse voltage. 16
5.11 Endurance . 17
5.12 Robustness of terminations . 17
5.13 Vibration . 17
5.14 Shock . 17
5.15 Resistance to soldering heat . 18
5.16 Solderability . 20
5.16.1 General . 20
5.16.2 Preconditioning . 20
5.16.3 Test procedure . 21
5.16.4 Final inspection, measurements, and requirements. 21
5.17 Rapid change of temperature . 21
...