Passive filter units for electromagnetic interference suppression - Part 2: Sectional specification - Passive filter units for which safety tests are appropriate - Test methods and general requirements

IEC 60939-2:2005 applies to passive filter units for electromagnetic interference suppression which fall within the scope of the Generic Specification IEC 60939-1. The scope of this Sectional specification is restricted to passive filter units for which safety tests are appropriate. This implies that filters specified according to this Sectional specification will either be connected to mains supplies, when compliance with the mandatory tests of Table 3 is necessary, or used in other circuit positions where the equipment specification prescribes that some or all of these safety tests are required. The contents of the corrigendum of November 2005 have been included in this copy.

Filtres passifs d'antiparasitage - Partie 2: Spécification intermédiaire - Filtres passifs pour lesquels des essais de sécurité sont appropriés - Méthodes d’essai et exigences générales

L'IEC 60939-2:2005 s’applique aux filtres passifs d’antiparasitage qui entrent dans le domaine d’application de la spécification générique IEC 60939-1.
Le domaine d’application de la présente spécification intermédiaire est restreint aux filtres passifs pour lesquels des essais de sécurité sont appropriés. Par conséquent, les filtres spécifiés selon la présente spécification intermédiaire sont connectés aux réseaux d’alimentation, lorsque la conformité aux essais obligatoires présentés dans le Tableau 3 est nécessaire, ou sont utilisés dans d’autres endroits du circuit pour lesquels la spécification de l’équipement prescrit que tout ou partie de ces essais de sécurité est exigé.
La présente spécification intermédiaire s’applique aux filtres passifs connectés à un réseau d’alimentation en courant alternatif ou à une autre alimentation dont la tension nominale ne dépasse pas 1 000 V en courant alternatif, et dont la fréquence nominale ne dépasse pas 400 Hz ou 1 000 V en courant continu.
Les principales modifications effectuées entre la première et la seconde édition comprennent:
– Les mesurages de la capacité et de la tangente de l’angle de perte (tan δ), la résistance de ligne continue ou la chute de tension continue au courant assigné, la tension de choc, l’inflammabilité passive, la surcharge de courant, la résistance du marquage au solvant, la résistance des composants au solvant et l’inflammabilité active ont été ajoutés à l’Article 4, procédures d’essai et de mesure.
Le contenu du corrigendum de novembre 2005 a été inclus dans la présente copie.

General Information

Status
Published
Publication Date
16-Aug-2023
Current Stage
PPUB - Publication issued
Start Date
15-Apr-2005
Completion Date
10-Feb-2005
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IEC 60939-2:2005 - Passive filter units for electromagnetic interference suppression - Part 2: Sectional specification - Passive filter units for which safety tests are appropriate - Test methods and general requirements Released:2/10/2005 Isbn:9782832266861
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IEC 60939-2:2005+AMD1:2023 CSV - Passive filter units for electromagnetic interference suppression - Part 2: Sectional specification - Passive filter units for which safety tests are appropriate - Test methods and general requirements Released:8/17/2023
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INTERNATIONAL IEC
STANDARD 60939-2
Second edition
2005-02
Passive filter units for electromagnetic
interference suppression –
Part 2:
Sectional specification –
Passive filter units for which safety
tests are appropriate –
Test methods and general requirements

Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (www.iec.ch/searchpub) enables you to
search by a variety of criteria including text searches, technical committees
and date of publication. On-line information is also available on recently issued
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please contact the Customer Service Centre:

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Fax: +41 22 919 03 00
INTERNATIONAL IEC
STANDARD 60939-2
Second edition
2005-02
Passive filter units for electromagnetic
interference suppression –
Part 2:
Sectional specification –
Passive filter units for which safety
tests are appropriate –
Test methods and general requirements
© IEC 2005 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
X
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60939-2  IEC:2005(E)
CONTENTS
FOREWORD.4

1 General .6
1.1 Scope.6
1.2 Normative references .6
1.3 Information to be given in a detail specification .7
1.4 Definitions .8
1.5 Marking .9
2 Preferred ratings and characteristics .10
2.1 Preferred characteristics .10
2.2 Preferred values of ratings .10
3 Quality assessment procedures.11
3.1 Primary stage of manufacture.11
3.2 Structurally similar filters .11
3.3 Certified records of released lots.11
3.4 Approval testing .11
3.5 Quality conformance inspection.13
4 Test and measurement procedures.18
4.1 Earth inductors incorporated in filters .18
4.2 Capacitance and tan δ measurements .18
4.3 Visual examination and check of dimensions.18
4.4 Voltage proof.19
4.5 Insulation resistance .20
4.6 DC line resistance or voltage drop at rated current.20
4.7 Insertion loss.21
4.8 Discharge resistance.21
4.9 Robustness of terminations .22
4.10 Resistance to soldering heat .22
4.11 Solderability .22
4.12 Rapid change of temperature .22
4.13 Vibration.23
4.14 Bump .23
4.15 Shock.24
4.16 Container sealing .24
4.17 Climatic sequence .25
4.18 Damp heat, steady state.26
4.19 Temperature rise.26
4.20 Impulse voltage .28
4.21 Endurance.29
4.22 Charge and discharge .31
4.23 Passive flammability.32
4.24 Current overload .32
4.25 Solvent resistance of the marking.32
4.26 Component solvent resistance.33
4.27 Active flammability .33

60939-2  IEC:2005(E) – 3 –
Annex A (normative) Test schedule for qualification approval – Assessment level D / DZ .34
Annex B (normative) Test schedule for safety requirements only .38
Annex C (normative) Circuit for the impulse voltage test .40
Annex D (normative) Circuit for the endurance test .42
Annex E (normative) Declaration of design .43

Figure 1 – Impulse wave form .29
Figure C.1 – Impulse voltage test circuit .40

Table 1 – Classification of class X capacitors .8
Table 2 – Classification of class Y capacitors .9
Table 3 – Tests concerning safety requirements only.14
Table 4 – Sampling plan – Safety and performance tests qualification approval –
Assessment level D / DZ.15
Table 5 – Lot-by-lot-tests – Assessment level D / DZ .16
Table 6 – Lot-by-lot test – Safety tests only approval .16
Table 7 – Periodic tests – Assessment level D / DZ .17
Table 8 – Creepage distances and clearances .18
Table 9 – Voltage proof.19
Table 10 – Insulation resistance .20
Table 11 – Preferred severities .24
Table 12 – Measurements and requirements after charge and discharge .31
Table A.1 – Test schedule for qualification approval – Assessment level D / DZ .34
Table B.1 – Test schedule for safety requirements only .38
Table C.1 – Values of C , C , R , R , C .40
X T P S P
Table C.2 – Values and tolerances of C , t , t .41
x r d
– 4 – 60939-2  IEC:2005(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
PASSIVE FILTER UNITS FOR ELECTROMAGNETIC
INTERFERENCE SUPPRESSION –
Part 2: Sectional specification –
Passive filter units for which safety tests are appropriate –
Test methods and general requirements

FOREWORD
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patent r
...


IEC 60939-2 ®
Edition 2.0 2005-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Passive filter units for electromagnetic interference suppression –
Part 2: Sectional specification – Passive filter units for which safety tests are
appropriate – Test methods and general requirements

Filtres passifs d'antiparasitage –
Partie 2: Spécification intermédiaire – Filtres passifs pour lesquels des essais de
sécurité sont appropriés – Méthodes d’essai et exigences générales
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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(IEV) online.
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further assistance, please contact the Customer Service
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Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

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IEC 60939-2 ®
Edition 2.0 2005-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Passive filter units for electromagnetic interference suppression –

Part 2: Sectional specification – Passive filter units for which safety tests are

appropriate – Test methods and general requirements

Filtres passifs d'antiparasitage –

Partie 2: Spécification intermédiaire – Filtres passifs pour lesquels des essais

de sécurité sont appropriés – Méthodes d’essai et exigences générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.160  ISBN 978-2-8322-6686-1

– 2 – IEC 60939-2:2005  IEC 2005
CONTENTS
FOREWORD . 4

1 General . 6
1.1 Scope . 6
1.2 Normative references . 6
1.3 Information to be given in a detail specification . 7
1.4 Definitions . 8
1.5 Marking . 9
2 Preferred ratings and characteristics . 10
2.1 Preferred characteristics . 10
2.2 Preferred values of ratings . 10
3 Quality assessment procedures . 11
3.1 Primary stage of manufacture . 11
3.2 Structurally similar filters . 11
3.3 Certified records of released lots . 11
3.4 Approval testing . 11
3.5 Quality conformance inspection . 13
4 Test and measurement procedures . 18
4.1 Earth inductors incorporated in filters . 18
4.2 Capacitance and tan δ measurements . 18
4.3 Visual examination and check of dimensions . 18
4.4 Voltage proof . 19
4.5 Insulation resistance . 20
4.6 DC line resistance or voltage drop at rated current . 20
4.7 Insertion loss . 21
4.8 Discharge resistance . 21
4.9 Robustness of terminations . 22
4.10 Resistance to soldering heat . 22
4.11 Solderability . 22
4.12 Rapid change of temperature . 22
4.13 Vibration. 23
4.14 Bump . 23
4.15 Shock . 24
4.16 Container sealing . 24
4.17 Climatic sequence . 25
4.18 Damp heat, steady state . 26
4.19 Temperature rise . 26
4.20 Impulse voltage . 28
4.21 Endurance . 29
4.22 Charge and discharge . 31
4.23 Passive flammability . 32
4.24 Current overload . 32
4.25 Solvent resistance of the marking . 32
4.26 Component solvent resistance . 33
4.27 Active flammability . 33

Annex A (normative) Test schedule for qualification approval – Assessment level D / DZ . 34
Annex B (normative) Test schedule for safety requirements only . 38
Annex C (normative) Circuit for the impulse voltage test . 40
Annex D (normative) Circuit for the endurance test . 42
Annex E (normative) Declaration of design . 43

Figure 1 – Impulse wave form . 29
Figure C.1 – Impulse voltage test circuit . 40
Figure D.1 – Endurance test circuit . 42

Table 1 – Classification of class X capacitors . 8
Table 2 – Classification of class Y capacitors . 9
Table 3 – Tests concerning safety requirements only . 14
Table 4 – Sampling plan – Safety and performance tests qualification approval –
Assessment level D / DZ . 15
Table 5 – Lot-by-lot-tests – Assessment level D / DZ . 16
Table 6 – Lot-by-lot test – Safety tests only approval . 16
Table 7 – Periodic tests – Assessment level D / DZ . 17
Table 8 – Creepage distances and clearances . 18
Table 9 – Voltage proof. 19
Table 10 – Insulation resistance . 20
Table 11 – Preferred severities . 24
Table 12 – Measurements and requirements after charge and discharge . 31
Table A.1 – Test schedule for qualification approval – Assessment level D / DZ . 34
Table B.1 – Test schedule for safety requirements only . 38
Table C.1 – Values of C , C , R , R , C . 40
X T P S P
Table C.2 – Values and tolerances of C , t , t .
...


IEC 60939-2 ®
Edition 2.1 2023-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Passive filter units for electromagnetic interference suppression –
Part 2: Sectional specification – Passive filter units for which safety tests are
appropriate – Test methods and general requirements

Filtres passifs d’antiparasitage –
Partie 2: Spécification intermédiaire – Filtres passifs pour lesquels des essais de
sécurité sont appropriés – Méthodes d’essai et exigences générales

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - Découvrez notre puissant moteur de recherche et consultez
webstore.iec.ch/advsearchform gratuitement tous les aperçus des publications. Avec un
La recherche avancée permet de trouver des publications IEC abonnement, vous aurez toujours accès à un contenu à jour
en utilisant différents critères (numéro de référence, texte, adapté à vos besoins.
comité d’études, …). Elle donne aussi des informations sur les
projets et les publications remplacées ou retirées. Electropedia - www.electropedia.org

Le premier dictionnaire d'électrotechnologie en ligne au monde,
IEC Just Published - webstore.iec.ch/justpublished
avec plus de 22 300 articles terminologiques en anglais et en
Restez informé sur les nouvelles publications IEC. Just
français, ainsi que les termes équivalents dans 19 langues
Published détaille les nouvelles publications parues.
additionnelles. Egalement appelé Vocabulaire
Disponible en ligne et une fois par mois par email.
Electrotechnique International (IEV) en ligne.

Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC Products & Services Portal - products.iec.ch

IEC 60939-2 ®
Edition 2.1 2023-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Passive filter units for electromagnetic interference suppression –
Part 2: Sectional specification – Passive filter units for which safety tests are
appropriate – Test methods and general requirements
Filtres passifs d’antiparasitage –
Partie 2: Spécification intermédiaire – Filtres passifs pour lesquels des essais de
sécurité sont appropriés – Méthodes d’essai et exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.160 ISBN 978-2-8322-7417-0

IEC 60939-2 ®
Edition 2.1 2023-08
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Passive filter units for electromagnetic interference suppression –
Part 2: Sectional specification – Passive filter units for which safety tests are
appropriate – Test methods and general requirements

Filtres passifs d’antiparasitage –
Partie 2: Spécification intermédiaire – Filtres passifs pour lesquels des essais de
sécurité sont appropriés – Méthodes d’essai et exigences générales

– 2 – IEC 60939-2:2005+AMD1:2023 CSV
 IEC 2023
CONTENTS
FOREWORD . 4
1 General . 6
1.1 Scope . 6
1.2 Normative references . 6
1.3 Information to be given in a detail specification . 7
1.4 Terms and definitions . 8
1.5 Marking . 10
2 Preferred ratings and characteristics . 10
2.1 Preferred characteristics . 10
2.2 Preferred values of ratings . 11
3 Quality assessment procedures . 11
3.1 Primary stage of manufacture . 11
3.2 Structurally similar filters . 11
3.3 Certified records of released lots . 11
3.4 Approval testing . 11
3.5 Quality conformance inspection . 13
4 Test and measurement procedures . 19
4.1 Earth inductors incorporated in filters . 19
4.2 Capacitance and tan δ measurements . 19
4.3 Visual examination and check of dimensions . 19
4.4 Voltage proof . 20
4.5 Insulation resistance . 21
4.6 DC line resistance or voltage drop at rated current . 22
4.7 Insertion loss . 22
4.8 Discharge resistance . 23
4.9 Robustness of terminations . 23
4.10 Resistance to soldering heat . 23
4.11 Solderability . 24
4.12 Rapid change of temperature . 24
4.13 Vibration. 24
4.14 Bump . 24
4.15 Shock . 25
4.16 Container sealing . 26
4.17 Climatic sequence . 26
4.18 Damp heat, steady state . 27
4.19 Temperature rise . 28
4.20 Impulse voltage . 29
4.21 Endurance . 30
4.22 Charge and discharge . 32
4.23 Passive flammability . 33
4.24 Current overload . 33
4.25 Solvent resistance of the marking . 33
4.26 Component solvent resistance . 34
4.27 Active flammability . 34
Annex A (normative) Test schedule for qualification approval –
Assessment level D / DZ . 35
Annex B (normative) Test schedule for safety requirements only . 39

 IEC 2023
Annex C (normative) Circuit for the impulse voltage test . 41
Annex D (normative) Circuit for the endurance test . 43
Annex E (normative) Declaration of design . 44
Bibliography .  45
Figure 1 – Impulse wave form . 30
Figure C.1 – Impulse voltage test circuit . 41
Figure D.1 – Endurance test circuit . 43
Table 1 – Classification of class X capacitors . 8
Table 2 – Classification of class Y capacitors . 9
Table 3 – Tests concerning safety requirements only . 15
Table 4 – Sampling plan – Safety and performance tests qualification approval –
Assessment level D / DZ . 16
Table 5 – Lot-by-lot-tests – Assessment level D / DZ . 17
Table 6 – Lot-by-lot test – Safety tests only approval . 17
Table 7 – Periodic tests – Assessment level D / DZ . 18
Table 13 – Minimum copper cross-sectional area of earth inductor’s winding . 19
Table 8 – Creepage distances and clearances . 20
Table 9 – Voltage proof.
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