IEC 60384-14:2013/AMD1:2016

IEC 60384-14 ®
Edition 4.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Fixed capacitors for use in electronic equipment –
Part 14: Sectional specification – Fixed capacitors for electromagnetic
interference suppression and connection to the supply mains

Condensateurs fixes utilisés dans les équipements électroniques –
Partie 14: Spécification intermédiaire – Condensateurs fixes d'antiparasitage
et raccordement à l'alimentation

IEC 60384-14:2013-06/AMD1:2016-07(en-fr)

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 Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@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.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales, électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres et en français, ainsi que les termes équivalents dans 15
documents de l'IEC. Disponible pour PC, Mac OS, tablettes langues additionnelles. Egalement appelé Vocabulaire
Android et iPad. Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC 65 000 entrées terminologiques électrotechniques, en anglais
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Restez informé sur les nouvelles publications IEC. Just Service Clients - webstore.iec.ch/csc
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 60384-14 ®
Edition 4.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Fixed capacitors for use in electronic equipment –

Part 14: Sectional specification – Fixed capacitors for electromagnetic

interference suppression and connection to the supply mains

Condensateurs fixes utilisés dans les équipements électroniques –

Partie 14: Spécification intermédiaire – Condensateurs fixes d'antiparasitage

et raccordement à l'alimentation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.10 ISBN 978-2-8322-3509-6

– 2 – IEC 60384-14:2013/AMD1:2016
© IEC 2016
FOREWORD
This amendment has been prepared by IEC technical committee 40: Capacitors and resistors
for electronic equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
40/2463/FDIS 40/2469/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1.1 Scope
Replace, in the scope, the value "1 000 V d.c." by "1 500 V d.c."
1.4 Information to be given in a detail specification
Add, after the third paragraph and before the NOTE, the following new paragraph:
Requirements for safety approved a.c. capacitors to be used in d.c. applications are found in
Annex H.
4.12 Damp heat, steady state
Add, after the first paragraph, the following new paragraph:
Requirements for capacitors used in high humidity applications are contained in Annex I.
Add, after the existing Annex G, the new Annex H and Annex I, as follows:

© IEC 2016
Annex H
(normative)
Use of safety approved a.c. rated capacitors in d.c. applications
H.1 Overview
This annex gives additional requirements for a.c. EMI suppression capacitors for which safety
approval is sought and which are connected to a d.c. supply with nominal voltage not
exceeding 1 500 V d.c.
If a safety approved capacitor fulfils the requirements of this annex, it is qualified at the d.c.
rated voltage exceeding its approved a.c. rated voltage, without changing the capacitor class.
H.2 Background
Safety capacitors approved to this standard are a.c. capacitors which are essentially designed
for applications where a.c. voltage is applied.
They have been allowed to be used in d.c. supplies having the same voltage as the a.c. r.m.s.
rated voltage of the capacitors. (See 1.5.1, Note 1 to entry).
The class of the capacitors, such as X1 and Y1, is defined according to their peak impulse
withstanding voltage and the type of insulation bridged.
A capacitor used for a.c. voltage application is subjected to the voltage waveform with peak
voltage equal to r.m.s. voltage times square root of two, which is alternating polarity in a wave
cycle, so that safety approved capacitors theoretically can withstand at least a d.c. voltage
equivalent to their a.c. rated voltage times square root of two.
H.3 Terms and definitions
H.3.1
d.c. rated voltage
U d.c.
R
maximum d.c. operating voltage, which may be applied continuously to the terminations of a
capacitor at any temperature between the lower and the upper category temperatures
Note 1 to entry: This term and designation (U d.c.) are used only for a capacitor specified with d.c. rated voltage
R
exceeding its a.c. r.m.s. rated voltage.
Note 2 to entry: This definition replaces that given in IEC 60384-14:2013, 1.5.1.
H.4 Additional requirement for use of X- and Y-capacitors in d.c. applications
A capacitor, which is specified for a d.c. rated voltage exceeding the a.c. r.m.s. rated voltage,
shall fulfil the requirements specified in Table H.1 in addition to the tests prescribed in
Table 3.
– 4 – IEC 60384-14:2013/AMD1:2016
© IEC 2016
Table H.1 – Additional test conditions
Type Maximum U d.c. Test voltage d.c. Endurance test Damp heat, steady
R
(Test A) (d.c.) state test
(according 4.2.1)
X1 1 500 V According to 4.14 According to 4.12,
2,15 × U d.c.
R
using d.c. rated but with d.c. rated
X2 1 500 V
voltage instead of
voltage applied to
U , without voltage the whole sample.
a
R
Y1 1 500 V 4 × U d.c.
R
increased to U .
S
a
Y2 1 500 V 2,15 × U d.c.
R
a
Y4 450 V
2,15 × U d.c.
R
a
If an a.c. test voltage is used instead of a d.c. voltage for Y-capacitors, it shall be not less than 0,666 × d.c.
test voltage in Table H.1.
H.5 Creepage and clearance distances
When a capacitor approved by this annex is used for a specific application, it shall be
confirmed that creepage and clearance distances of the capacitor meet the requirements of
the related standards for the application.
NOTE Examples of the specific standards and the requirements mentioned above, see IEC 60939-3: Table 6 and
Table 7.
© IEC 2016
Annex I
(normative)
Humidity robustness grades for applications, where high
stability under high humidity operating conditions is required
I.1 Overview
In addition to the description of preferred climatic categories in 2.1.1 and test damp heat,
steady state in 4.12, this annex describes specific humidity robustness grades and
requirements for applications, where high stability under high humidity operating conditions is
required.
I.2 Humidity robustness grades
For high humidity applications the Grades (I) robustness under humidity, Grade (II)
robustness under high humidity and Grade (III) high robustness under high humidity are
defined.
I.2.1 Grade (I) robustness under humidity
To verify Grade (I), either test condition A or B shall be selected by the manufacturer. For
requirements, see Table I.1. In case the capacitors are specified for a.c. and d.c. applications,
one sample shall be tested with the rated a.c. voltage, and one sample shall be tested with
rated d.c. voltage.
Test condition A: Test damp heat, steady state; 40 °C / 93 % RH duration 21 days, rated
voltage applied.
Test condition B: Test damp heat, steady state; 85 °C / 85 % RH duration 168 h, rated
voltage applied.
NOTE Test condition B is a substitutional acceleration test for test condition A.
I.2.2 Grade (II) robustness under high humidity
To verify Grade (II), either test condition A or B shall be selected by the manufacturer. For
requirements see Table I.1. In case the capacitors are specified for a.c. and d.c. applications,
one sample shall be tested with the rated a.c. voltage, and one sample shall be tested with
rated d.c. voltage.
Test condition A: Test damp heat, steady state; 40 °C / 93 % RH duration 56 days, rated
voltage applied.
Test condition B: Test damp heat, steady state; 85 °C / 85 % RH duration 500 h, rated
voltage applied.
NOTE Test condition B is a substitutional acceleration test for test condition A.
I.2.3 Grade (III) high robustness under high humidity
To verify Grade (III), either test condition A or B shall be selected by the manufacturer. For
requirements, see Table I.1. In case the capacitors are specified for a.c. and d.c. applications,
one sample shall be tested with the rated a.c. voltage, and one sample shall be tested with
rated d.c. voltage.
– 6 – IEC 60384-14:2013/AMD1:2016
© IEC 2016
Test condition A: Test damp heat, steady state; 60 °C / 93 % RH duration 56 days, rated
voltage applied.
Test condition B: Test damp heat, steady state; 85 °C / 85 % RH duration 1 000 h, rated
voltage applied.
NOTE Test condition B is a substitutional acceleration test for test condition A.
Table I.1 – Requirements
Measurement Measuring method Requirements
Capacitance 4.2.2 Metalized capacitors: ∆C  ≤10 %
Ceramic capacitors:  ∆C  ≤15 %
Tangent of loss angle 4.2.3
The increase of tan δ over the value measured in
Group 0 shall not exceed
(metallized capacitors only)
a
0,024 for C ≤ 1 µF
N
a
0,015 for C >
...