IEC 63093-13:2019
(Main)Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 13: PQ-cores
Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 13: PQ-cores
IEC 63093-13:2019 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of PQ-cores and low-profile PQI-cores made of ferrite, and the locations of their terminal pins on a 2,54 mm printed wiring grid in relation to the base outlines of the cores. It also gives guidance on allowable limits of surface irregularities applicable to PQ-cores in accordance with the relevant generic specification.
This first edition cancels and replaces the second edition of IEC 62317-13 published in 2015 and the first edition of IEC 60424-8 published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous editions of IEC 62317-13 and IEC 60424-8:
a) IEC 63093-13 integrates IEC 62317-13 and IEC 60424-8;
b) IEC 60424-8:2015, Table 1, has been included in Annex B as Table B.1.
The contents of the corrigendum of May 2024 have been included in this copy.
Noyaux ferrites - Lignes directrices relatives aux dimensions et aux limites des irrégularités de surface - Partie 13: Noyaux PQ
L'IEC 63093-13:2019 spécifie les dimensions qui jouent un rôle majeur dans l'interchangeabilité mécanique d'une gamme préférentielle de noyaux PQ et de noyaux PQI extra plats constitués de ferrite, et les emplacements de leurs broches de sortie sur une grille aux pas de 2,54 mm d'un circuit imprimé par rapport aux encombrements de base des noyaux. Elle fournit également des recommandations sur les limites des irrégularités de surface admissibles des noyaux PQ, conformément à la spécification générique applicable.
Cette première édition annule et remplace la deuxième édition de l'IEC 62317-13 parue en 2015 et la première édition de l'IEC 60424-8 parue en 2015. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport aux éditions précédentes de l'IEC 6231713 et l'IEC 60424-8:
a) l'IEC 63093-13 intègre l'IEC 62317-13 et l'IEC 60424-8;
b) le Tableau 1 de l'IEC 60424-8:2015 est ajouté en tant que Tableau B.1 de l'Annexe B.
Le contenu du corrigendum de mai 2024 a été pris en considération dans cet exemplaire.
General Information
Relations
Standards Content (Sample)
IEC 63093-13 ®
Edition 1.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Guidelines on dimensions and the limits of surface irregularities –
Part 13: PQ-cores
Noyaux ferrites – Lignes directrices relatives aux dimensions et aux limites des
irrégularités de surface –
Partie 13: Noyaux PQ
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 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 Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
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 - Electropedia - www.electropedia.org
webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au
La recherche avancée permet de trouver des publications IEC monde, avec plus de 22 000 articles terminologiques en
en utilisant différents critères (numéro de référence, texte, anglais et en français, ainsi que les termes équivalents dans
comité d’études,…). Elle donne aussi des informations sur les 16 langues additionnelles. Egalement appelé Vocabulaire
projets et les publications remplacées ou retirées. Electrotechnique International (IEV) en ligne.
IEC Just Published - webstore.iec.ch/justpublished Glossaire IEC - std.iec.ch/glossary
Restez informé sur les nouvelles publications IEC. Just 67 000 entrées terminologiques électrotechniques, en anglais
Published détaille les nouvelles publications parues. et en français, extraites des articles Termes et Définitions des
Disponible en ligne et une fois par mois par email. publications IEC parues depuis 2002. Plus certaines entrées
antérieures extraites des publications des CE 37, 77, 86 et
Service Clients - webstore.iec.ch/csc CISPR de l'IEC.
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 63093-13 ®
Edition 1.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Guidelines on dimensions and the limits of surface irregularities –
Part 13: PQ-cores
Noyaux ferrites – Lignes directrices relatives aux dimensions et aux limites des
irrégularités de surface –
Partie 13: Noyaux PQ
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-6506-2
– 2 – IEC 63093-13:2019 © IEC 2019
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Primary dimensions . 7
4.1 General . 7
4.2 Dimensions of PQ-cores . 7
4.2.1 Principal dimensions . 7
4.2.2 Effective parameter and A values . 7
min
4.3 Dimensional limits for coil formers. 7
4.4 Pin locations and base outlines . 7
4.5 Pin diameter . 7
5 Mounting . 12
6 Definitions and limits of surface irregularities . 13
6.1 General . 13
6.2 Examples of surface irregularities . 13
6.3 Chips and ragged edges . 13
6.3.1 General . 13
6.3.2 Chips and ragged edges located on the mating surface . 13
6.3.3 Chips and ragged edges located on the other surfaces . 14
6.4 Cracks . 16
6.5 Pull-out . 17
6.6 Crystallites . 17
6.7 Flash . 17
6.8 Pores . 18
Annex A (informative) PQ-cores design . 19
Annex B (informative) Examples of allowable areas of chips . 20
Annex C (normative) Example of a gauge to check the dimensions of PQ-cores
meeting the primary dimensions . 21
C.1 General . 21
C.2 Procedure and requirements . 22
Figure 1 – Dimensions of PQ-cores . 7
Figure 2 – Dimensions of low-profile PQI-cores . 9
Figure 3 – Main dimensions of coil formers for PQ-cores . 11
Figure 4 – Pin locations and base outlines viewed from the upper side of the board . 12
Figure 5 – Examples of surface irregularities . 13
Figure 6 – Chips and ragged edges locations. 14
Figure 7 – Cracks locations. 16
Figure 8 – Pull-out location . 17
Figure 9 – Crystallite location. 17
Figure 10 – Flash location . 18
Figure 11 – Pore location . 18
Figure C.1 – Gauge dimensions . 21
Table 1 – Dimensions of PQ-cores . 8
Table 2 – Dimensions of low-profile PQI-cores . 9
Table 3 – Effective parameter and A values for PQ-cores . 10
min
Table 4 – Effective parameter and A values for low-profile PQI-cores . 10
min
Table 5 – Dimensional limits for coil formers for PQ-cores . 11
Table 6 – Area and length reference of irregularities for visual inspection . 15
Table 7 – Limits for cracks . 16
Table B.1 – Allowable areas of chips in mm . 20
Table C.1 – Gauge dimensions . 21
– 4 – IEC 63093-13:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –
Part 13: PQ-cores
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. I
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.