Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 1: General specification

This part of IEC 63093 specifies the dimensions and allowable limits of surface irregularities
of ferrite cores.
It is intended that this document includes ferrite cores which are widely used and referenced
in industry, either because they are included in national standards, or because they are seen
to have broad-based use in industry. Where applicable, it is intended that the existing
industrial name for each standard part appears with the part within this series.
It is intended that this document excludes ferrite cores which are specialty cores with limited
use. Also, special cores which are only marginal variations upon standard cores are excluded.
A ferrite core produced by only one or two suppliers can generally be considered a specialty
part, and not suitable as a standard core within this series. A ferrite core produced by three or
more competing manufacturers can generally be considered to be a candidate to be included
in this series.
IEC publishes electrical standards for families of ferrite cores, as well as this series of
dimensional standards for families of ferrite cores. Modifications to the ferrite cores listed in
one type of standard are reflected in the other type.
This document is considered as a general specification useful in the dialogue between ferrite
core suppliers and users about surface irregularities.

Ferritkerne - Richtlinien zu Maßen und Grenzen von Oberflächenbeschädigungen - Teil 1: Allgemeine Festlegungen

Noyaux ferrites - Lignes directrices relatives aux dimensions et aux limites des irrégularités de surface - Partie 1: Spécification générale

L'IEC 63093-1:2020 spécifie les dimensions et les limites admissibles des irrégularités de surface des noyaux ferrites. Il est prévu que le présent document exclue les noyaux ferrites qui sont des noyaux spécialisés dont l'utilisation est limitée. En outre, les noyaux spécialisés qui ne présentent que des variations marginales par rapport aux noyaux normalisés sont exclus. L’IEC publie des normes électriques pour des familles de noyaux ferrites, ainsi que cette série de normes sur les dimensions pour des familles de noyaux ferrites. Les modifications apportées aux noyaux ferrites énumérés dans un type de norme sont reproduites dans l'autre type. Le présent document est considéré comme une spécification générale utile au dialogue entre les fournisseurs de noyaux ferrites et leurs utilisateurs, portant sur les irrégularités de surface. Cette première édition annule et remplace la deuxième édition de l’IEC 60424-1 parue en 2015 et la première édition de l’IEC 62317-1 parue en 2007. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport aux éditions précédentes de l’IEC 60424-1 et l’IEC 62317-1: a) le présent document réunit l’IEC 60424-1 et l’IEC 62317-1.

Feritna jedra - Smernice o merah in mejnih vrednostih površinskih nepravilnosti - 1. del: Splošna specifikacija

General Information

Status
Published
Publication Date
03-Sep-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
10-Aug-2020
Due Date
15-Oct-2020
Completion Date
04-Sep-2020

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SLOVENSKI STANDARD
SIST EN IEC 63093-1:2020
01-oktober-2020
Nadomešča:
SIST EN 60424-1:2016
SIST EN 62317-1:2007

Feritna jedra - Smernice o merah in mejnih vrednostih površinskih nepravilnosti -

1. del: Splošna specifikacija

Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 1:

General specification
Ta slovenski standard je istoveten z: EN IEC 63093-1:2020
ICS:
29.100.10 Magnetne komponente Magnetic components
SIST EN IEC 63093-1:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 63093-1:2020
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SIST EN IEC 63093-1:2020
EUROPEAN STANDARD EN IEC 63093-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2020
ICS 29.100.10 Supersedes EN 60424-1:2016, EN 62317-1:2007 and all
of its amendments and corrigenda (if any)
English Version
Ferrite cores - Guidelines on dimensions and the limits of
surface irregularities - Part 1: General specification
(IEC 63093-1:2020)

Noyaux ferrites - Lignes directrices relatives aux Ferritkerne - Richtlinien zu Maßen und Grenzen von

dimensions et aux limites des irrégularités de surface - Oberflächenbeschädigungen - Teil 1: Allgemeine

Partie 1: Spécification générale Festlegungen
(IEC 63093-1:2020) (IEC 63093-1:2020)

This European Standard was approved by CENELEC on 2020-05-21. 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

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 63093-1:2020 E
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SIST EN IEC 63093-1:2020
EN IEC 63093-1:2020 (E)
European foreword

The text of document 51/1309/CDV, future edition 1 of IEC 63093-1, prepared by IEC/TC 51

"Magnetic components, ferrite and magnetic powder materials" was submitted to the IEC-CENELEC

parallel vote and approved by CENELEC as EN IEC 63093-1:2020.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-02-21

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2023-05-21

document have to be withdrawn

This document supersedes EN 62317-1:2007 and EN 60424-1:2016 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.

Endorsement notice

The text of the International Standard IEC 63093-1:2020 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 60401-3 NOTE Harmonized as EN 60401-3
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SIST EN IEC 63093-1:2020
EN IEC 63093-1:2020 (E)
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 60401-1 - Terms and nomenclature for cores made of - -
magnetically soft ferrites - Part 1: Terms used for
physical irregularities and reference of dimensions
IEC 60401-2 - Terms and nomenclature for cores made of EN 60401-2 -
magnetically soft ferrites - Part 2: Reference of
dimensions
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SIST EN IEC 63093-1:2020
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SIST EN IEC 63093-1:2020
IEC 63093-1
Edition 1.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Guidelines on dimensions and the limits of
surface irregularities –
Part 1: General specification
Noyaux ferrites – Lignes directrices relatives aux dimensions
et aux limites des irrégularités de surface –
Partie 1: Spécification générale
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-8079-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 63093-1:2020
– 2 – IEC 63093-1:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 Dimension descriptions .................................................................................................... 7

5 Location and functions of core parts and surfaces ........................................................... 7

5.1 General ................................................................................................................... 7

5.2 Mating surfaces ...................................................................................................... 8

5.3 Centre post ............................................................................................................. 8

5.4 Outer legs ............................................................................................................... 8

5.5 Back, bottom surface and back surfaces ................................................................. 8

5.6 Wire-slot area ......................................................................................................... 8

5.7 Wire-way area ......................................................................................................... 9

5.8 Clamping recess area ............................................................................................. 9

6 Area and length reference for visual inspection ............................................................... 9

7 Examples of surface irregularities .................................................................................. 11

8 Limits of surface irregularities ........................................................................................ 11

8.1 General ................................................................................................................. 11

8.2 Chips and ragged edges ....................................................................................... 11

8.3 Cracks .................................................................................................................. 11

8.4 Flash .................................................................................................................... 11

8.5 Pull-outs ............................................................................................................... 12

8.6 Pores .................................................................................................................... 12

8.7 Crystallites ............................................................................................................ 12

Annex A (informative) IEC 63093 series ............................................................................... 13

Bibliography .......................................................................................................................... 14

Figure 1 – Location of main core parts and surfaces – Example of RM-core type .................... 8

Figure 2 – Examples of surface irregularities ........................................................................ 11

Table 1 – Area and length reference for visual inspection ..................................................... 10

Table A.1 – IEC 63093 series ............................................................................................... 13

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SIST EN IEC 63093-1:2020
IEC 63093-1:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES –
GUIDELINES ON DIMENSIONS AND
THE LIMITS OF SURFACE IRREGULARITIES –
Part 1: General specification
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,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

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. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 63093-1 has been prepared by IEC technical committee 51:

Magnetic components, ferrite and magnetic powder materials.

This first edition cancels and replaces the second edition of IEC 60424-1 published in 2015

and the first edition of IEC 62317-1 published in 2007. This edition constitutes a technical

revision.

This edition includes the following significant technical changes with respect to the previous

editions of IEC 60424-1 and IEC 62317-1:
a) this document integrates IEC 60424-1 and IEC 62317-1.
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