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

IEC 63093-1:2020 specifies the dimensions and allowable limits of surface irregularities of ferrite cores.
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.
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.
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.

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.

General Information

Status
Published
Publication Date
15-Apr-2020
Current Stage
PPUB - Publication issued
Start Date
28-Apr-2020
Completion Date
16-Apr-2020
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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

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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

– 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

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES –
GUIDELINES ON DIMENSIONS AND
THE LIMITS OF SURFACE IRREGULARITIES –

Part 1: General specification
FOREWORD
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international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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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.

– 4 – IEC 63093-1:2020 © IEC 2020
The text of this International Standard is based on the following documents:
CDV Report on voting
51/1309/CDV 51/1327/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 63093 series, published under the general title Ferrite cores –
Guidelines on dimensions and the limits of surface irregularities, can be found on the IEC
website.
The committee has decided that the contents of this do
...

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