EN IEC 63093-10:2022

SLOVENSKI STANDARD
01-maj-2023
Nadomešča:
SIST EN 61247:2002
Feritna jedra - Smernice o merah in mejnih vrednostih površinskih nepravilnosti -
10. del: PM-jedra in pripadajoči deli
Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 10:
PM-cores and associated parts
Ferritkerne – Richtlinien zu Maßen und Grenzen von Oberfächenbeschädigungen – Teil
10: PM-Kerne und zugehörige Teile
Noyaux ferrites - Lignes directrices relatives aux dimensions et aux limites des
irrégularités de surface - Partie 10: Noyaux PM et parties associées
Ta slovenski standard je istoveten z: EN IEC 63093-10:2022
ICS:
29.100.10 Magnetne komponente Magnetic components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 63093-10

NORME EUROPÉENNE
EUROPÄISCHE NORM May 2022
ICS 29.100.10 Supersedes EN 61247:1997
English Version
Ferrite cores - Guidelines on dimensions and the limits of
surface irregularities - Part 10: PM-cores and associated parts
(IEC 63093-10:2022)
Noyaux ferrites - Lignes directrices relatives aux Ferritkerne - Richtlinien zu Maßen und Grenzen von
dimensions et aux limites des irrégularités de surface - Oberfächenbeschädigungen - Teil 10: PM-Kerne und
Partie 10: Noyaux PM et parties associées zugehörige Teile
(IEC 63093-10:2022) (IEC 63093-10:2022)
This European Standard was approved by CENELEC on 2022-05-26. 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63093-10:2022 E

European foreword
The text of document 51/1388/CDV, future edition 1 of IEC 63093-10, 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 63093-10:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-02-26
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-05-26
document have to be withdrawn
This document supersedes EN 61247:1997 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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 63093-10:2022 was approved by CENELEC as a European
Standard without any modification.
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 60205 - Calculation of the effective parameters of EN 60205 -
magnetic piece parts
IEC 60401-1 - Terms and nomenclature for cores made of EN IEC 60401-1 -
magnetically soft ferrites - Part 1: Terms
used for physical irregularities and
reference of dimensions
IEC 63093-1 2020 Ferrite cores - Guidelines on dimensions EN IEC 63093-1 2020
and the limits of surface irregularities - Part
1: General specification
IEC 63093-10 ®
Edition 1.0 2022-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Guidelines on dimensions and the limits of surface
irregularities –
Part 10: PM-cores and associated parts
Noyaux ferrites – Lignes directrices relatives aux dimensions et aux limites des
irrégularités de surface –
Partie 10: Noyaux PM et parties associées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-5523-0
– 2 – IEC 63093-10:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Primary dimensions . 6
4.1 General . 6
4.2 Dimensions of PM-cores . 7
4.2.1 Principal dimensions . 7
4.2.2 Effective parameter and A values . 8
min
4.3 Main dimensions of coil formers . 8
4.4 Pin locations and base outlines . 9
4.5 Pin diameter . 9
5 Mounting hardware . 9
6 Limits of surface irregularities . 10
6.1 General . 10
6.2 Examples of surface irregularities . 10
6.3 Chips and ragged edges . 11
6.3.1 General . 11
6.3.2 Chips and ragged edges located on the mating surface . 11
6.3.3 Chips and ragged edges located on other surfaces . 12
6.4 Cracks . 12
6.5 Pull-out . 13
6.6 Crystallites . 14
6.7 Flash . 14
6.8 Pores . 15
Annex A (normative) Derived standards . 16
Annex B (normative) Example of a gauge to check the coil former space dimensions of
PM‑cores meeting the IEC primary standard . 17
Annex C (informative) Recommended main dimensions for mounting hardware . 18
Annex D (informative) Limits of allowable chipping areas . 20

Figure 1 – Main dimensions of PM-cores . 7
Figure 2 – Main dimensions of coil formers . 8
Figure 3 – Pin locations and base outlines viewed from the underside of the board . 10
Figure 4 – Examples of surface irregularities . 11
Figure 5 – Chips on mating surfaces . 12
Figure 6 – Locations of cracks . 13
Figure 7 – Location of pull-out . 14
Figure 8 – Location of a crystallite . 14
Figure 9 – Location of a flash . 15
Figure 10 – Location of pore . 15
Figure B.1 – Example of a gauge . 17
Figure C.1 – Main dimensions of mounting hardware . 18

IEC 63093-10:2022 © IEC 2022 – 3 –
Table 1 – Main dimensions of PM-cores . 7
Table 2 – Effective parameter and A values . 8
min
Table 3 – Main dimensions of coil formers . 9
Table 4 – Limits for cracks . 13
Table B.1 – Example of a gauge . 17
Table C.1 – Main dimensions of U-bolt . 18
Table C.2 – Main dimensions of base plate . 19
Table D.1 – Limits of allowable chipping areas. 20

– 4 – IEC 63093-10:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –

Part 10: PM-cores and associated parts

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
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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
...