EN IEC 63182-3:2022

SLOVENSKI STANDARD
01-april-2022
Jedra iz magnetnega prahu - Smernice o merah in mejnih vrednostih površinskih
nepravilnosti - 3. del: E-jedra
Magnetic powder cores - Guidelines on dimensions and the limits of surface irregularities
- Part 3: E-cores
Ta slovenski standard je istoveten z: EN IEC 63182-3:2022
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 63182-3

NORME EUROPÉENNE
EUROPÄISCHE NORM February 2022
ICS 29.100.10
English Version
Magnetic powder cores - Guidelines on dimensions and the
limits of surface irregularities - Part 3: E-cores
(IEC 63182-3:2021)
Noyaux en poudre magnétique - Lignes directrices Magnetische Pulverkerne - Leitlinien zu Maßen und
concernant les dimensions et les limites des irrégularités de Grenzen von Oberflächenbeschädigungen - Teil 3: E-Kerne
surface - Partie 3: Noyaux E (IEC 63182-3:2021)
(IEC 63182-3:2021)
This European Standard was approved by CENELEC on 2022-01-20. 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
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same status as the official versions.
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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 63182-3:2022 E

European foreword
The text of document 51/1397/FDIS, future edition 1 of IEC 63182-3, 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 63182-3:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-10-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-01-20
document have to be withdrawn
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 63182-3:2021 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 63182-1 - Magnetic powder cores - Guidelines on EN IEC 63182-1 -
dimensions and the limits of surface
irregularities - Part 1: General specification

IEC 63182-3 ®
Edition 1.0 2021-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Magnetic powder cores – Guidelines on dimensions and the limits of surface

irregularities –
Part 3: E-cores
Noyaux en poudre magnétique – Lignes directrices concernant les dimensions

et les limites des irrégularités de surface –

Partie 3: Noyaux E
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-1061-3

– 2 – IEC 63182-3:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Primary dimensions . 5
4.1 General . 5
4.2 Dimensions of E-cores . 6
4.2.1 Main dimensions . 6
4.2.2 Effective parameter and A values . 7
min
4.3 Dimensional limits for coil formers . 8
5 Limits of surface irregularities . 8
5.1 General . 8
5.2 Examples of surface irregularities . 9
5.3 Chips and ragged edges . 9
5.3.1 General . 9
5.3.2 Chips and ragged edges on the mating surfaces . 9
5.3.3 Chips and ragged edges on the other surfaces . 9
5.4 Cracks . 10
5.5 Flash . 11
5.6 Rust . 11
5.7 Discoloration . 11
Annex A (normative) Derived standards . 12

Figure 1 – Main dimensions of E-cores . 6
Figure 2 – Main dimensions of coil formers for E-cores . 8
Figure 3 – Examples of surface irregularities . 9
Figure 4 – Locations of chips and ragged edges for E-cores . 10
Figure 5 – Locations of cracks for E-cores . 10
Figure 6 – Locations of flashes for E-cores . 11
Figure 7 – Rust location for E-cores . 11

Table 1 – Main dimensions of E-cores . 6
Table 2 – Effective parameter and A values . 7
min
Table 3 – Dimensional limits for coil formers for E-cores . 8

IEC 63182-3:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MAGNETIC POWDER CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –

Part 3: E-cores
FOREWORD
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 63182-3 has been prepared by IEC technical committee 51: Magnetic components, ferrite
and magnetic powder materials. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
51/1397/FDIS 51/1402/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

– 4 – IEC 63182-3:2021 © IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 63182 series, published under the general title Magnetic powder
cores – Guidelines on dimensions and the limits of surface irregularities can be found on the
IEC website.
The committee has decided that the co
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