EN IEC 63093-2:2020

SLOVENSKI STANDARD
01-junij-2021
Nadomešča:
SIST EN 62317-2:2010
Feritna jedra - Smernice o merah in mejnih vrednostih površinskih nepravilnosti -
2. del: Lončasta jedra za uporabo v telekomunikacijah, električnih napajalnikih in
filtrih
Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 2:
Pot-cores for use in telecommunications, power supply, and filter applicationsPart
Noyaux ferrites - Dimensions - Partie 2: Circuits magnétiques en pots utilisés dans des
applications de télécommunications, d'alimentation électrique et de filtre
Ta slovenski standard je istoveten z: EN IEC 63093-2:2020
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 63093-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 29.100.10 Supersedes EN 62317-2:2010 and all of its amendments
and corrigenda (if any)
English Version
Ferrite cores - Guidelines on dimensions and the limits of
surface irregularities - Part 2: Pot-cores for use in
telecommunications, power supply, and filter applications
(IEC 63093-2:2020)
Noyaux ferrites - Lignes directrices relatives aux Ferritkerne - Richtlinien zu Maßen und Grenzen von
dimensions et limites des irrégularités de surface - Partie 2: Oberflächenbeschädigungen - Teil 2: Schalenkerne für die
Circuits magnétiques en pots utilisés dans des applications Verwendung in Telekommunikations-, Stromversorgungs-
de télécommunications, d'alimentation électrique et de filtre und Filteranwendungen
(IEC 63093-2:2020) (IEC 63093-2:2020)
This European Standard was approved by CENELEC on 2020-05-01. 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 63093-2:2020 E

European foreword
The text of document 51/1299/CDV, future edition 1 of IEC 63093-2, 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 63093-2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-02-01
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-05-01
document have to be withdrawn
This document supersedes EN 62317-2:2010 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 63093-2:2020 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 62317-1 NOTE Harmonized as EN 62317-1

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 magnetic EN 60205 -
piece parts
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 60424-1 - Ferrite cores - Guidelines on the limits of surface EN 60424-1 -
irregularities - Part 1: General specification

IEC 63093-2 ®
Edition 1.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Ferrite cores – Guidelines on dimensions and the limits of surface

irregularities –
Part 2: Pot-cores for use in telecommunications, power supply, and filter

applications
Noyaux ferrites – Lignes directrices relatives aux dimensions et limites des

irrégularités de surface –
Partie 2: Circuits magnétiques en pots utilisés dans des applications

de télécommunications, d'alimentation électrique et de filtre

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-8008-9

– 2 – IEC 63093-2:2020 © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Primary dimensions . 7
4.1 Dimensions of pot-cores . 7
4.1.1 General . 7
4.1.2 Principal dimensions . 7
4.1.3 Wire-ways. 9
4.1.4 Effective parameter values . 9
4.2 Main dimensions for coil formers . 10
5 Limits of surface irregularities . 11
5.1 General . 11
5.2 Examples of surface irregularities . 11
5.3 Chips and ragged edges . 12
5.3.1 General . 12
5.3.2 Chips and ragged edges on the mating surfaces . 12
5.3.3 Chips and ragged edges on the other surfaces . 12
5.4 Cracks . 15
5.5 Pull-out, crystallite and pore locations . 16
5.6 Flash . 16
Annex A (informative) Pot-core design . 18
Annex B (informative) Example of gauges to check the dimensions of pot-cores . 19
B.1 General . 19
B.2 Procedure and requirements . 20
Bibliography . 21

Figure 1 – Principal dimensions of pot-cores without back wall slots . 8
Figure 2 – Principal dimensions of pot-cores with back wall slots . 8
Figure 3 – Main dimensions of coil formers for pot-cores . 11
Figure 4 – Examples of surface irregularities . 12
Figure 5 – Chips location for pot-cores . 13
Figure 6 – Cracks location – Top view . 15
Figure 7 – Cracks location – Bottom view . 15
Figure 8 – Pull-out, crystallite and pore locations . 16
Figure 9 – Flash location. 17
Figure B.1 – Dimensions of gauge A . 19
Figure B.2 – Dimensions of gauges B and C . 20

Table 1 – Principal dimensions of pot-cores . 7
Table 2 – Limits for dimensions C and G . 9
Table 3 – Minimum wire-way depth . 9
Table 4 – Effective parameter values for pot-cores with a centre hole . 10
Table 5 – Effective parameter values for pot-cores without a centre hole . 10

IEC 63093-2:2020 © IEC 2020 – 3 –
Table 6 – Main dimensions of coil formers for pot-cores . 11
Table 7 – Area and length references of irregularities for visual inspection . 14
Table 8 – Limits for cracks . 16
Table A.1 – Ratio of diameter to height . 18
Table B.1 – Dimensions of gauge A . 19
Table B.2 – Dimensions of gauges B and C . 20

– 4 – IEC 63093-2:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –

Part 2: Pot-cores for use in telecommunications,
power supply, and filter applications

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 Natio
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