Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 5: EP-cores and associated parts for use in inductors and transformers

This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of EP-cores made of ferrite, the essential dimensions
of coil formers to be used with them and the locations of their terminal pins on a 2,50 mm
printed wiring grid in relation to the base outlines of the cores and the effective parameter
values to be used in calculations involving them. It also gives guidelines on allowable limits of
surface irregularities applicable to EP-cores.
The specifications contained in this document are useful in negotiations between ferrite core
manufacturers and users about surface irregularities.
The general considerations upon which the design of this range of cores is based are as given
in Annex A.

Ferritkerne - Richtlinien zu Maßen und Grenzen von Oberflächenbeschädigungen - Teil 5: EP-Kerne und zugehörige Teile zum Einsatz in Drosseln und Transformatoren

Noyaux de ferrite - Lignes directrices relatives aux dimensions et limites des irrégularités de surface - Partie 5: Noyaux EP et éléments associés utilisés dans les inductances et les transformateurs

Feritna jedra - Smernice o merah in mejnih vrednostih površinskih nepravilnosti - 5. del: EP-jedra in pripadajoči deli za uporabo v tuljavah in transformatorjih

Ta del standarda IEC 63093 določa mere, ki so pomembne za mehansko medsebojno zamenljivost prednostnega razpona feritnih EP-jeder, bistvene mere tuljave, ki se uporablja s temi jedri, ter položaje njihovih priključkov na 2,50-mm mreži tiskanega vezja glede na osnovno sestavo jeder in vrednosti efektivnih parametrov, ki se uporabljajo pri izračunih, povezanih s položajem priključkov. Podaja tudi smernice glede omejitev površinskih nepravilnosti, ki veljajo za EP-jedra.
Specifikacije v tem dokumentu so uporabne za sklepanje dogovorov o površinskih nepravilnostih med proizvajalci in uporabniki feritnih jeder.
Splošni premisleki, na podlagi katerih temelji zasnova tega razpona jeder, so podani v dodatku A.

General Information

Status
Published
Publication Date
11-Aug-2019
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Jul-2019
Due Date
16-Sep-2019
Completion Date
12-Aug-2019

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SLOVENSKI STANDARD
SIST EN IEC 63093-5:2019
01-september-2019
Nadomešča:
SIST EN 62317-5:2016

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

5. del: EP-jedra in pripadajoči deli za uporabo v tuljavah in transformatorjih

Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 5:

EP-cores and associated parts for use in inductors and transformers
Ta slovenski standard je istoveten z: EN IEC 63093-5:2018
ICS:
29.100.10 Magnetne komponente Magnetic components
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN IEC 63093-5:2019 en

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

---------------------- Page: 1 ----------------------
SIST EN IEC 63093-5:2019
---------------------- Page: 2 ----------------------
SIST EN IEC 63093-5:2019
EUROPEAN STANDARD EN IEC 63093-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2018
ICS 29.100.10 Supersedes EN 62317-5:2015
English Version
Ferrite cores - Guidelines on dimensions and the limits of
surface irregularities - Part 5: EP-cores and associated parts for
use in inductors and transformers
(IEC 63093-5:2018)

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

dimensions et limites des irrégularités de surface - Partie 5: Oberflächenbeschädigungen - Teil 5: EP-Kerne und

Noyaux EP et éléments associés utilisés dans les zugehörige Teile zum Einsatz in Drosseln und

inductances et les transformateurs Transformatoren
(IEC 63093-5:2018) (IEC 63093-5:2018)

This European Standard was approved by CENELEC on 2018-08-13. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 63093-5:2018 E
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SIST EN IEC 63093-5:2019
EN IEC 63093-5:2018 (E)
European foreword

The text of document 51/1212/CDV, future edition 1 of IEC 63093-5, 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 63093-5:2018.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2019-05-13

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2021-08-13

document have to be withdrawn
This document supersedes EN 62317-5:2015.

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 63093-5:2018 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 62317-5:2015 NOTE Harmonized as EN 62317-5:2015 (not modified).
---------------------- Page: 4 ----------------------
SIST EN IEC 63093-5:2019
EN IEC 63093-5:2018 (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 60205 - Calculation of the effective parameters of EN 60205 -
magnetic piece parts
IEC 60401-1 - Terms and nomenclature for cores made of EN 60401-1 -
magnetically soft ferrites -- Part 1: Terms
used for physical irregularities
IEC 60424-1 - Ferrite cores - Guidelines on the limits of EN 60424-1 -
surface irregularities - Part 1: General
specification
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SIST EN IEC 63093-5:2019
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SIST EN IEC 63093-5:2019
IEC 63093-5
Edition 1.0 2018-06
INTERNATIONAL
STANDARD
Ferrite cores – Guidelines on dimensions and the limits of surface
irregularities –
Part 5: EP-cores and associated parts for use in inductors and transformers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.100.10 ISBN 978-2-8322-5833-0

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

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
SIST EN IEC 63093-5:2019
– 2 – IEC 63093-5:2018 © IEC 2018
CONTENTS

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

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 Primary dimensions ......................................................................................................... 6

4.1 General ................................................................................................................... 6

4.2 Dimensions of EP-cores .......................................................................................... 6

4.2.1 Principal dimensions ........................................................................................ 6

4.2.2 Effective parameter and A values ............................................................... 6

min

4.3 Dimensional limits for coil formers........................................................................... 7

4.4 Pin locations and base outlines ............................................................................... 8

5 Limits of surface irregularities .......................................................................................... 9

5.1 General ................................................................................................................... 9

5.2 Examples of surface irregularities ........................................................................... 9

5.3 Chips and ragged edges ....................................................................................... 10

5.3.1 General ......................................................................................................... 10

5.3.2 Chips and ragged edges on the mating surfaces ............................................ 10

5.3.3 Chips and ragged edges on the other surfaces .............................................. 10

5.4 Cracks .................................................................................................................. 13

5.5 Flash .................................................................................................................... 13

5.6 Pull-outs ............................................................................................................... 13

5.7 Crystallites ............................................................................................................ 14

5.8 Pores .................................................................................................................... 15

Annex A (normative) EP-core design ................................................................................... 16

A.1 General ................................................................................................................. 16

A.2 Pin location and base outlines .............................................................................. 16

Bibliography .......................................................................................................................... 17

Figure 1 – Principal dimensions of EP-cores ........................................................................... 6

Figure 2 – Main dimensions of coil formers for EP-cores ......................................................... 7

Figure 3 – Pin locations (SMD type) viewed from the upper side of the board ......................... 8

Figure 4 – Pin locations (PTH type) viewed from the underside of the board ........................... 9

Figure 5 – Examples of surface irregularities ........................................................................ 10

Figure 6 – Chip location for EP-cores.................................................................................... 11

Figure 7 – Crack and pull-out locations for EP-cores ............................................................. 13

Figure 8 – Crystallite location for EP-cores ........................................................................... 14

Figure 9 – Pore location for EP-cores ................................................................................... 15

Table 1 – Principal dimensions of EP-cores ............................................................................ 6

Table 2 – Effective parameter and A values ....................................................................... 7

min

Table 3 – Dimensional limits for coil formers for EP-cores ....................................................... 7

Table 4 – Area and length reference for visual inspection ..................................................... 12

Table 5 – Limits for cracks .................................................................................................... 14

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SIST EN IEC 63093-5:2019
IEC 63093-5:2018 © IEC 2018 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –
Part 5: EP-cores and associated parts for use
in inductors and transformers
FOREWORD

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