Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 13: PQ-cores

This part of IEC 63093 specifies the dimensions that are of importance for mechanical
interchangeability for a preferred range of PQ-cores and low-profile PQI-cores made of ferrite,
and the locations of their terminal pins on a 2,54 mm printed wiring grid in relation to the base
outlines of the cores. It also gives guidance on allowable limits of surface irregularities
applicable to PQ-cores in accordance with the relevant generic specification.
The selection of core sizes for this document is based on the philosophy of including those
sizes which are industrial standards, either by inclusion in a national standard, or by
broad-based use in industry.
This document is a specification useful in the negotiations between ferrite core manufacturers
and customers about surface irregularities.
The general considerations that the design of this range of cores is based upon are given in
Annex A.

Ferritkerne - Richtlinien zu Maßen und Grenzen von Oberflächenbeschädigungen - Teil 13: PQ-Kerne

Noyaux ferrites - Lignes directrices relatives aux dimensions et aux limites des irrégularités de surface - Partie 13: Noyaux PQ

La présente partie de l'IEC 63093 spécifie les dimensions qui jouent un rôle majeur dans l'interchangeabilité mécanique d'une gamme préférentielle de noyaux PQ et de noyaux PQI extra plats constitués de ferrite, et les emplacements de leurs broches de sortie sur une grille aux pas de 2,54 mm d'un circuit imprimé par rapport aux encombrements de base des noyaux. Elle fournit également des recommandations sur les limites des irrégularités de surface admissibles des noyaux PQ, conformément à la spécification générique applicable. Le choix de la taille des noyaux pour le présent document est fondé sur la philosophie consistant à introduire des tailles qui correspondent à des normes industrielles, soit par une prise en compte dans une norme nationale, soit par le biais d'une utilisation à grande échelle dans l'industrie. Le présent document est une spécification utile en cas de négociation entre les fabricants de noyaux ferrites et les clients à propos des irrégularités de surface. Les considérations générales sur lesquelles repose la conception de cette gamme de noyaux figurent dans l'Annexe A.

Feritna jedra - Smernice o merah in mejnih vrednostih površinskih nepravilnosti - 13. del: PQ-jedra

Ta del standarda IEC 63093 določa mere, ki so pomembne za mehansko medsebojno zamenljivost prednostnega razpona jeder PQ in razpona nizko profilnih feritnih jeder PQ, ter položaje njihovih priključkov na 2,54-mm mreži tiskanega vezja glede na osnovno sestavo jeder. Podaja tudi navodila glede omejitev površinskih nepravilnosti, ki veljajo za PQ-jedra v skladu z ustrezno splošno specifikacijo.
Izbira velikosti jeder za ta standard temelji na načelu vključevanja tistih velikosti, ki se na podlagi vključenosti v nacionalni standard ali vsesplošne uporabe v industriji smatrajo za industrijske velikosti.
Ta dokument je specifikacija, uporabna 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 63093-13:2019
01-september-2019
Nadomešča:
SIST EN 60424-8:2016
SIST EN 62317-13:2016

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

13. del: PQ-jedra

Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 13:

PQ-cores
Ta slovenski standard je istoveten z: EN IEC 63093-13:2019
ICS:
29.100.10 Magnetne komponente Magnetic components
SIST EN IEC 63093-13:2019 en

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

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SIST EN IEC 63093-13:2019
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SIST EN IEC 63093-13:2019
EUROPEAN STANDARD EN IEC 63093-13
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2019
ICS 29.100.10 Supersedes EN 60424-8:2015, EN 62317-13:2015
English Version
Ferrite cores - Guidelines on dimensions and the limits of
surface irregularities - Part 13: PQ-cores
(IEC 63093-13:2019)

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

dimensions et aux limites des irrégularités de surface - Oberflächenbeschädigungen - Teil 13: PQ-Kerne

Partie 13: Noyaux PQ (IEC 63093-13:2019)
(IEC 63093-13:2019)

This European Standard was approved by CENELEC on 2019-03-12. 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

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 63093-13:2019 E
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SIST EN IEC 63093-13:2019
EN IEC 63093-13:2019 (E)
European foreword

The text of document 51/1262/FDIS, future edition 1 of IEC 63093-13, 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 63093-13:2019.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2019-12-12

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2022-03-12

document have to be withdrawn
This document supersedes EN 62317-13:2015 and EN 60424-8:2015.

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 63093-13:2019 was approved by CENELEC as a European

Standard without any modification.
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SIST EN IEC 63093-13:2019
EN IEC 63093-13:2019 (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 magnetic EN 60205 -
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 surface EN 60424-1 -

irregularities - Part 1: General specification
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SIST EN IEC 63093-13:2019
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SIST EN IEC 63093-13:2019
IEC 63093-13
Edition 1.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE

Ferrite cores – Guidelines on dimensions and the limits of surface irregularities –

Part 13: PQ-cores
Noyaux ferrites – Lignes directrices relatives aux dimensions et aux limites des
irrégularités de surface –
Partie 13: Noyaux PQ
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.100.10 ISBN 978-2-8322-6506-2

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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 63093-13:2019
– 2 – IEC 63093-13:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 Primary dimensions ......................................................................................................... 7

4.1 General ................................................................................................................... 7

4.2 Dimensions of PQ-cores ......................................................................................... 7

4.2.1 Principal dimensions ........................................................................................ 7

4.2.2 Effective parameter and A values ................................................................ 7

min

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

4.4 Pin locations and base outlines ............................................................................... 7

4.5 Pin diameter ........................................................................................................... 7

5 Mounting ....................................................................................................................... 12

6 Definitions and limits of surface irregularities ................................................................. 13

6.1 General ................................................................................................................. 13

6.2 Examples of surface irregularities ......................................................................... 13

6.3 Chips and ragged edges ....................................................................................... 13

6.3.1 General ......................................................................................................... 13

6.3.2 Chips and ragged edges located on the mating surface ................................. 13

6.3.3 Chips and ragged edges located on the other surfaces .................................. 14

6.4 Cracks .................................................................................................................. 16

6.5 Pull-out ................................................................................................................. 17

6.6 Crystallites ............................................................................................................ 17

6.7 Flash .................................................................................................................... 17

6.8 Pores .................................................................................................................... 18

Annex A (informative) PQ-cores design ............................................................................... 19

Annex B (informative) Examples of allowable areas of chips ................................................ 20

Annex C (normative) Example of a gauge to check the dimensions of PQ-cores

meeting the primary dimensions ............................................................................................ 21

C.1 General ................................................................................................................. 21

C.2 Procedure and requirements ................................................................................. 22

Figure 1 – Dimensions of PQ-cores ......................................................................................... 7

Figure 2 – Dimensions of low-profile PQI-cores ...................................................................... 9

Figure 3 – Main dimensions of coil formers for PQ-cores ...................................................... 11

Figure 4 – Pin locations and base outlines viewed from the upper side of the board ............. 12

Figure 5 – Examples of surface irregularities ........................................................................ 13

Figure 6 – Chips and ragged edges locations........................................................................ 14

Figure 7 – Cracks locations................................................................................................... 16

Figure 8 – Pull-out location ................................................................................................... 17

Figure 9 – Crystallite location................................................................................................ 17

Figure 10 – Flash location ..................................................................................................... 18

Figure 11 – Pore location ...................................................................................................... 18

Figure C.1 – Gauge dimensions ............................................................................................ 21

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SIST EN IEC 63093-13:2019
IEC 63093-13:2019 © IEC 2019 – 3 –

Table 1 – Dimensions of PQ-cores .......................................................................................... 8

Table 2 – Dimensions of low-profile PQI-cores ........................................................................ 9

Table 3 – Effective parameter and A values for PQ-cores ................................................. 10

min

Table 4 – Effective parameter and A values for low-profile PQI-cores ............................... 10

min

Table 5 – Dimensional limits for coil formers for PQ-cores .................................................... 11

Table 6 – Area and length reference of irregularities for visual inspection ............................. 15

Table 7 – Limits for cracks .................................................................................................... 16

Table B.1 – Allowable areas of chips in mm ........................................................................ 20

Table C.1 – Gauge dimensions ............................................................................................. 21

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SIST EN IEC 63093-13:2019
– 4 – IEC 63093-13:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULARITIES –
Part 13: PQ-cores
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,

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 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 is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 63093-13 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 62317-13 published in 2015

and the first edition of IEC 60424-8 published in 2015. This edition constitutes a technical

revision.

This edition includes the following significant technical changes with respect to the previous

editions of
IEC 62317-13 and IEC 60424-8:
a) IEC 63093-13 integrates IEC 62317-13 and IEC 60424-8;
b) IEC 60424-8:2015, Table 1, has been included in Annex B as Table B.1.
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SIST EN IEC 63093-13:2019
IEC 63093-13:2019 © IEC 2019 – 5 –
The text of this International Standard is based on the following documents:
FDIS Report on voting
51/1262/FDIS 51/1270/RVD

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 document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN IEC 63093-13:2019
– 6 – IEC 63093-13:2019 © IEC 2019
FERRITE CORES – GUIDELINES ON DIMENSIONS
AND THE LIMITS OF SURFACE IRREGULAR
...

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