IEC TS 62398:2004

TECHNICAL IEC
SPECIFICATION TS 62398
QC 210018
First edition
2004-10
Ferrite cores –
Technology approval schedule (TAS)

Reference number
IEC/TS 62398:2004(E)
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TECHNICAL IEC
SPECIFICATION TS 62398
QC 210018
First edition
2004-10
Ferrite cores –
Technology approval schedule (TAS)

 IEC 2004  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale R

International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – TS 62398  IEC:2004(E)
CONTENTS
FOREWORD.4
INTRODUCTION.7

1 General .8
1.1 Scope.8
1.2 Normative references .8
1.3 Units, symbols and terminology .9
1.4 Standard and preferred values .9
1.5 Terms and definitions .10
2 Definition of the component technology .10
2.1 Scope.10
2.2 Description of activities and flow charts.10
2.3 Technical abstract .10
3 Component design .11
3.1 Scope.11
3.2 Description of activities and flow charts.11
3.3 Interfaces .11
4 Manufacture .12
4.1 Scope.12
4.2 Description of activities and flow charts.12
4.3 Equipment.12
4.4 Rework.12
4.5 Validation and control of the processes .12
4.6 Subcontractors .12
5 Assembly.12
6 Testing .13
6.1 Scope.13
6.2 Description of activities and flow charts.13
6.3 Equipment.13
6.4 Test procedures .13
6.5 Interfaces .13
7 Verification .14
7.1 Process boundary verification.14
7.2 Product verification.14
8 Process characterisation .14
8.1 Identification of process characteristics .14
8.2 Description of activities .14
9 Packing and shipping .15
9.1 Description of activities and flow charts.15
9.2 Interfaces .15
9.3 Validity of release.15
10 Withdrawal of Technology Approval.15

TS 62398  IEC:2004(E) – 3 –
Annex A (informative) Production process flow charts.16
Annex B (informative) Example of layout of technical abstract .18
Annex C (informative) Example of design flow chart.19

– 4 – TS 62398  IEC:2004(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FERRITE CORES –
TECHNOLOGY APPROVAL SCHEDULE (TAS)

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 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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• The subject is still under technical development or where, for any other reason, there is
the future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62398, which is a technical specification, has been prepared jointly by IEC technical
committee 51: Magnetic components and ferrite materials, and the IEC Quality Assessment
System for Electronic Components (IECQ-CECC).

TS 62398  IEC:2004(E) – 5 –
The text of this Technical specification is based on the following documents:
Enquiry draft Report on voting
51/765/DTS 51/785/RVC
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
The QC number, which is the specification number in the IECQ-CECC, is QC 210018.
This publication has been partially drafted in accordance with the ISO/IEC Directives, Part 2
(2001). It also follows the requirements given in IEC QC 210000:1995, Technology Approval
Schedules – Requirements under the IEC Quality Assessment System for Electronic
Components (IECQ-CECC), available on the IECQ-CECC web site www.iecq-cecc.org.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• transformed into an International standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this Technical specification may be issued at a later date.

– 6 – TS 62398  IEC:2004(E)
International Electrotechnical Commission QC 210018
Quality Assessment System for Electronic Components (IECQ-CECC)

Responsible NAI: Name Specification available as shown in
Address QC 001004 Specifications List
Tel:  (see www.iecq-cecc.org) or from any
Fax: National Authorized Institution (NAI)

TECHNOLOGY APPROVAL SCHEDULE
Issue
QC 210018
2004-10
TS 62398  IEC:2004(E) – 7 –
INTRODUCTION
The IEC Quality Assessment System for Electronic Components (IECQ-CECC) is composed
of those member countries of the International Electrotechnical Commission (IEC) that wish to
take part in a harmonized system for electronic co
...