IEC_60938-2-2006.pdf

INTERNATIONALSTANDARD IEC60938-2 QC 280100Edition 2.12006-11 Fixed inductors for electromagnetic interference suppression Part 2:Sectional specification Reference number IEC 60938-2:1999+A1:2006(E)Edition 2:1999 consolidated with amendment 1:2006 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(http:/www.iec.ch/searchpub/cur_fut.htm)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(http:/www.iec.ch/online_news/justpub/jp_entry.htm)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC60938-2 QC 280100Edition 2.12006-11 Fixed inductors for electromagnetic interference suppression Part 2:Sectional specification IEC 2006 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 Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch CGFor price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission Edition 2:1999 consolidated with amendment 1:2006 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60938-2 IEC:1999+A1:2006(E)CONTENTS FOREWORD.4 1 General.6 1.1 Scope.6 1.2 Object.6 1.3 Normative references.6 1.4 Information to be given in a detail specification.7 1.5 Definitions.8 1.6 Marking.8 2 Preferred ratings and characteristics.8 2.1 Climatic categories.8 2.2 Values of ratings.9 3 Quality assessment procedures.9 3.1 Primary stage of manufacture.9 3.2 Structurally similar inductors.9 3.3 Certified records of released lots.10 3.4 Qualification approval.10 3.5 Quality conformance inspection.14 4 Test and measurement procedures.14 4.1 Visual examination and check of dimensions.14 4.2 Voltage proof.15 4.3 Insulation resistance.15 4.4 Inductance.16 4.5 DC line resistance.16 4.6 Robustness of terminations.16 4.7 Resistance to soldering heat.16 4.8 Solderability.16 4.9 Rapid change of temperature.16 4.10 Vibration.17 4.11 Bump.17 4.12 Shock.18 4.13 Container sealing.18 4.14 Climatic sequence.18 4.15 Damp heat,steady state.19 4.16 Temperature rise(applies only to inductors with a mass 5 g).19 4.17 Impulse voltage(applies to inductors with more than one winding).20 4.18 Endurance.21 4.19 Passive flammability(if applicable).22 4.20 Component solvent resistance(if applicable).22 4.21 Solvent resistance of marking(if applicable).22 Annex A(normative)Test schedule for safety tests only approval.23 Annex B(normative)Test schedule for safety tests and performance tests for qualification approval,assessment level D.26 Annex C(normative)Example of a suitable circuit for the endurance test voltage.31 Annex D(normative)Declaration of design(confidential to the manufacturer and the certification body).32 Annex E(normative)Test methods for thyristor electromagnetic interference suppression inductors.33 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY