1、 INTERNATIONALSTANDARD IEC60938-1 QC 280000Edition 2.12006-11 Fixed inductors for electromagnetic interference suppression Part 1:Generic specification Reference number IEC 60938-1:1999+A1:2006(E)Edition 2:1999 consolidated with amendment 1:2006 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNA
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9、ctromagnetic interference suppression Part 1:Generic 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 publish
10、er.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 CG For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotech
11、nical 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 60938-1 IEC:1999+A1:2006(E)CONTENTS FOREWORD.4 1 General.6 1.1 Scope.6 1.2 Normative references.6 2 Technical data.8 2
12、.1 Units and symbols.8 2.2 Definitions.8 2.3 Preferred values.11 2.4 Marking.11 3 Quality assessment procedures.11 3.1 General.11 3.2 Primary stage of manufacture.11 3.3 Structurally similar inductors.11 3.4 Qualification approval procedures.11 3.5 Quality conformance inspection.12 3.6 Alternative t
13、est methods.12 3.7 Unchecked parameters.13 4 Test and measurement procedure.13 4.1 General.13 4.2 Standard atmospheric conditions.13 4.3 Drying.14 4.4 Visual examination and check of dimensions.14 4.5 Insulation resistance.16 4.6 Voltage proof.18 4.7 Inductance.21 4.8 Insertion loss.21 4.9 Robustnes
14、s of terminations.21 4.10 Resistance to soldering heat.22 4.11 Solderability(applicable only for terminations intended to be soldered).23 4.12 Rapid change of temperature.23 4.13 Vibration.24 4.14 Bump.24 4.15 Shock.24 4.16 Container sealing.24 4.17 Climatic sequence.25 4.18 Damp heat,steady state.2
15、6 4.19 Temperature rise.26 4.20 Endurance.27 4.21 Passive flammability.27 4.22 Active flammability.28 4.23 Solvent resistance of marking.28 4.24 Component solvent resistance.28 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.60938-1 IE
16、C:1999+A1:2006(E)3 Annex A(normative)Interpretation of sampling plans and procedures as described in IEC 60410 for use within the IEC quality assessment system for electronic components(IECQ).29 Annex B(normative)Rules for the preparation of detail specifications for capacitors and resistors for electronic equipment.30 Annex C(normative)Requirements for earth inductors.31 Figure 1 Voltage proof test circuit.19 Table 1 Reference test:standard atmospheric conditions.14 Table 2 Creepage distances a