IEC_60115-1-2008.pdf

IEC 60115-1Edition 4.0 2008-07INTERNATIONAL STANDARD Fixed resistors for use in electronic equipment Part 1:Generic specification IEC 60115-1:2008(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,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 either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.?Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.?IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.?Electropedia:www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary online.?Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.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.IEC 60115-1Edition 4.0 2008-07INTERNATIONAL STANDARD Fixed resistors for use in electronic equipment Part 1:Generic specification INTERNATIONAL ELECTROTECHNICAL COMMISSION XCICS 31.040.10 PRICE CODEISBN 2-8318-9846-3 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60115-1 IEC:2008(E)CONTENTS FOREWORD.7 1 General.9 1.1 Scope.9 1.2 Normative references.9 2 Technical data.11 2.1 Units and symbols.11 2.2 Terms and definitions.11 2.3 Preferred values.15 2.3.1 General.15 2.3.2 Preferred values of nominal resistance.15 2.4 Marking.15 2.5 Coding.16 2.6 Packaging.16 2.7 Storage.16 2.8 Transportation.16 3 Quality assessment procedures.16 4 Test and measurement procedures.17 4.1 General.17 4.2 Standard atmospheric conditions.17 4.2.1 Standard atmospheric conditions for testing.17 4.2.2 Recovery conditions.17 4.2.3 Referee conditions.17 4.2.4 Reference conditions.18 4.3 Drying.18 4.4 Visual examination and checking of dimensions.18 4.4.1 Visual examination.18 4.4.2 Dimensions(gauging).18 4.4.3 Dimensions(detail).19 4.5 Resistance.19 4.5.1 Test methods.19 4.5.2 Requirements.20 4.6 Insulation resistance.20 4.6.1 Test methods.20 4.6.2 Measuring conditions.22 4.6.3 Requirements.23 4.7 Voltage proof.23 4.7.1 Test methods.23 4.7.2 Test conditions.23 4.7.3 Requirements.23 4.8 Variation of resistance with temperature.23 4.8.1 Preconditioning.23 4.8.2 Measuring temperatures.23 4.8.3 Measuring procedures.23 4.8.4 Calculation of temperature coefficient of resistance.24 4.8.5 Requirements.24 4.9 Reactance.25 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.60115-1 IEC:2008(E)3 4.9.1 Test procedures.25 4.9.2 Pulse generator specification.25 4.9.3 Oscilloscope specification.25 4.9.4 Measurements.26 4.9.5 Impedance analyzer.26 4.10 Non-linear properties.26 4.11 Voltage coefficient.26 4.11.1 Preconditioning.26 4.11.2 Measuring methods.26 4.11.3 Calculation of voltage coefficient.27 4.11.4 Requirements.27 4.12 Noise.27 4.13 Short time overload.27 4.13.1 Initial measurements.27 4.13.2 Test procedures.27 4.13.3 Final inspection,measurements and requirements.27 4.14 Temperature rise.27 4.14.1 Object.27 4.14.2 Mounting.27 4.14.3 Test procedures.28 4.14.4 Requirements.28 4.15 Robustness of the resistor body.28 4.15.1 Object.28 4.15.2 Test procedure.28 4.15.3 Requirements.28 4.16 Robustness of terminations.