1、Electric components Reliability Reference conditions for failure rates and stress models for conversionBS EN 61709:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61709 May 2017 ICS 31.020 Supersedes EN 61709:2
2、011 English Version Electric components - Reliability - Reference conditions for failure rates and stress models for conversion (IEC 61709:2017) Composants lectriques - Fiabilit - Conditions de rfrence pour les taux de dfaillance et modles de contraintes pour la conversion (IEC 61709:2017) Bauelemen
3、te der Elektronik - Zuverlssigkeit - Referenzbedingungen fr Ausfallraten und Beanspruchungsmodelle zur Umrechnung (IEC 61709:2017) This European Standard was approved by CENELEC on 2017-03-24. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condition
4、s 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
5、 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 nation
6、al 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, Portu
7、gal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 1
8、7, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61709:2017 E National forewordThis British Standard is the UK implementation of EN 61709:2017. It is identical to IEC 61709:2017. It supersedes BS EN 61709:2011
9、, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee DS/1, Dependability.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contr
10、act. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 87539 7ICS 31.020Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the author
11、ity of the Standards Policy and Strategy Committee on 31 July 2017.Amendments/corrigenda issued since publicationDate Text affected BRITISH STANDARDBS EN 61709:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61709 May 2017 ICS 31.020 Supersedes EN 61709:2011 English Version Electric compone
12、nts - Reliability - Reference conditions for failure rates and stress models for conversion (IEC 61709:2017) Composants lectriques - Fiabilit - Conditions de rfrence pour les taux de dfaillance et modles de contraintes pour la conversion (IEC 61709:2017) Bauelemente der Elektronik - Zuverlssigkeit -
13、 Referenzbedingungen fr Ausfallraten und Beanspruchungsmodelle zur Umrechnung (IEC 61709:2017) This European Standard was approved by CENELEC on 2017-03-24. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
14、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
15、, 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 Au
16、stria, 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, Slov
17、enia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All
18、rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61709:2017 E BS EN 61709:2017EN 61709:2017 2 European foreword The text of document 56/1714/FDIS, future edition 3 of IEC 61709, prepared by IEC/TC 56 “Dependability“ was submitted to the IEC-CENE
19、LEC parallel vote and approved by CENELEC as EN 61709:2017. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-12-24 latest date by which the national standards conflic
20、ting with the document have to be withdrawn (dow) 2020-03-24 This document supersedes EN 61709:2011. 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 righ
21、ts Endorsement notice The text of the International Standard IEC 61709:2017 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60300-3-2:2004 NOTE Harmonized as EN 6
22、0300-3-2:2005. IEC 60300-3-3 NOTE Harmonized as EN 60300-3-3. IEC 60721 (series) NOTE Harmonized as EN 60721 (series). IEC 60721-3-3 NOTE Harmonized as EN 60721-3-3. IEC 60721-3-4 NOTE Harmonized as EN 60721-3-4. IEC 60721-3-5 NOTE Harmonized as EN 60721-3-5. IEC 60721-3-7 NOTE Harmonized as EN 6072
23、1-3-7. IEC 61014:2003 NOTE Harmonized as EN 61014:2003. IEC 61360 (series) NOTE Harmonized as EN 61360 (series). IEC 61360-1:2009 NOTE Harmonized as EN 61360-1:2010. IEC 61360-4:2005 NOTE Harmonized as EN 61360-4:2005. IEC 61508 (series) NOTE Harmonized as EN 61508 (series). IEC 61649:2008 NOTE Harm
24、onized as EN 61649:2008. IEC 61703:2002 NOTE Harmonized as EN 61703:2002. IEC 61710 NOTE Harmonized as EN 61710. BS EN 61709:2017EN 61709:2017 2 European foreword The text of document 56/1714/FDIS, future edition 3 of IEC 61709, prepared by IEC/TC 56 “Dependability“ was submitted to the IEC-CENELEC
25、parallel vote and approved by CENELEC as EN 61709:2017. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-12-24 latest date by which the national standards conflicting
26、 with the document have to be withdrawn (dow) 2020-03-24 This document supersedes EN 61709:2011. 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 E
27、ndorsement notice The text of the International Standard IEC 61709:2017 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60300-3-2:2004 NOTE Harmonized as EN 60300
28、-3-2:2005. IEC 60300-3-3 NOTE Harmonized as EN 60300-3-3. IEC 60721 (series) NOTE Harmonized as EN 60721 (series). IEC 60721-3-3 NOTE Harmonized as EN 60721-3-3. IEC 60721-3-4 NOTE Harmonized as EN 60721-3-4. IEC 60721-3-5 NOTE Harmonized as EN 60721-3-5. IEC 60721-3-7 NOTE Harmonized as EN 60721-3-
29、7. IEC 61014:2003 NOTE Harmonized as EN 61014:2003. IEC 61360 (series) NOTE Harmonized as EN 61360 (series). IEC 61360-1:2009 NOTE Harmonized as EN 61360-1:2010. IEC 61360-4:2005 NOTE Harmonized as EN 61360-4:2005. IEC 61508 (series) NOTE Harmonized as EN 61508 (series). IEC 61649:2008 NOTE Harmoniz
30、ed as EN 61649:2008. IEC 61703:2002 NOTE Harmonized as EN 61703:2002. IEC 61710 NOTE Harmonized as EN 61710. EN 61709:2017 3 IEC 61810-2:2011 NOTE Harmonized as EN 61810-2:2011. IEC 61810-2-1:2011 NOTE Harmonized as EN 61810-2-1:2011. IEC 62007 (series) NOTE Harmonized as EN 62007 (series). IEC 6274
31、1 NOTE Harmonized as EN 62741. IEC 62308:2006 NOTE Harmonized as EN 62308:2006. BS EN 61709:2017EN 61709:2017 4 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referen
32、ced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modific
33、ations, 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 60050-192 2015 International electrotechnical vocabulary - Part 192: De
34、pendability - - BS EN 61709:2017EN 61709:2017 4 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
35、For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 U
36、p-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 60050-192 2015 International electrotechnical vocabulary - Part 192: Dependability - - 2 IEC 61709:2017 IEC 2017 CONTENTS FOREWORD . 9
37、INTRODUCTION . 11 1 Scope 12 2 Normative references 12 3 Terms, definitions and symbols . 12 3.1 Terms and definitions 12 3.2 Symbols 16 4 Context and conditions 17 4.1 Failure modes and mechanisms 17 4.2 Thermal modelling 18 4.3 Mission profile consideration . 18 4.3.1 General . 18 4.3.2 Operating
38、and non-operating conditions 18 4.3.3 Dormancy 19 4.3.4 Storage . 19 4.4 Environmental conditions 19 4.5 Components choice 21 4.6 Reliability growth during the deployment phase of new equipment 22 4.7 How to use this document . 23 5 Generic reference conditions and stress models 24 5.1 Recommended g
39、eneric reference conditions . 24 5.2 Generic stress models 25 5.2.1 General . 25 5.2.2 Stress factor for voltage dependence, U 26 5.2.3 Stress factor for current dependence, I 26 5.2.4 Stress factor for temperature dependence, T 26 5.2.5 Environmental application factor, E . 28 5.2.6 Dependence on s
40、witching rate, S 28 5.2.7 Dependence on electrical stress, ES 29 5.2.8 Other factors of influence 29 6 Integrated semiconductor circuits 29 6.1 Specific reference conditions 29 6.2 Specific stress models 31 6.2.1 General . 31 6.2.2 Voltage dependence, factor U . 32 6.2.3 Temperature dependence, fact
41、or T . 32 7 Discrete semiconductors . 35 7.1 Specific reference conditions 35 7.2 Specific stress models 36 7.2.1 General . 36 7.2.2 Voltage dependence for transistors, factor U . 37 7.2.3 Temperature dependence, factor T . 37 8 Optoelectronic components . 39 BS EN 61709:2017IEC 61709:2017 IEC 2017
42、3 8.1 Specific reference conditions 39 8.2 Specific stress models 41 8.2.1 General . 41 8.2.2 Voltage dependence, factor U . 41 8.2.3 Current dependence, factor I . 41 8.2.4 Temperature dependence, factor T . 42 9 Capacitors . 44 9.1 Specific reference conditions 44 9.2 Specific stress model 44 9.2.
43、1 General . 44 9.2.2 Voltage dependence, factor U . 44 9.2.3 Temperature dependence, factor T . 46 10 Resistors and resistor networks . 47 10.1 Specific reference conditions 47 10.2 Specific stress models 48 10.2.1 General . 48 10.2.2 Temperature dependence, factor T . 48 11 Inductors, transformers
44、and coils . 49 11.1 Reference conditions 49 11.2 Specific stress model 49 11.2.1 General . 49 11.2.2 Temperature dependence, factorT 49 12 Microwave devices 50 12.1 Specific reference conditions 50 12.2 Specific stress models 51 13 Other passive components 51 13.1 Specific reference conditions 51 13
45、.2 Specific stress models 51 14 Electrical connections 51 14.1 Specific reference conditions 51 14.2 Specific stress models 52 15 Connectors and sockets 52 15.1 Reference conditions 52 15.2 Specific stress models 52 16 Relays . 52 16.1 Reference conditions 52 16.2 Specific stress models 53 16.2.1 Ge
46、neral . 53 16.2.2 Dependence on switching rate, factor S 53 16.2.3 Dependence on electrical stress, factor ES 54 16.2.4 Temperature dependence, factor T . 55 17 Switches and push-buttons 55 17.1 Specific reference conditions 55 17.2 Specific stress model 56 17.2.1 General . 56 BS EN 61709:2017IEC 61
47、709:2017 IEC 2017 3 8.1 Specific reference conditions 39 8.2 Specific stress models 41 8.2.1 General . 41 8.2.2 Voltage dependence, factor U . 41 8.2.3 Current dependence, factor I . 41 8.2.4 Temperature dependence, factor T . 42 9 Capacitors . 44 9.1 Specific reference conditions 44 9.2 Specific st
48、ress model 44 9.2.1 General . 44 9.2.2 Voltage dependence, factor U . 44 9.2.3 Temperature dependence, factor T . 46 10 Resistors and resistor networks . 47 10.1 Specific reference conditions 47 10.2 Specific stress models 48 10.2.1 General . 48 10.2.2 Temperature dependence, factor T . 48 11 Induct
49、ors, transformers and coils . 49 11.1 Reference conditions 49 11.2 Specific stress model 49 11.2.1 General . 49 11.2.2 Temperature dependence, factorT 49 12 Microwave devices 50 12.1 Specific reference conditions 50 12.2 Specific stress models 51 13 Other passive components 51 13.1 Specific reference conditions 51 13.2 Specific stress models 51 14 Electrical connections 51 14.1 Specific reference conditions 51 14.2 Specific stress models 52 15 Connectors and sockets 52 15.1 Reference cond
