EN 60512-16-21:2012
(Main)Connectors for electronic equipment - Tests and measurements - Part 16-21: Mechanical tests on contacts and terminations - Test 16u: Whisker test via the application of external mechanical stresses
Connectors for electronic equipment - Tests and measurements - Part 16-21: Mechanical tests on contacts and terminations - Test 16u: Whisker test via the application of external mechanical stresses
IEC 60512-16-21:2012 The object of this standard is to define a standard test method to assess the possibility of whisker growth by external mechanical stress on the tin and tin-alloy plated parts of a connector in its application (after wire termination, after soldering, after mounting, mated with counterpart). This standard does not cover internal stress type whisker. This part of IEC 60512, when required by the detail specification, is used for testing connectors within the scope of IEC technical committee 48. It may also be used for similar devices when specified in a detail specification. Keywords: Whisker growth, external mechanical stress
Steckverbinder für elektronische Einrichtungen - Mess- und Prüfverfahren - Teil 16-21: Mechanische Prüfungen an Kontakten und Anschlüssen -Prüfung 16u: Whisker-Prüfung unter Anwendung äußerer mechanischer Beanspruchungen
Connecteurs pour équipements électroniques - Essais et mesures - Partie 16-21: Essais mécaniques des contacts et des sorties - Essai 16u: Essai des trichites au moyen de l'application de contraintes mécaniques extérieures
La CEI 60512-16-21:2012 L'objet de la présente norme est de préciser une méthode d'essai normalisée pour évaluer la possibilité de développement de trichites par une contrainte mécanique extérieure sur les parties recouvertes d'un placage d'étain ou d'alliage d'étain d'un connecteur dans son application (après sortie de fil, après soudure, après montage, accouplé avec ses contreparties). La présente norme ne couvre pas la trichite de type par contrainte interne. La présente partie de la CEI 60512 est utilisée pour les essais des connecteurs qui entrent dans le domaine d'application du comité d'études 48 de la CEI. Ces essais peuvent aussi être utilisés sur des composants similaires lorsqu'une spécification particulière le précise. Mots clé: Trichite, contrainte mécanique extérieure
Konektorji za elektronsko opremo - Preskusi in meritve - 16-21. del: Mehanski preskusi kontaktov in priključkov - Preskus 16u: Preskus podaljševanja vlaken zaradi zunanje mehanske obremenitve
Ta del standarda IEC 60512 se uporablja, če tako zahteva podrobna specifikacija, za preskušanje konektorjev na področju uporabe tehničnega odbora 48 IEC. Lahko se uporablja tudi za podobne elemente, če je tako določeno v podrobni specifikaciji. Namen tega standarda je opredeliti standardno preskusno metodo za oceno možnosti podaljševanja vlaken zaradi zunanje mehanske obremenitve delov konektorja, prevlečenih s kositrom in kositrovo zlitino, pri njegovi uporabi (po priključku žice, po spajkanju, po namestitvi, spojitvi z ustreznim delom).
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Steckverbinder für elektronische Einrichtungen
Mess- und Prüfverfahren - Teil 16-21:
Mechanische Prüfungen an Kontakten und Anschlüssen -Prüfung 16u: Whisker-Prüfung unter Anwendung äußerer mechanischer BeanspruchungenConnecteurs pour équipements électroniques - Essais et mesures - Partie 16-21: Essais mécaniques des contacts et des sorties - Essai 16u: Essai des trichites au moyen de l'application de contraintes mécaniques extérieuresConnectors for electronic equipment - Tests and measurements - Part 16-21: Mechanical tests on contacts and terminations - Test 16u: Whisker test via the application of external mechanical stresses31.220.10Plug-and-socket devices. Connectors19.060Mehansko preskušanjeMechanical testingICS:Ta slovenski standard je istoveten z:EN 60512-16-21:2012SIST EN 60512-16-21:2012en01-september-2012SIST EN 60512-16-21:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 60512-16-21 NORME EUROPÉENNE
EUROPÄISCHE NORM June 2012
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60512-16-21:2012 E
ICS 31.220.10
English version
Connectors for electronic equipment -
Tests and measurements -
Part 16-21: Mechanical tests on contacts and terminations -
Test 16u: Whisker test via the application of external mechanical stresses (IEC 60512-16-21:2012)
Connecteurs pour équipements électroniques -
Essais et mesures -
Partie 16-21: Essais mécaniques
des contacts et des sorties -
Essai 16u: Essai des trichites au moyen de l'application de contraintes mécaniques extérieures (CEI 60512-16-21:2012)
Steckverbinder für elektronische Einrichtungen -
Mess- und Prüfverfahren -
Teil 16-21: Mechanische Prüfungen
an Kontakten und Anschlüssen -Prüfung 16u: Whisker-Prüfung unter Anwendung äußerer mechanischer Beanspruchungen(IEC 60512-16-21:2012)
This European Standard was approved by CENELEC on 2012-06-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions 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 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 national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 60512-16-21:2012 was approved by CENELEC as a European Standard without any modification.
- 3 - EN 60512-16-21:2012 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. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year IEC 60050-581 - International Electrotechnical Vocabulary (IEV) -
Part 581: Electromechanical components
for electronic equipment - -
IEC 60068-1 - Environmental testing -
Part 1: General and guidance EN 60068-1 -
IEC 60068-2-58 2004 Environmental testing -
Part 2-58: Tests - Test Td: Test methods for solderability, resistance to dissolution of metallization and to soldering heat of surface mounting devices (SMD) EN 60068-2-58 + corr. December
2004 2004
IEC 60068-2-82 + corr. December 2007 2009 Environmental testing -
Part 2-82: Tests - Test XW1: Whisker test methods for electronic and electric components EN 60068-2-82 2007
IEC 60512-1 - Connectors for electronic equipment - Tests and measurements -
Part 1: General EN 60512-1 -
IEC 61760-1 2006 Surface mounting technology -
Part 1: Standard method for the specification of surface mounting components (SMDs) EN 61760-1 2006
IEC 60512-16-21 Edition 1.0 2012-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Connectors for electronic equipment – Tests and measurements –
Part 16-21: Mechanical tests on contacts and terminations – Test 16u: Whisker test via the application of external mechanical stresses
Connecteurs pour équipements électroniques – Essais et mesures –
Partie 16-21: Essais mécaniques des contacts et des sorties – Essai 16u: Essai des trichites au moyen de l’application de contraintes mécaniques extérieures
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE L ICS 31.220.10 PRICE CODE CODE PRIX ISBN 978-2-88912-057-4
– 2 – 60512-16-21 © IEC:2012 CONTENTS FOREWORD . 3 1 Scope and object . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Test equipment . 6
Optical microscope . 6 4.1 Scanning electron microscope (SEM) . 6 4.25 Preparation of the specimens . 6
General . 6 5.1 Handling of the specimens . 7 5.2 Preconditioning . 7 5.36 Measurement of whisker length . 7 7 Test method . 8
Initial measurement . 8 7.1 Test . 8 7.2 General . 8 7.2.1 Test conditions . 9 7.2.2 Accelerated conditions . 9 7.2.3 Test duration . 9 7.2.4 Final measurement . 9 7.38 Requirements . 9 9 Information to be recorded. 9 10 Details to be specified . 10 Annex A (informative)
Whisker growth due to mechanical stresses induced by assembly processes and intended usage . 11
Figure 1 – Whisker length . 8 Figure A.1 – Filament whisker . 11 Figure A.2 – Whisker on contact . 11 Figure A.3 – Whisker on FFC . 11
Table 1 – Preconditioning heat treatment of specimens for whisker test . 7
60512-16-21 © IEC:2012 – 3 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
CONNECTORS FOR ELECTRONIC EQUIPMENT –
TESTS AND MEASUREMENTS –
Part 16-21: Mechanical tests on contacts and terminations –
Test 16u: Whisker test via the application of external mechanical stresses
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 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. International Standard IEC 60512-16-21 has been prepared by subcommittee 48B: Connectors, of IEC technical committee 48: Electromechanical components and mechanical structures for electronic equipment. The text of this standard is based on the following documents: FDIS Report on voting 48B/2284/FDIS 48B/2294/RVD
Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. A list of all parts of IEC series 60512, under the general title Connectors for electronic equipment – Tests and measurements, can be found on the IEC website. SIST EN 60512-16-21:2012
– 4 – 60512-16-21 © IEC:2012 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the stability date indic
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