EN 61240-2017 en Piezoelectric devices - Preparation of outline drawings of surface-mounted devices (SMD) for frequency control and selection - General rules.pdf
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1、Piezoelectric devices Preparation of outline drawings of surface-mounteddevices (SMD) for frequency control and selection General rulesBS EN 61240:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of E
2、N 61240:2017. It is identical to IEC 61240:2016. It supersedes BS EN 61240:2012 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/49, Piezoelectric devices for frequency control and selection.A list of organizations represented on this committee can b
3、e obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 90140 9ICS 31.140Compliance wi
4、th a British Standard cannot confer immunity fromlegal obligations.T h i s B r i t i s h S t a n d a r d w a s p u b l i s h e d u n d e r t h e a u t h o r i t y o f t h eS t a n d a r d s P o l i c y a n d S t r a t e g y C o m m i t t e e o n 31 January 2 0 1 7 .Amendments/corrigenda issued since
5、 publicationDate Text affectedBRITISH STANDARDBS EN 61240:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61240 January 2017 ICS 31.140 Supersedes EN 61240:2012 English Version Piezoelectric devices - Preparation of outline drawings of surface-mounted devices (SMD) for frequency control and
6、 selection - General rules (IEC 61240:2016) Dispositifs pizolectriques - Prparation des dessins dencombrement des dispositifs montage en surface pour la commande et le choix de la frquence - Rgles gnrales (IEC 61240:2016) Piezoelektrische Bauelemente - Anfertigung von Gehusezeichnungen von oberflche
7、nmontierbaren Bauelementen (SMD) zur Frequenz-Stabilisierung und -Selektion - Allgemeine Regeln (IEC 61240:2016) This European Standard was approved by CENELEC on 2016-11-28. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
8、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
9、 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 electrotechnica
10、l 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, Portugal, Romania, Serb
11、ia, 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 17, B-1000 Brussels
12、 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61240:2017 E BS EN 61240:2017EN 61240:2017 2 European foreword The text of document 49/1172/CDV, future edition 3 of IEC 61240, prepared by IEC/TC 49“Piezoelectric, dielectric an
13、d electrostatic devices and associated materials for frequency control,selection and detection“ was submitted to the IEC-CENELEC parallel vote and approved byCENELEC as EN 61240:2017. The following dates are fixed: latest date by which the document has to beimplemented at national level bypublicatio
14、n of an identical nationalstandard or by endorsement(dop) 2017-08-28 latest date by which the nationalstandards conflicting with thedocument have to be withdrawn(dow) 2019-11-28 This document supersedes EN 61240:2012. Attention is drawn to the possibility that some of the elements of this document m
15、ay be the subject ofpatent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all suchpatent rights. Endorsement notice The text of the International Standard IEC 61240:2016 was approved by CENELEC as a EuropeanStandard without any modification. In the official version,
16、for Bibliography, the following notes have to be added for the standards indicated: ISO 1101 NOTE Harmonized as EN ISO 1101.ISO 5456-2 NOTE Harmonized as EN ISO 5456-2. BS EN 61240:2017EN 61240:2017 3 Annex ZA (normative) Normative references to international publications with their corresponding Eu
17、ropean 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 amendmen
18、ts) applies. NOTE 1 When an International Publication has been modified by common modifications, 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 Titl
19、e EN/HD Year IEC 60191-6 - Mechanical standardization of semiconductor devices - Part 6: General rules for the preparation of outline drawings of surface mounted semiconductor device packages EN 60191-6 - BS EN 61240:2017 2 IEC 61240:2016 IEC 2016 CONTENTS FOREWORD 3 INTRODUCTION . 5 1 Scope . 6 2 N
20、ormative references . . 6 3 Classification of SMD . . 6 4 Title of the outline drawing . . 6 5 Composition of the outline drawing 6 5.1 Elements of outline drawings 6 5.2 Outline drawing . 7 5.3 Table of detailed dimensions. 7 5.4 Actual size sketch . 7 5.5 Drawing of terminal land areas . 7 5.6 Ter
21、minal lead details . . 7 6 Requirements for terminal leads . . 9 7 Requirements for the terminal land area . 9 8 Connections of terminal leads . 9 9 Descriptive notes 10 Annex A (informative) Miniaturized leadless ceramic enclosures of piezoelectric devices (SMD) for frequency control and selection
22、. 13 A.1 Precise drawing 13 A.2 Requirements for enclosures with 3 terminals . 15 A.3 Naming rule for new type of enclosures . 15 Annex B (informative) Example of terminal connections for surface-mounted piezoelectric devices (SMD) for frequency control and selection 17 Bibliography . 18 Figure 1 Il
23、lustration of terminal projection zone 8 Figure 2 Example of a terminal land area 9 Figure A.1 Upper part of the view from above 13 Figure A.2 Front view (without a board) 14 Figure A.3 Front view (with a board) 14 Table A.1 Scale of drawings. . 13 Table A.2 Guideline for dimension table 14 Table A.
24、3 Guideline for column “Max.” of Table A.2 for A, B . . 15 Table A.4 Examples of correspondence between new and old enclosures . . 16 Table B.1 Examples of terminal connections for various types of piezoelectric devices . 17 BS EN 61240:2017IEC 61240:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL CO
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