1、BSI Standards PublicationSurface mounted piezoelectricdevices for frequency control and selection Standard outlines and terminal lead connectionsPart 3: Metal enclosuresBS EN 61837-3:2015National forewordThis British Standard is the UK implementation of EN 61837-3:2015. It isidentical to IEC 61837-3
2、:2015. It supersedes BS EN 61837-3:2001 which iswithdrawn.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 be obtained onrequest to its secretary.Thi
3、s publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 82066 3ICS 31.140Compliance with a British Standard cannot confer immun
4、ity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 61837-3:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 6
5、1837-3 December 2015 ICS 31.140 Supersedes EN 61837-3:2000 English Version Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 3: Metal enclosures (IEC 61837-3:2015) Dispositifs pizolectriques montage en surface pour la c
6、ommande et le choix de la frquence - Encombrements normaliss et connexions des sorties - Partie 3: Enveloppes mtalliques (IEC 61837-3:2015) Oberflchenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -selektion - Norm-Gehusemae und Anschlsse - Teil 3: Metallgehuse (IEC 61837-3:201
7、5) This European Standard was approved by CENELEC on 2015-05-20. 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 bibliographic
8、al 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 responsibil
9、ity 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, Fo
10、rmer Yugoslav Republic of Macedonia, 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. European Committee for Electrotechn
11、ical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No.
12、 EN 61837-3:2015 E BS EN 61837-3:2015EN 61837-3:2015 (E) 2 European foreword The text of document 49/1118/FDIS, future edition 2 of IEC 61837-3, prepared by IEC/TC 49 “Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection“ was sub
13、mitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61837-3:2015. 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) 2016-06-04 latest date by which the na
14、tional standards conflicting with the document have to be withdrawn (dow) 2018-05-20 This document supersedes EN 61837-3:2000. 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 id
15、entifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61837-3:2015 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: IE
16、C 60122-3:2010 NOTE Harmonized as EN 60122-3:2010 (not modified). IEC 60191-6:2009 NOTE Harmonized as EN 60191-6:2009 (not modified). IEC 60368-1:2000 A1:2004 NOTE Harmonized as EN 60368-1:2000 (not modified). A1:2004 IEC 60368-2-2:1996 NOTE Harmonized as EN 60368-2-2:1999 (not modified). IEC 60368-
17、3:2010 NOTE Harmonized as EN 60368-3:2010 (not modified). IEC 60679-1:2007 NOTE Harmonized as EN 60679-1:2007 (not modified). IEC 60679-3:2012 NOTE Harmonized as EN 60679-3:2013 (not modified). IEC 60862-1:2003 NOTE Harmonized as EN 60862-1:2003 (not modified). IEC 60862-2:2012 NOTE Harmonized as EN
18、 60862-2:2012 (not modified). IEC 60862-3:2003 NOTE Harmonized as EN 60862-3:2003 (not modified). ISO 1101:2012 NOTE Harmonized as EN ISO 1101:2013 (not modified). BS EN 61837-3:2015EN 61837-3:2015 (E) 3 Annex ZA (normative) Normative references to international publications with their corresponding
19、 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 amend
20、ments) 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
21、Title EN/HD Year IEC 61240 2012 Piezoelectric devices - Preparation of outline drawings of surface-mounted devices (SMD) for frequency control and selection - General rules EN 61240 2012 BS EN 61837-3:2015 2 IEC 61837-3:2015 IEC 2015 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references 5 3 Configu
22、ration of enclosures . 5 4 Designation of types 5 5 Metal enclosure dimensions. 6 6 Lead connections 6 7 Designation of metal enclosures 6 Bibliography 20 Table 1 Revised configurations 6 Table 2 Designation of metal enclosures 7 BS EN 61837-3:2015IEC 61837-3:2015 IEC 2015 3 INTERNATIONAL ELECTROTEC
23、HNICAL COMMISSION _ SURFACE MOUNTED PIEZOELECTRIC DEVICES FOR FREQUENCY CONTROL AND SELECTION STANDARD OUTLINES AND TERMINAL LEAD CONNECTIONS Part 3: Metal enclosures FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all nation
24、al 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
25、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. Int
26、ernational, 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 f
27、ormal 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
28、 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
29、. 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 s
30、hall 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 cer
31、tification 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 i
32、njury, 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 reference
33、s 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 iden
34、tifying any or all such patent rights. International Standard IEC 61837-3 has been prepared by IEC technical committee 49: Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection. This second edition cancels and replaces the first e
35、dition published in 2000. It constitutes a technical revision. This International Standard is to be read in conjunction with IEC 61240:2012. This edition includes the following significant technical changes with respect to the previous edition: The outline drawing is defined as one set of drawings c
36、onsisting of four views, which are the view from above, the front view, the view from the right, and the view from below; the view from the right was drawn optionally in the previous edition. BS EN 61837-3:2015 4 IEC 61837-3:2015 IEC 2015 The height of package (G1) is eliminated, instead total heigh
37、t is expressed by the symbol letter G or with a subscript number. The dimensions of terminal lead spacing are shown by the centre position of the terminal leads and its basic value e is 2.54 n mm (n is an integer) and 1,27 n mm for package dimensions smaller than 6 mm (See IEC 61240:2012, 5.5). If t
38、he terminal lead spacing is not a multiple of the basic value, a subscript number such as e1, e2is attached, e.g. e1, e2, etc. If there are plural spacing values, the subscript number is followed by a hyphen and numbers such as e1-1, e1-2, etc. In terminal land areas, the lengths of each terminal pa
39、d are now expressed with maximum values for consumers convenience. They were expressed as minimum values in the previous edition of IEC 61837-3. If there are plural identical enclosures with different height, each enclosure was expressed by a dash (/) and a two-digit number after the basic type name
40、. The identity references are given in the table of the sheet. The configurations of the enclosures were revised as shown in Table 1. The text of this standard is based on the following documents: FDIS Report on voting 49/1118/FDIS 49/1140/RVD Full information on the voting for the approval of this
41、standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 61837 series, published under the general title Surface mounted piezoelectric devices for frequency control
42、and selection Standard outlines and terminal lead connections, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specifi
43、c publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 61837-3:2015IEC 61837-3:2015 IEC 2015 5 SURFACE MOUNTED PIEZOELECTRIC DEVICES FOR FREQUENCY CONTROL AND SELECTION STANDARD OUTLINES AND TERMINAL LEAD CONNECTIONS Part 3: Meta
44、l enclosures 1 Scope This part of IEC 61837 deals with standard outlines and terminal lead connections as they apply to SMDs for frequency control and selection in metal enclosures and is based on IEC 61240 which standardized layout rules of outline drawings of the surface-mounted devices. 2 Normati
45、ve references 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) ap
46、plies. IEC 61240:2012, Piezoelectric devices Preparation of outline drawings of surface mounted devices (SMD) for frequency control and selection General rules 3 Configuration of enclosures The enclosures of the surface-mounted devices are made of metal with the formed lead terminals based on the de
47、scriptive designation system for semiconductors devices package. All SMD enclosures described in this part of IEC 61837 are special surface mount types. Therefore, the following designator is used. SMS (Surface-Mounted, Special) 4 Designation of types The type designator consists of four parts as fo
48、llows: A: Configuration symbol of enclosures: SMS (Surface-Mounted, Special). B: Structure of terminal leads L: folded leads type; J: folded leads type. If there is a leadless type, it will have no mark. See Clause 3 of IEC 61240:2012, Classification of SMD. C: Number of terminal leads A B C D BS EN
49、 61837-3:2015 6 IEC 61837-3:2015 IEC 2015 D: 2-digit serial number 5 Metal enclosure dimensions The dimensions given in this part of IEC 61837 apply to all completed SMD for frequency control and selection. Only those dimensions are given which meet the requirements of IEC 61240. If there are plural identical enclosures with different height (G), or different length (F), etc. The symbol letter shall be expressed with a subscript number such as G1,
