BS EN 61837-2-2011 Surface mounted piezoelectric devices for frequency control and selection Standard outlines and terminal lead connections Ceramic enclosures《频率控制和选择用表面安装压电装置 标准概.pdf
《BS EN 61837-2-2011 Surface mounted piezoelectric devices for frequency control and selection Standard outlines and terminal lead connections Ceramic enclosures《频率控制和选择用表面安装压电装置 标准概.pdf》由会员分享,可在线阅读,更多相关《BS EN 61837-2-2011 Surface mounted piezoelectric devices for frequency control and selection Standard outlines and terminal lead connections Ceramic enclosures《频率控制和选择用表面安装压电装置 标准概.pdf(90页珍藏版)》请在麦多课文档分享上搜索。
1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationSurface mounted piezoelectricdevices for frequency control and selection Standard outlines and terminal lead connectionsPart 2: Ceramic enclosuresBS EN 61837-2:2011Licensed Copy:
2、 Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:47, Uncontrolled Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 61837-2:2011. It is identical to IEC 61837-2:2011. It supersedes BS EN 61837-2:2001 which is withdrawn.The UK participation in its preparation wa
3、s entrusted to Technical Committee EPL/49, Piezoelectric devices for frequency control and selection.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 contract. Users are re
4、sponsible for its correct application. BSI 2011ISBN 978 0 580 67137 1 ICS 29.035.30, 31.140 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2011.Amendmen
5、ts issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61837-2:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:47, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 61837-2 NORME EUROPENNE EUROPISCHE NORM July 2011 CENELEC European Committee for Electrotech
6、nical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 618
7、37-2:2011 E ICS 31.140 Supersedes EN 61837-2:2000English version Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures (IEC 61837-2:2011) Dispositifs pizolectriques montage en surface pour la commande
8、et le choix de la frquence - Encombrements normaliss et connexions des sorties - Partie 2: Enveloppes en cramique (CEI 61837-2:2011) Oberflchenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -selektion - Norm-Gehusemae und Anschlsse - Teil 2: Keramikgehuse (IEC 61837-2:2011) Thi
9、s European Standard was approved by CENELEC on 2011-07-01. 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 ref
10、erences concerning such national standards may be obtained on application to the Central Secretariat 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
11、 member into its own language and notified to the Central Secretariat 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, Hun
12、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61837-2:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:47, Uncontrolled Copy
13、, (c) BSIEN 61837-2:2011 - 2 - Foreword The text of document 49/884/CDV, future edition 2 of IEC 61837-2, prepared by IEC TC 49, Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection, was submitted to the IEC-CENELEC parallel vote
14、 and was approved by CENELEC as EN 61837-2 on 2011-07-01. This European Standard supersedes EN 61837-2:2000. In EN 61837-2:2011, types of enclosures are renamed to express their features in their names for better understanding. The relative comparison of new types with old ones is listed in Table. 1
15、. New names of enclosures express configuration type, terminal lead numbers, sizes and arrangement of terminal pads. The details of definition are shown in Clause 3: Configuration of enclosures, and Clause 4: Designation of types. Enclosures in EN 61837-2:2011 are based on EN 61240. In EN 61837-2:20
16、11, 27 enclosures are added to EN 61837-2:2000, as follows: QCC-12/1407A, DCC-2/1206A, QCC-10/9272A, DCC-4/9070A, DCC-2-8045B, DCC-6/7834B, DCC-6/7050A, QCC-10/7050A, DCC-4/6035C, DCC-2/6035C, QCC-8/5045A, DCC-4/5032A, DCC-4/5032C, DCC-2/4818C, DCC-2/4115C, QCC-8/3838A, DCC-6/3838A, DCC-4/3225C, DCC
17、-2/3215C, QCC-8/3030B, DCC-6/3030A, DCC-6/2520A, DCC-4/2520C, DCC-4/2020C, DCC-4/2016C, DCC-4/1612C, DCC-2/1612C. As a result, EN 61837-2:2011 contains a total of 38 enclosure types, which are listed in Table 1 Designation of ceramic enclosures. This standard is to be read in conjunction with EN 612
18、40. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at
19、national level by publication of an identical national standard or by endorsement (dop) 2012-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-07-01 Annex ZA has been added by CENELEC. _ BS EN 61837-2:2011Licensed Copy: Wang Bin, ISO/EXCHANGE C
20、HINA STANDARDS, 22/11/2011 07:47, Uncontrolled Copy, (c) BSI- 3 - EN 61837-2:2011 Endorsement notice The text of the International Standard IEC 61837-2:2011 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to
21、 be added for the standards indicated: IEC 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 NOTE Harmonized as EN 60368-1:2000 (not modified). IEC 60368-2-2:1996 NOTE Harmonized as EN 60368-2-2:1999 (
22、not modified). IEC 60368-3:2001 NOTE Harmonized as EN 60368-3:2001 (not modified). IEC 60679-1:2007 NOTE Harmonized as EN 60679-1:2007 (not modified). IEC 60679-3:2001 NOTE Harmonized as EN 60679-3:2001 (not modified). IEC 60862-1:2003 NOTE Harmonized as EN 60862-1:2003 (not modified). IEC 60862-2:2
23、002 NOTE Harmonized as EN 60862-2:2002 (not modified). IEC 60862-3:2003 NOTE Harmonized as EN 60862-3:2003 (not modified). IEC 61019-1:2004 NOTE Harmonized as EN 61019-1:2005 (not modified). IEC 61016-2:2005 NOTE Harmonized as EN 61016-2:2005 (not modified). ISO 1101:2004 NOTE Harmonized as EN ISO 1
24、101:2005 (not modified). _ BS EN 61837-2:2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 22/11/2011 07:47, Uncontrolled Copy, (c) BSIEN 61837-2:2011 - 4 - Annex ZA (normative) Normative references to international publications with their corresponding European publications The following r
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