SIST EN 61240:2017

SLOVENSKI STANDARD
SIST EN 61240:2017
01-april-2017
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SIST EN 61240:2012
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Piezoelectric devices - Preparation of outline drawings of surface-mounted devices
(SMD) for frequency control and selection - General rules (IEC 61240:2016)
Piezoelektrische Bauelemente - Anfertigung von Gehäusezeichnungen von
oberflächenmontierbaren Bauelementen (SMD) zur Frequenz-Stabilisierung und -
Selektion - Allgemeine Regeln (IEC 61240:2016)
Dispositifs piézoélectriques - Préparation des dessins d'encombrement des dispositifs à
montage en surface pour la commande et le choix de la fréquence - Règles générales
(IEC 61240:2016)
Ta slovenski standard je istoveten z: EN 61240:2017
ICS:
31.140 3LH]RHOHNWULþQHQDSUDYH Piezoelectric devices
SIST EN 61240:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61240:2017

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SIST EN 61240:2017


EUROPEAN STANDARD EN 61240

NORME EUROPÉENNE

EUROPÄISCHE NORM
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
selection - General rules
(IEC 61240:2016)
Dispositifs piézoélectriques - Préparation des dessins Piezoelektrische Bauelemente - Anfertigung von
d'encombrement des dispositifs à montage en surface pour Gehäusezeichnungen von oberflächenmontierbaren
la commande et le choix de la fréquence - Règles Bauelementen (SMD) zur Frequenz-Stabilisierung und -
générales Selektion - Allgemeine Regeln
(IEC 61240:2016) (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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61240:2017 E

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SIST EN 61240:2017
EN 61240:2017
European foreword
The text of document 49/1172/CDV, future edition 3 of IEC 61240, 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 and approved by
CENELEC as EN 61240:2017.

The following dates are fixed:
• latest date by which the document has to be (dop) 2017-08-28
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-11-28
• latest date by which the national
standards conflicting with the
document have to be withdrawn

This document supersedes EN 61240:2012.

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 61240:2016 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:

ISO 1101 NOTE Harmonized as EN ISO 1101.
ISO 5456-2 NOTE Harmonized as EN ISO 5456-2.
2

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SIST EN 61240:2017
EN 61240:2017
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 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 Title EN/HD Year

IEC 60191-6 -  Mechanical standardization of EN 60191-6 -
semiconductor devices -
Part 6: General rules for the preparation of
outline drawings of surface mounted
semiconductor device packages

3

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SIST EN 61240:2017

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SIST EN 61240:2017



IEC 61240

®


Edition 3.0 2016-10




INTERNATIONAL



STANDARD



















Piezoelectric devices – Preparation of outline drawings of surface-mounted

devices (SMD) for frequency control and selection – General rules



























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 31.140 ISBN 978-2-8322-3692-5



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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SIST EN 61240:2017
– 2 – IEC 61240:2016 © IEC 2016
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative 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 Terminal 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 . 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 – Illustration 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.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

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SIST EN 61240:2017
IEC 61240:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

PIEZOELECTRIC DEVICES – PREPARATION OF OUTLINE
DRAWINGS OF SURFACE-MOUNTED DEVICES (SMD) FOR
FREQUENCY CONTROL AND SELECTION – GENERAL RULES

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 61240 has been prepared by lEC technical committee 49:
Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control,
selection and detection.
This third edition cancels and replaces the second edition published in 2012. It constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• outline drawings have been changed from three views (top, front and bottom) to that based
on ISO layout in the third-angle projection, in which the view from the right has been added
to the top, front and bottom views;
• reference line and geometrical dimensions of the package for enclosures have been
changed for practical use;
• information on miniaturized leadless ceramic enclosures of piezoelectric devices (SMD) for
frequency control and selection has been included in an annex.

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SIST EN 61240:2017
– 4 – IEC 61240:2016 © IEC 2016
The text of this standard is based on the following documents:
CDV Report on voting
49/1172/CDV 49/1188/RVC

Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document 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 indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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SIST EN 61240:2017
IEC 61240:2016 © IEC 2016 – 5 –
INTRODUCTION
The enclosures of quartz crystal resonators and oscillators are unified in this third edition of
IEC 61240.
Regarding the current situation of many quartz crystal device suppliers, many of them use their
own enclosure layouts in their catalogues. For the convenience of consumers, general rules of
enclosure layout and definition of size need to be unified.
The reasons prompting the revision of IEC 61240:2012 are as follow
...