EN 61837-4:2015

Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 4: Hybrid enclosure outlines

IEC 61837-4:2015 specifies the outline drawings and terminal lead connections for surface piezoelectric devices with hybrid enclosure outlines and is based on IEC 61240:2012 which standardized layout rules of outline drawings of surface-mounted device. This edition includes the following significant technical changes with respect to the previous edition: - Outline drawing is defined as one set of drawings consisting of four views, which are the view from above, the front view, the view from the right, and the view from below, instead of one set consisting of three views as provided in the previous edition. - The configurations of the enclosures were revised as shown in Table 1.

Oberflächenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -selektion - Norm-Gehäusemaße und Anschlüsse - Teil 4: Hybridgehäuse

Dispositifs piézoélectriques à montage en surface pour la commande et le choix de la fréquence - Encombrements normalisés et connexions des sorties - Partie 4: Encombrements des enveloppes hybrides

L'IEC 61837-4:2015 spécifie les dessins d'encombrement et les connexions des sorties pour les dispositifs piézoélectriques à montage en surface avec les encombrements d'enveloppes hybrides, et est fondée sur l'IEC 61240:2012, qui a normalisé les règles de tracé des dessins d'encombrement des dispositifs à montage en surface. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - Le dessin d'encombrement est défini comme un ensemble de dessins composé de quatre vues, à savoir la vue de dessus, la vue de face, la vue de droite et la vue de dessous, à la place de l'ensemble des trois vues prévu dans la version précédente. - Les configurations des enveloppes ont été révisées comme indiqué au Tableau 1.

Površinsko nameščeni piezoelektrični elementi za stabilizacijo in izbiranje frekvence - Standardne mere in priključni izvodi - 4. del: Mere hibridnega okrova

Ta del standarda IEC 61837 določa tehnične risbe in priključne izvode za površinske piezoelektrične elemente s hibridnimi okrovi in je osnovan na standardu IEC 61240:2012, ki je standardiziral osnovna pravila tehničnih risb površinsko montiranih naprav.

General Information

• Status: Published
• Publication Date: 14-May-2015
• Withdrawal Date: 30-Apr-2018
• ICS: 31.140 - Piezoelectric devices
• Technical Committee: CLC/SR 49 - Piezoelectric and dielectric devices for frequency control and selection
• Drafting Committee: IEC/TC 49 - IEC_TC_49
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 15-May-2015
• Completion Date: 15-May-2015
• Ref Project: SIST EN 61837-4:2015 - Surface mounted piezoelectric devices for frequency control and selection - Standard outline and terminal lead connections - Part 4: Hybrid enclosure outline

Relations

• Replaces: EN 61837-4:2004 - Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 4: Hybrid enclosure outlines
• Effective Date: 28-Jan-2023

Overview

EN 61837-4:2015 (IEC 61837-4:2015) defines standard outline drawings and terminal lead connections for surface mounted piezoelectric devices with hybrid enclosure outlines. It specifies how mechanical outlines and electrical terminals are represented so manufacturers, PCB designers and component users can achieve interchangeability and correct PCB footprints for SMD piezoelectric frequency-control components (crystals, oscillators, resonators).

This edition is based on IEC 61240:2012 (general rules for SMD outline drawings) and updates the earlier 2004 edition by:

• Defining an outline drawing as four views (top, front, right, below) instead of three.
• Revising enclosure configuration tables for hybrid types.

Key topics and technical requirements

• Outline drawings: One set of drawings comprises four views (above, front, right, below) following IEC 61240 layout rules.
• Terminal lead connections: Standardized mappings for lead functions (ground, Vcc, output, NC, Vc, etc.) for hybrid enclosure types (CO25–CO30) are provided in tables.
• Enclosure configuration and designation: Hybrid enclosure types are designated (e.g., CO25/01…CO30/09) with version numbering for height variants.
• Dimensional rules: Only dimensions required by IEC 61240 are given; sheets include tables of detailed dimensions and terminal land areas. Drawings should use recommended scales (enclosures > 20 mm nominal length recommended to use 2:1).
• Revision control: The standard supersedes EN 61837-4:2004 and documents specific changes to dimensions and maximum heights for several CO types.
• Normative references: IEC 61240:2012 is normative and indispensable for correct application.

Practical applications and users

This standard is essential for:

• Component manufacturers (crystals, oscillators, resonators) to publish compliant mechanical outlines and lead assignments.
• PCB designers and layout engineers who create footprints and land patterns for SMD piezoelectric devices.
• Procurement and quality engineers ensuring mechanical compatibility between suppliers and assemblies.
• Test and reliability teams verifying mechanical placement and terminal accessibility.
• Standards and compliance teams aligning product data with EN/IEC requirements for international interoperability.

Benefits include consistent PCB footprint design, reduced assembly errors, simplified supplier interchangeability, and clearer mechanical specifications for SMD frequency-control components.

Related standards

• IEC 61240:2012 – Preparation of outline drawings of surface-mounted devices (normative reference).
• Other parts of the IEC/EN 61837 series (for full family of SMD piezoelectric outline and terminal standards).

Keywords: EN 61837-4:2015, IEC 61837-4:2015, surface mounted piezoelectric devices, hybrid enclosure outlines, terminal lead connections, SMD piezoelectric, PCB footprint, crystal oscillator outline.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2015
1DGRPHãþD
SIST EN 61837-4:2005
3RYUãLQVNRQDPHãþHQLSLH]RHOHNWULþQLHOHPHQWL]DVWDELOL]DFLMRLQL]ELUDQMH
IUHNYHQFH6WDQGDUGQHPHUHLQSULNOMXþQLL]YRGLGHO0HUHKLEULGQHJDRNURYD
Surface mounted piezoelectric devices for frequency control and selection - Standard
outline and terminal lead connections - Part 4: Hybrid enclosure outline
Oberflächenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -
selektion - Norm-Gehäusemaße und Anschlüsse - Teil 4: Hybridgehäuse
Dispositifs piézoélectriques à montage en surface pour la commande et le choix de la
fréquence - Encombrements normalisés et connexions des sorties - Partie 4:
Encombrements des enveloppes hybrides
Ta slovenski standard je istoveten z: EN 61837-4:2015
ICS:
31.140 3LH]RHOHNWULþQHLQ Piezoelectric and dielectric
GLHOHNWULþQHQDSUDYH devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61837-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 31.140 Supersedes EN 61837-4:2004
English Version
Surface mounted piezoelectric devices for frequency control and
selection - Standard outlines and terminal lead connections -
Part 4: Hybrid enclosure outlines
(IEC 61837-4:2015)
Dispositifs piézoélectriques à montage en surface pour la Oberflächenmontierbare piezoelektrische Bauteile zur
commande et le choix de la fréquence - Encombrements Frequenzstabilisierung und -selektion - Norm-
normalisés et connexions des sorties - Gehäusemaße und Anschlüsse -
Partie 4: Encombrements des enveloppes hybrides Teil 4: Hybridgehäuse
(IEC 61837-4:2015) (IEC 61837-4:2015)
This European Standard was approved by CENELEC on 2015-05-01. 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 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, 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
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61837-4:2015 E
Foreword
The text of document 49/1117/FDIS, future edition 2 of IEC 61837-4, 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 61837-4:2015.
The following dates are fixed:
• latest date by which the document has to be (dop) 2016-02-01
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2018-05-01
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61837-4:2004.

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 61837-4:2015 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 61837-4:2015
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 61240 2012 Piezoelectric devices - Preparation of EN 61240 2012
outline drawings of surface-mounted
devices (SMD) for frequency control and
selection - General rules
IEC 61837-4 ®
Edition 2.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Surface mounted piezoelectric devices for frequency control and selection –

Standard outlines and terminal lead connections –

Part 4: Hybrid enclosure outlines

Dispositifs piézoélectriques à montage en surface pour la commande et le choix

de la fréquence – Encombrements normalisés et connexions des sorties –

Partie 4: Encombrements des enveloppes hybrides

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.140 ISBN 978-2-8322-2428-1

– 2 – IEC 61837-4:2015 © IEC 2015
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Configuration of enclosures . 5
4 Dimensions of surface mounted piezoelectric devices with hybrid enclosure outlines
..................................................................................................................................... 5
5 Table of detailed dimensions . 5
6 Designation of surface mounted piezoelectric devices with hybrid enclosure outlines
..................................................................................................................................... 6

Table 1 – Revised Configuration . 6
Table 2 – Designation of surface mounted piezoelectric devices with hybrid enclosure
outline . 6
Table 3 – Lead connections . 7

IEC 61837-4:2015 © IEC 2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SURFACE MOUNTED PIEZOELECTRIC DEVICES
FOR FREQUENCY CONTROL AND SELECTION –
STANDARD OUTLINES AND TERMINAL LEAD CONNECTIONS –

Part 4: Hybrid enclosure outlines

FOREWORD
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