Amendment 2 - Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures

Oberflächenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -selektion - Norm-Gehäusemaße und Anschlüsse - Teil 2: Keramikgehäuse

Dispositifs piézoélectriques à montage en surface pour la commande et le choix de la fréquence - Encombrements normalisés et connexions des sorties - Partie 2: Enveloppes en céramique

Površinsko nameščeni piezoelektrični elementi za krmiljenje in izbiranje (filtriranje) frekvenc - Standardne mere in priključni kontakti - 2. del: Keramični okrovi - Dopolnilo A2

General Information

Status
Not Published
Public Enquiry End Date
26-Feb-2026
Technical Committee
I11 - Imaginarni 11
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
09-Dec-2025
Due Date
28-Apr-2026

Relations

Effective Date
21-Oct-2025

Overview

The SIST EN IEC 61837-2:2018/oprA2:2026 Amendment 2 is a critical update to the international standard governing surface mounted piezoelectric devices for frequency control and selection, specifically focusing on standard outlines and terminal lead connections for ceramic enclosures. This amendment is issued by the CLC (European Committee for Electrotechnical Standardization) and is maintained under the technical supervision of IEC Technical Committee 49 (TC49), which specializes in piezoelectric, dielectric, and electrostatic devices for frequency control, selection, and detection.

This standard amendment introduces updates and new types of ceramic enclosure designs, crucial for enhancing the reliability, uniformity, and interoperability of piezoelectric surface-mounted devices (SMD) used in frequency stabilization applications. It provides detailed mechanical specifications and terminal configurations for various ceramic enclosures, ensuring standardized dimensions and lead connections.

Key Topics

  • Surface Mounted Piezoelectric Devices
    Focus on devices used for frequency control and frequency selection applications that are surface-mounted on printed circuit boards (PCBs).

  • Ceramic Enclosures
    Detailed outlines and mechanical dimensions for ceramic-based packages that house piezoelectric components, including welded constructions.

  • Standardized Enclosure Types
    Extended list of ceramic enclosure types such as QCC (Quartz Ceramic Containers) and DCC (Dielectric Ceramic Containers) with various lead counts and physical dimensions.

  • Terminal Lead Connections
    Defined terminal land configurations for different enclosure types to ensure compatibility and ease of integration in systems, applicable to crystal units, crystal oscillators, filters, and SAW (Surface Acoustic Wave) devices.

  • Mechanical and Dimensional Specifications
    Precise measurements for each enclosure outline-dimensions like leadless SMD outlines, thickness, length, width, and land patterns-are standardized for repeatability and manufacturing consistency.

  • Amendment Highlights

    • Addition of new ceramic enclosure types DCC-4/0806C and updates to DCC-4/1210C outlines and terminal assignments.
    • Harmonization across multiple regional standards with multilingual references enhancing global implementation.

Applications

  • Frequency Control Components
    This standard is essential for manufacturers designing and producing piezoelectric elements such as crystal oscillators and filters that require ceramic surface-mounted enclosures.

  • Electronic Circuit Design
    Enables designers to select components with standardized mechanical interfaces, ensuring reliable insertion on PCBs without redesign or fit issues.

  • Telecommunications Equipment
    Use in frequency stabilization modules for communication devices and systems, requiring high precision and stable oscillators.

  • Consumer Electronics
    Integration in compact devices where size and component compatibility are critical, such as smartphones, wearables, and IoT devices.

  • Industrial & Automotive Electronics
    Application in high-reliability environments demanding ceramic enclosure robustness for frequency control devices.

  • SAW Device Packaging
    Standardized packages accommodating surface acoustic wave devices used in advanced filtering and sensing applications.

Related Standards

  • IEC 61837 Series
    The base standard series covering piezoelectric devices for frequency control and selection, including parts for different enclosure types and device categories.

  • IEC TC49 Technical Specifications
    Additional technical reports and specifications on piezoelectric materials, components, and associated technologies for frequency applications.

  • ISO/IEC Directives
    Guidelines followed for the drafting and maintenance of this amendment, ensuring international compatibility and procedural uniformity.

  • CENELEC Harmonized Standards
    Parallel voting and adoption in the European regional standardization to ensure market consistency.


By adhering to SIST EN IEC 61837-2:2018/oprA2:2026 Amendment 2, manufacturers and designers can ensure their surface-mounted piezoelectric devices meet current international specifications for ceramic enclosures, promoting compatibility, performance, and market acceptance in frequency control applications worldwide.

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SIST EN IEC 61837-2:2018/oprA2:2026

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Frequently Asked Questions

SIST EN IEC 61837-2:2018/oprA2:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Amendment 2 - Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures". This standard covers: Amendment 2 - Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures

Amendment 2 - Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures

SIST EN IEC 61837-2:2018/oprA2:2026 is classified under the following ICS (International Classification for Standards) categories: 31.140 - Piezoelectric devices. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN IEC 61837-2:2018/oprA2:2026 has the following relationships with other standards: It is inter standard links to SIST EN IEC 61837-2:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase SIST EN IEC 61837-2:2018/oprA2:2026 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-februar-2026
Površinsko nameščeni piezoelektrični elementi za krmiljenje in izbiranje
(filtriranje) frekvenc - Standardne mere in priključni kontakti - 2. del: Keramični
okrovi - Dopolnilo A2
Amendment 2 - Surface mounted piezoelectric devices for frequency control and
selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures
Oberflächenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -
selektion - Norm-Gehäusemaße und Anschlüsse - Teil 2: Keramikgehäuse
Dispositifs piézoélectriques à montage en surface pour la commande et le choix de la
fréquence - Encombrements normalisés et connexions des sorties - Partie 2:
Enveloppes en céramique
Ta slovenski standard je istoveten z: EN IEC 61837-2:2018/prA2:2025
ICS:
31.140 Piezoelektrične naprave Piezoelectric devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

49/1523/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61837-2/AMD2 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-12-05 2026-02-27
SUPERSEDES DOCUMENTS:
49/1522/RR
IEC TC 49 : PIEZOELECTRIC, DIELECTRIC AND ELECTROSTATIC DEVICES AND ASSOCIATED MATERIALS FOR FREQUENCY
CONTROL, SELECTION AND DETECTION
SECRETARIAT: SECRETARY:
Japan Mr Masanobu Okazaki
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
THE CENELEC MEMBERS ARE INVITED TO VOTE THROUGH
THE CENELEC ONLINE VOTING SYSTEM.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Amendment 2 - Surface mounted piezoelectric devices for frequency control and selection -
Standard outlines and terminal lead connections - Part 2: Ceramic enclosures

PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, o r any part of it,
for any other purpose without permission in writing from IEC.

IEC CDV 61837-2/AMD2 ED3 © IEC 2025

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SURFACE MOUNTED PIEZOELECTRIC DEVICES FOR FREQUENCY
CONTROL AND SELECTION - STANDARD
OUTLINES AND TERMINAL LEAD CONNECTIONS -

PART 2: CERAMIC ENCLOSURES
AMENDMENT 2
FOREWORD
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