EN IEC 61837-2:2018/A2:2026
(Amendment)Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures
- Status
- Published
- Publication Date
- 13-Aug-2026
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 14-Aug-2026
- Due Date
- 26-Jun-2026
- Completion Date
- 14-Aug-2026
EN IEC 61837-2:2018/A2:2026 is a CENELEC amendment to the European standard for surface mounted piezoelectric devices for frequency control and selection, focused on ceramic enclosures. It updates the standard outlines and terminal lead connections for selected ceramic package types, so designers and manufacturers can use the same package footprints and terminal land connections consistently.
This amendment matters when you need to identify, draw, place, or check ceramic SMD packages used for crystal units, crystal oscillators, crystal filters, and SAW devices. It adds and replaces specific outline sheets and table entries in the ceramic enclosure part of EN IEC 61837-2:2018.
What does EN IEC 61837-2:2018/A2:2026 specify?
EN IEC 61837-2:2018/A2:2026 specifies amendments to the ceramic enclosure part of the series on standard outlines and terminal lead connections for surface mounted piezoelectric devices. In practice, it updates the package designations, dimensions, and terminal land connections that support mechanical drawing and PCB footprint work.
The amendment is organized around Clause 8, which covers designation of ceramic enclosures, and around Table 1 plus the affected sheets. The updates apply to specific ceramic welded, four leadless SMD outline types.
| Part of the document | What it covers |
|---|---|
| Clause 8 | Designation of ceramic enclosures |
| Table 1 | Updated designations for ceramic enclosure types |
| Sheet 45 | Revised outline and terminal land connections for Type DCC-4/1210C/01,02 |
| Sheet 48 | New outline and terminal land connections for Type DCC-4/0806C |
What are the key requirements of EN IEC 61837-2:2018/A2:2026?
The key content of EN IEC 61837-2:2018/A2:2026 is the updated identification and mechanical definition of specific ceramic SMD package types. The practical effect is that users must apply the revised package names, outlines, and terminal land connections when specifying or verifying these devices.
Updated package designations in Table 1
EN IEC 61837-2:2018/A2:2026 revises Table 1 by replacing two existing lines and adding one new line for ceramic enclosure designations. This matters because purchasing, part marking, and drawing references need to match the updated standard package names.
Revised Sheet 45 for Type DCC-4/1210C/01,02
EN IEC 61837-2:2018/A2:2026 replaces Sheet 45 with a new outline for Type DCC-4/1210C/01,02. The sheet gives the package dimensions and the terminal land connection assignment, so engineers can use it to define the PCB footprint and check mechanical compatibility.
New Sheet 48 for Type DCC-4/0806C
EN IEC 61837-2:2018/A2:2026 adds Sheet 48 for Type DCC-4/0806C. Like Sheet 45, it provides the outline dimensions and terminal land connections needed for layout, inspection, and product documentation.
Device application columns
EN IEC 61837-2:2018/A2:2026 keeps the connection tables organized by device type - crystal unit, crystal oscillator, crystal filter, and SAW devices. That helps users confirm which terminal land connection applies to the device they are designing or procuring.
Dimensioned outline drawings
EN IEC 61837-2:2018/A2:2026 uses dimensioned outline drawings with named reference points such as A, B, G, K, e and y. In practice, these are the measurements that control package size, lead spacing, and placement compatibility.
What terms does EN IEC 61837-2:2018/A2:2026 define?
SMD - Surface mounted device, meaning a component intended to be mounted directly on the surface of a printed circuit board.
SAW devices - Surface acoustic wave devices, a device family included in the terminal land connection tables.
Crystal unit - A piezoelectric frequency-control component listed as one of the device types in the connection tables.
Crystal oscillator - A frequency-control device that is shown as one of the supported device categories for the land connections.
Crystal filter - A filtering device using piezoelectric technology, also covered by the connection tables.
CENELEC - The European Committee for Electrotechnical Standardization, which approved this amendment as a European Standard.
Who uses EN IEC 61837-2:2018/A2:2026?
EN IEC 61837-2:2018/A2:2026 is used by component manufacturers, package and PCB designers, quality teams, and buyers working with piezoelectric frequency-control devices. It is also useful for test and inspection teams that need to verify package outline, dimensions, and terminal land connection compatibility.
The standard is most relevant in electronics manufacturing and procurement where ceramic enclosures must match agreed footprint conventions. It helps teams speak the same mechanical language when specifying crystal-based and SAW-based components.
What changed in EN IEC 61837-2:2018/A2:2026 from the previous edition?
EN IEC 61837-2:2018/A2:2026 is Amendment 2 to EN IEC 61837-2:2018. It updates the ceramic enclosure part by changing Table 1, replacing Sheet 45, and adding Sheet 48.
The amendment specifically:
- replaces the Table 1 entries for DCC-4/2020C and DCC-4/1210C/01,02
- adds DCC-4/0806C to Table 1
- replaces Sheet 45 with the revised Type DCC-4/1210C/01,02 sheet
- adds Sheet 48 for Type DCC-4/0806C
What does the EN IEC 61837-2:2018/A2:2026 document contain?
EN IEC 61837-2:2018/A2:2026 contains the amended designation table and the updated outline sheets for selected ceramic enclosure types. The document provides dimensioned package drawings and terminal land connection diagrams rather than performance test methods or electrical limits.
It includes a revised table entry set for ceramic enclosures and two detailed sheets with nominal, minimum, and maximum dimensions. The sheets are used for package definition, PCB layout, and product identification of ceramic, welded, four leadless SMD outlines.
Relations
- Effective Date
- 21-Oct-2025
Frequently Asked Questions
EN IEC 61837-2:2018/A2:2026 is a amendment published by CLC. Its full title is "Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures". This standard covers: Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures
Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures
EN IEC 61837-2:2018/A2:2026 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.
EN IEC 61837-2:2018/A2:2026 has the following relationships with other standards: It is inter standard links to EN IEC 61837-2:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 61837-2:2018/A2:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2026
Površinsko nameščeni piezoelektrični elementi za krmiljenje in izbiranje
(filtriranje) frekvenc - Standardne mere in priključni kontakti - 2. del: Keramični
okrovi - Dopolnilo A2 (IEC 61837-2:2018/AMD2:2026)
Surface mounted piezoelectric devices for frequency control and selection - Standard
outlines and terminal lead connections - Part 2: Ceramic enclosures (IEC 61837-
2:2018/AMD2:2026)
Oberflächenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -
selektion - Norm-Gehäusemaße und Anschlüsse - Teil 2: Keramikgehäuse (IEC 61837-
2:2018/AMD2:2026)
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 (IEC 61837-2:2018/AMD2:2026)
Ta slovenski standard je istoveten z: EN IEC 61837-2:2018/A2:2026
ICS:
31.140 Piezoelektrične naprave Piezoelectric devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61837-2:2018/A2
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2026
ICS 31.140
English Version
Surface mounted piezoelectric devices for frequency control and
selection - Standard outlines and terminal lead connections -
Part 2: Ceramic enclosures
(IEC 61837-2:2018/AMD2:2026)
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 - Partie 2: Enveloppes Gehäusemaße und Anschlüsse - Teil 2: Keramikgehäuse
en céramique (IEC 61837-2:2018/AMD2:2026)
(IEC 61837-2:2018/AMD2:2026)
This amendment A1 modifies the European Standard EN IEC 61837-2:2018; it was approved by CENELEC on 2026-07-23. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61837-2:2018/A2:2026 E
European foreword
The text of document 49/1523/CDV, future edition 3 of IEC 61837-2/AMD2, prepared by 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 IEC 61837-2:2018/A2:2026.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-08-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-08-31
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61837-2:2018/AMD2:2026 was approved by CENELEC as
a European Standard without any modification.
IEC 61837-2 ®
Edition 3.0 2026-06
INTERNATIONAL
STANDARD
AMENDMENT 2
Surface mounted piezoelectric devices for frequency control and selection -
Standard outlines and terminal lead connections -
Part 2: Ceramic enclosures
ICS 31.140 ISBN 978-2-8327-1254-2
IEC 61837-2:2018-05/AMD2:2026-06(en)
IEC 61837-2/AMD2:2026 © IEC 2026
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
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
...