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EN IEC 61837-2:2018/A1:2020

(Amendment)

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

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 A1 (IEC 61837-2:2018/A1:2020)

General Information

Status
Published
Publication Date
05-Nov-2020
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
06-Nov-2020
Completion Date
06-Nov-2020
Ref Project
SIST EN IEC 61837-2:2018/A1:2021 - Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures (IEC 61837-2:2018/A1:2020)

Relations

Amends
EN IEC 61837-2:2018 - Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures
Effective Date
03-Mar-2020

Overview

EN IEC 61837-2:2018/A1:2020 (adopted by CLC) is an amendment to the European adoption of IEC 61837‑2. It defines standardized outlines, dimensional drawings and terminal/land connections for surface‑mounted piezoelectric devices housed in ceramic enclosures. The amendment updates the designation table of ceramic enclosure types, adds new sheet types (for example DCC‑8/3225A and DCC‑4/1008C), and replaces several existing sheet designs with revised dimensional and terminal details. The publication is aimed at harmonizing SMD footprint and pin‑assignment practices for crystal units, crystal oscillators, crystal filters and SAW devices.

Key topics and requirements

  • Standardized ceramic enclosures: updated list of enclosure types (QCC/DCC designations) and corresponding sheet numbers that describe geometry and outline.
  • Dimensional drawings: metric dimensions (mm) for body sizes, terminal dimensions (K, L, A, B, e, y etc.) and recommended scale views to support PCB footprint design.
  • Terminal land / lead connections: explicit terminal numbering and functional mapping for device families (crystal unit, crystal oscillator, crystal filter, SAW devices). Common terminal assignments include Output, Ground, DC supply, Option, INT, SCL, SDA, NC.
  • New and revised sheet details: addition of two sheet types and replacement of eight sheet designs to reflect updated SMD outlines and terminal arrangements.
  • Conformance and implementation: the amendment was approved by CENELEC and is to be adopted nationally without alteration per CEN/CENELEC rules.

Applications and users

This standard is practical for:

  • PCB designers and layout engineers creating land patterns for SMD piezoelectric components (crystals, oscillators, filters, SAW).
  • Component manufacturers and packaging engineers defining ceramic SMD enclosure outlines and terminal metallurgy.
  • OEMs and electronics integrators ensuring mechanical compatibility and interchangeability of frequency control components.
  • Test laboratories and procurement specialists verifying part footprints and terminal functionality against a recognized European/IEC reference. Using the standard reduces rework, improves cross‑supplier compatibility and speeds time‑to‑market for devices relying on precise frequency control.

Related standards

  • The amendment complements the broader IEC/EN 61837 series for surface‑mounted piezoelectric devices; users should refer to other parts of IEC 61837 for additional requirements (general conditions, other enclosure materials and functional specifications).

Keywords: EN IEC 61837-2, EN IEC 61837-2:2018/A1:2020, surface mounted piezoelectric devices, ceramic enclosures, SMD piezo outlines, terminal lead connections, crystal oscillator footprint, SAW device land pattern, CENELEC.

EN IEC 61837-2:2018/A1:2021EN IEC 61837-2:2018/A1:2021
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EN IEC 61837-2:2018/A1:2021
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Standards Content (Sample)


SLOVENSKI STANDARD
01-januar-2021
Površinsko nameščeni piezoelektrični elementi za krmiljenje in izbiranje
(filtriranje) frekvenc - Standardne mere in priključni kontakti - 2. del: Keramični
okrovi - Dopolnilo A1 (IEC 61837-2:2018/A1:2020)
Surface mounted piezoelectric devices for frequency control and selection - Standard
outlines and terminal lead connections - Part 2: Ceramic enclosures (IEC 61837-
2:2018/A1:2020)
Oberflächenmontierbare piezoelektrische Bauteile zur Frequenzstabilisierung und -
selektion - Norm-Gehäusemaße und Anschlüsse - Teil 2: Keramikgehäuse (IEC 61837-
2:2018/A1:2020)
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/A1:2020)
Ta slovenski standard je istoveten z: EN IEC 61837-2:2018/A1:2020
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/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2020
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/A1:2020)
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/A1:2020)
(IEC 61837-2:2018/A1:2020)
This amendment A1 modifies the European Standard EN IEC 61837-2:2018; it was approved by CENELEC on 2020-10-29. 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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61837-2:2018/A1:2020 E

European foreword
The text of document 49/1338/CDV, future IEC 61837-2/A1, 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
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-07-29
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-10-29
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.
Endorsement notice
The text of the International Standard IEC 61837-2:2018/A1:2020 was approved by CENELEC as a
European Standard without any modification.

IEC 61837-2 ®
Edition 3.0 2020-09
INTERNATIONAL
STANDARD
AMENDMENT 1
Surface mounted piezoelectric devices for frequency control and selection –

Standard outlines and terminal lead connections –

Part 2: Ceramic enclosures
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.140 ISBN 978-2-8322-8838-2

– 2 – IEC 61837-2:2018/AMD1:2020
© IEC 2020
FOREWORD
This amendment has been prepared by IEC technical committee 49: Piezoelectric, dielectric
and electrostatic devices and associated materials for frequency control, selection and
detection.
The text of this amendment is based on the following documents:
FDIS Report on voting
49/1338/CDV 49/1347/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base 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.
_____________
8 Designation of ceramic enclosures
Replace Table 1 with the following:

IEC 61837-2:2018/AMD1:2020 – 3 –
© IEC 2020
Table 1 – Designation of ceramic enclosures
No. Type Old type Sheet No. Description
1 QCC-18/1809A QCC-18/01 Sheet 1 Ceramic, welded, eighteen leadless SMD outline
2 QCC-12/1407A Sheet 2 Ceramic, welded, twelve leadless SMD outline
3 DCC-4/1206A DCC-4/01 Sheet 3 Ceramic, four leadless SMD outline
4 DCC-2/1206A Sheet 4 Ceramic, two leadless SMD outline
5 QCC-10/9272A Sheet 5 Ceramic, welded, ten leadless SMD outline
6 DCC-4/9070A Sheet 6 Ceramic, welded, four leadless SMD outline
7 DCC-4/8045B DCC-04/02, 03 Sheet 7 Ceramic, welded, four leadless SMD outline
8 DCC-2/8045B Sheet 8 Ceramic, welded, two leadless SMD outline
9 DCC-6/7834B Sheet 9 Ceramic, welded, six leadless SMD outline
10 DCC-6/7050A Sheet 10 Ceramic, welded, six leadless SMD outline
11 DCC-4/7050A DCC-4/08 Sheet 11 Ceramic, welded, four leadless SMD outline
12 DCC-4/7050B DCC-4/04, 05 Sheet 12 Ceramic, welded, four leadless SMD outline
13 QCC-10/7050A Sheet 13 Ceramic, welded, ten leadless SMD outline
14 QCC-6/7050A QCC-6/01, 02 Sheet 14 Ceramic, welded, six leadless SMD outline
15 DCC-6/6035A DCC-4/06, 07 Sheet 15 Ceramic, welded, six leadless SMD outline
16 DCC-4/6035C Sheet 16 Ceramic, welded, four leadless SMD outline
17 DCC-2/6035C Sheet 17 Ceramic, welded, two leadless SMD outline
18 QCC-8/5050A QCC-8/02 Sheet 18 Ceramic, welded, eight leadless SMD outline
19 QCC-12/5045A QCC-12/02 Sheet 19 Ceramic, welded, twelve leadless SMD outline
20 QCC-8/5045A Sheet 20 Ceramic, welded, eight leadless SMD outline
21 DCC-6/5032A Sheet 21 Ceramic, welded, six leadless SMD outline
22 DCC-4/5032A Sheet 22 Ceramic, welded, four leadless SMD outline
23 DCC-4/5032C Sheet 23 Ceramic, welded, four leadless SMD outline
24 DCC-2/5032B DCC-2/01 Sheet 24 Ceramic, welded, two leadless SMD outline
25 DCC-2/4818C Sheet 25 Ceramic, welded, two leadless SMD outline
26 DCC-2/4115C Sheet 26 Ceramic, welded, two leadless SMD outline
27 DCC-4/4025C DCC-6/01 Sheet 27 Ceramic, welded, four leadless SMD outline
28 QCC-8/3838A Sheet 28 Ceramic, welded, eight leadless SMD outline
29 DCC-6/3838A Sheet 29 Ceramic, welded, six leadless SMD outline
30 DCC-6/3225A Sheet 30 Ceramic, welded, six leadless SMD outline
31 DCC-4/3225C Sheet 31 Ceramic, welded, four leadless SMD outline
32 DCC-4/3215C Sheet 32 Ceramic, welded, four leadless SMD outline
33 DCC-2/3215C Sheet 33 Ceramic, welded, two leadless SMD outline
34 QCC-8/3030B Sheet 34 Ceramic, welded, eight leadless SMD outline
...

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Frequently Asked Questions

EN IEC 61837-2:2018/A1:2020 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/A1:2020 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/A1:2020 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.

You can purchase EN IEC 61837-2:2018/A1:2020 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 CLC standards.

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