IEC 60368-3:2010

IEC 60368-3 ®
Edition 4.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Piezoelectric filters of assessed quality –
Part 3: Standard outlines and lead connections

Filtres piézoélectriques sous assurance de la qualité –
Partie 3: Encombrements normalisés et connexions des sorties

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IEC 60368-3 ®
Edition 4.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Piezoelectric filters of assessed quality –
Part 3: Standard outlines and lead connections

Filtres piézoélectriques sous assurance de la qualité –
Partie 3: Encombrements normalisés et connexions des sorties

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
P
CODE PRIX
ICS 31.140 ISBN 978-2-88912-244-8
– 2 – 60368-3 Ó IEC:2010
CONTENTS
FOREW ORD . 3
1 Sc o pe . 5
2 Guidance for the standardization of outline drawings for frequency control and
selection devices . 5
3 Dimensions of piezoelectric filter enclosures . 7
4 Designation of piezoelectric filter enclosures . 7
Bibliography . 16

Figure 1 – Guidance for outline drawings . 6

Table 1 – Designation of piezoelectric filter enclosures . 7

60368-3 Ó IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PIEZOELECTRIC FILTERS OF ASSESSED QUALITY –

Part 3: Standard outlines and lead connections

FOREWORD
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60368-3 has been prepared by lEC Technical Committee 49:
Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control,
selection and detection.
This fourth edition cancels and replaces the third edition published in 2001 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) four enclosure types (CF05, CF06, CF07 and CF09) have been deleted from previous edition,
IEC 60368-3 Ed. 3.0;
b) now standardized enclosures are totally 16 types. These are listed in Table.1.

– 4 – 60368-3 Ó IEC:2010
The text of this standard is based on the following documents:
CDV Report on voting
49/887/CDV 49/905A/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 60368 under the general title Piezoelectric filters of assessed quality can
be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site 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.
60368-3 Ó IEC:2010 – 5 –
PIEZOELECTRIC FILTERS OF ASSESSED QUALITY –

Part 3: Standard outlines and lead connections

1 Scope
This part of IEC 60368 specifies the outline drawing for piezoelectric filters with lead enclosures.
2 Guidance for the standardization of outline drawings for frequency control
and selection devices
In order to achieve a uniform presentation of all outline drawings for frequency control and
selection devices the following guide shall be considered:
2.1 An outline drawing shall show all dimensional and geometrical characteristics of an
enclosure necessary to ensure mechanical interchangeability with all other enclosures of the
same outline. Enlarged detailed view may be used, if necessary.
2.2 The outline drawing shall consist of three parts:
2.2.1 A drawing with dimensional symbols (capital letter) as shown in Figure 1 below with
applicable notes, if necessary.
2.2.2 A tabular listing relating to the drawing symbols to the actual dimensions. Where possible
this shall be shown on the same page as the drawing.
2.2.3 An "actual-size" sketch (scale 1:1).
2.3 The outline drawing shall be executed in the third angle projection.
2.4 The function and identification of the lead connections (termination) shall be determined by
agreement between the supplier and user. They shall not be defined on the outline drawing.
2.5 Descriptive notes may be used at the bottom of/ or adjacent to, the drawing with proper
reference to the body of the drawing.
2.6 All dimensions shall be in millimeters.
2.7 0utline dimensions A, B, C, D and E shall be listed with maximum values only.
2.8 Lead (termination) cross-sectional dimensions shall be listed with minimum and maximum
values. If applicable, nominal dimensions may be added.
2.9 The spacing of the leads (termination) – symbol H – shall be listed with minimum, nominal
and maximum dimensions.
2.10 Leads (terminations) for soldering application shall be specified with the minimum length
dimensions (symbol L) only.
Lead (termination) for plug-in application shall be specified with minimum and maximum length
dimensions.
– 6 – 60368-3 Ó IEC:2010
2.11 If leads (terminations) are provided with an undercut dimensions U and W shall be listed
with minimum dimensions only.
E
D
C
Actual size
U
L
W
H
K B
A
IEIEC C  2244 / 02481/310
Dimensions (mm)
Notes
Ref.
Min. Nom. Max.
A ― ― X
B ― ― X
C ― ― X
D
― ― X
E ― ― X
H
X X X
K X ― X 1
L
X ― X
U X ― ― 2
W X ― ― 2
NOTE 1 In this sentence, a comment related to K or to the number X should be notified.
NOTE 2 In this sentence, a comment related to U and W or to the number X should be notified

Scale
Figure 1 – Guidance for outline drawings

2 :1
Sheet - number
60368-3 Ó IEC:2010 – 7 –
3 Dimensions of piezoelectric filter enclosures
The dimensions in this standard apply to the competed piezoelectric filters.
Only those dimensions which meet the requirements of the guidance for standardization of
outline drawings are given (see Clause 2).
4 Designation of piezoelectric filter enclosures
Table 1 – Designation of piezoelectric
...