EN 60384-9:2015

Fixed capacitors for use in electronic equipment - Part 9: Sectional specification: Fixed capacitors of ceramic dielectric, Class 2

IEC 60384-9:2015 is applicable to fixed capacitors of ceramic dielectric with a defined temperature coefficient (dielectric Class 2), intended for use in electronic equipment, including leadless capacitors but excluding fixed surface mount multilayer capacitors of ceramic dielectric. This fourth edition cancels and replaces the third edition published in 2005. This fourth edition is a result of maintenance activities related to the previous edition. All changes that have been agreed upon can be categorized as minor revisions.

Festkondensatoren zur Verwendung in Geräten der Elektronik - Teil 9: Rahmenspezifikation – Keramik-Festkondensatoren, Klasse 2

Condensateurs fixes utilisés dans les équipements électroniques - Partie 9: Spécification intermédiaire: Condensateurs fixes à diélectrique en céramique, Classe 2

L'IEC 60384-9:2015 est applicable aux condensateurs fixes en céramique diélectrique avec un coefficient de température défini (diélectrique de Classe 2), destinés à être utilisés dans des équipements électroniques, y compris les condensateurs sans plomb et à l'exclusion des condensateurs multicouches montés en surface fixe en céramique diélectrique. Cette quatrième édition annule et remplace la troisième édition parue en 2005. Cette quatrième édition est le résultat des activités de maintenance relatives à l'édition précédente. Toutes les modifications acceptées peuvent être classées comme des révisions mineures.

Pritrjeni kondenzatorji za uporabo v elektronski opremi - 9. del: Področna specifikacija: pritrjeni kondenzatorji s keramičnim dielektrikom, razred 2

Ta del standarda IEC 60384 velja za pritrjene kondenzatorje s keramičnim dielektrikom z določenim temperaturnim koeficientom (dielektrik razreda 2), namenjene uporabi v elektronski opremi, vključno s kondenzatorji brez svinca, ne velja pa za pritrjene večplastne kondenzatorje za površinsko namestitev s keramičnim dielektrikom, ki so zajeti v standardu IEC 60384-22 (razred 2).
Kondenzatorji za preprečevanje elektromagnetnih motenj niso vključeni, vendar so zajeti v standardu IEC 60384-14.

General Information

• Status: Published
• Publication Date: 14-May-2015
• ICS: 31.060.20 - Ceramic and mica capacitors
• Technical Committee: CLC/TC 40XA - CLC/TC 40XA
• Drafting Committee: IEC/TC 40 - IEC_TC_40
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 08-Apr-2020
• Completion Date: 23-Sep-2025
• Ref Project: SIST EN 60384-9:2015 - Fixed capacitors for use in electronic equipment -- Part 9: Sectional specification: Fixed capacitors of ceramic dielectric, Class 2

Relations

• Replaces: EN 60384-9:2005 - Fixed capacitors for use in electronic equipment - Part 9: Sectional specification: Fixed capacitors of ceramic dielectric, Class 2
• Effective Date: 28-Jan-2023
• Replaced By: EN IEC 60384-9:2024 - Fixed capacitors for use in electronic equipment - Part 9: Sectional specification - Fixed capacitors of ceramic dielectric, Class 2
• Effective Date: 23-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2015
1DGRPHãþD
SIST EN 60384-9:2005
3ULWUMHQLNRQGHQ]DWRUML]DXSRUDERYHOHNWURQVNLRSUHPLGHO3RGURþQD
VSHFLILNDFLMDSULWUMHQLNRQGHQ]DWRUMLVNHUDPLþQLPGLHOHNWULNRPUD]UHG
Fixed capacitors for use in electronic equipment -- Part 9: Sectional specification: Fixed
capacitors of ceramic dielectric, Class 2
Festkondensatoren zur Verwendung in Geräten der Elektronik - Teil 9:
Rahmenspezifikation – Keramik-Festkondensatoren, Klasse 2
Condensateurs fixes utilisés dans les équipements électroniques - Partie 9: Spécification
intermédiaire: Condensateurs fixes à diélectrique en céramique, Classe 2
Ta slovenski standard je istoveten z: EN 60384-9:2015
ICS:
31.060.10 Fiksni kondenzatorji Fixed capacitors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60384-9
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 31.060.20 Supersedes EN 60384-9:2005
English Version
Fixed capacitors for use in electronic equipment - Part 9:
Sectional specification: Fixed capacitors of ceramic dielectric,
Class 2
(IEC 60384-9:2015)
Condensateurs fixes utilisés dans les équipements Festkondensatoren zur Verwendung in Geräten der
électroniques - Partie 9: Spécification intermédiaire: Elektronik - Teil 9: Rahmenspezifikation - Keramik-
Condensateurs fixes à diélectrique en céramique, Classe 2 Festkondensatoren, Klasse 2
(IEC 60384-9:2015) (IEC 60384-9:2015)
This European Standard was approved by CENELEC on 2015-04-14. 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 60384-9:2015 E
Foreword
The text of document 40/2339/FDIS, future edition 4 of IEC 60384-9, prepared by IEC TC 40, "Capacitors
and resistors for electronic equipment" was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 60384-9:2015.
The following dates are fixed:
(dop) 2016-01-14
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2018-04-14
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60384-9:2005.

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 60384-9:2015 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60384-14 NOTE Harmonized as EN 60384-14.
IEC 60384-22 NOTE Harmonized as EN 60384-22.

- 3 - EN 60384-9:2015
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 60063 1963 Preferred number series for resistors and - -
capacitors
+A1 1967  - -
+A2 1977  - -
IEC 60068-1 2013 Environmental testing -- Part 1: General and EN 60068-1 2014
guidance
IEC 60384-1 2008 Fixed capacitors for use in electronic EN 60384-1 2009
equipment -- Part 1: Generic specification
IEC 61193-2 2007 Quality assessment systems -- Part 2: EN 61193-2 2007
Selection and use of sampling plans for
inspection of electronic components and
packages
ISO 3 1973 Preferred numbers; Series of preferred - -
numbers
IEC 60384-9 ®
Edition 4.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –

Part 9: Sectional specification: Fixed capacitors of ceramic dielectric, Class 2

Condensateurs fixes utilisés dans les équipements électroniques –

Partie 9: Spécification intermédiaire: Condensateurs fixes à diélectrique en

céramique, Classe 2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.20 ISBN 978-2-8322-2284-3

– 2 – IEC 60384-9:2015 © IEC 2015
CONTENTS
FOREWORD . 5
1 General . 7
1.1 Scope . 7
1.2 Object . 7
1.3 Normative references . 7
1.4 Information to be given in a detail specification . 7
1.4.1 General . 7
1.4.2 Outline drawing and dimensions . 8
1.4.3 Mounting . 8
1.4.4 Ratings and characteristics . 8
1.4.5 Marking . 9
1.5 Terms and definitions . 9
1.6 Marking . 9
1.6.1 General . 9
1.6.2 Marking on the body . 10
1.6.3 Marking of the packaging . 10
1.6.4 Additional marking . 10
2 Preferred ratings and characteristics . 10
2.1 Preferred characteristics . 10
2.2 Preferred values of ratings . 10
2.2.1 Rated temperature . 10
2.2.2 Rated voltage (U ) . 10
R
2.2.3 Category voltage (U ) . 11
C
2.2.4 Preferred values of nominal capacitance and associated tolerance
values . 11
2.2.5 Temperature characteristic of capacitance . 11
3 Quality assessment procedures . 12
3.1 Primary stage of manufacture . 12
3.2 Structurally similar components . 12
3.3 Certified test records of released lots . 12
3.4 Qualification approval . 12
3.4.1 General . 12
3.4.2 Qualification approval on the basis of the fixed sample size procedure . 12
3.4.3 Tests . 13
3.5 Quality conformance inspection . 18
3.5.1 Formation of inspection lots . 18
3.5.2 Test schedule . 19
3.5.3 Delayed delivery . 19
3.5.4 Assessment levels . 19
4 Test and measurement procedures . 20
4.1 General . 20
4.2 Special preconditioning . 20
4.3 Visual examination and check of dimensions . 20
4.4 Electrical tests . 20
4.4.1 Capacitance . 20
4.4.2 Tangent of loss angle (tan δ) . 21

IEC 60384-9:2015 © IEC 2015 – 3 –
4.4.3 Insulation resistance (R ) . 21
i
4.4.4 Voltage proof . 22
4.5 Temperature characteristic of capacitance . 23
4.5.1 Special preconditioning . 23
4.5.2 Measuring conditions . 23
4.5.3 Requirements . 23
4.6 Robustness of terminations . 23
4.7 Resistance to soldering heat . 23
4.7.1 General . 23
4.7.2 Special preconditioning . 24
4.7.3 Initial measurement . 24
4.7.4 Recovery . 24
4.7.5 Final inspection, measurements and requirements. 24
4.8 Solderability . 24
4.8.1 General . 24
4.8.2 Test conditions . 24
4.8.3 Final inspection, measurements and requirements. 24
4.9 Rapid change of temperature (if required) . 24
4.9.1 General . 24
4.9.2 Special preconditioning . 24
4.9.3 Initial measurement . 25
4.9.4 Test conditions . 25
4.9.5 Recovery . 25
4.10 Vibration . 25
4.10.1 General . 25
4.10.2 Test conditions . 25
4.10.3 Final inspection, measurements and requirements. 25
4.11 Bump (repetitive shock) . 25
4.11.1 General . 25
4.11.2 Initial measurements . 25
4.11.3 Test conditions . 25
4.11.4 Final inspection, measurements and requirements. 26
4.12 Shock (non-repetitive shock) . 26
4.12.1 General . 26
4.12.2 Initial measurements . 26
4.12.3 Test conditions . 26
4.12.4 Final inspection, measurements and requirements. 26
4.13 Climatic sequence. 27
4.13.1 General . 27
4.13.2 Special preconditioning . 27
4.13.3 Initial measurements . 27
4.13.4 Dry heat . 27
4.13.5 Damp heat, cyclic, Test Db, first cycle . 27
4.13.6 Cold. 27
4.13.7 Low air pressure . 27
4.13.8 Damp heat, cyclic, Test Db, remaining cycles . 28
4.14 Damp heat, steady state . 28
4.14.1 General . 28
4.14.2 Special preconditioning . 28

– 4 – IEC 60384-9:2015 © IEC 2015
4.14.3 Initial measurement . 29
4.14.4 Test conditions . 29
4.14.5 Recovery . 29
4.14.6 Final inspection, measurements and requirements. 29
4.15 Endurance . 30
4.15.1 General . 30
4.15.2 Special preconditioning . 30
4.15.3 Initial measurement . 30
4.15.4 Test conditions . 30
4.15.5 Recovery . 30
4.15.6 Final inspection, measurements and requirements. 30
4.16 Component solvent resistance (if applicable) . 31
4.17 Solvent resistance of the marking (if applicable) . 31
Annex A (informative) Capacitance ageing of fixed capacitors of ceramic dielectric,
Class 2 . 32
A.1 General . 32
A.2 Law of capacitance ageing . 32
A.3 Capacitance measurements and capacitance tolerance (see 4.4.1). 33
A.4 Special preconditioning (see 4.2) . 33
Bibliography . 35

Table 1 – Preferred tolerance on nominal capacitance . 11
Table 2 – Preferred values of temperature characteristics . 11
Table 3 – Sampling plan together with numbers of permissible non-conforming items
for qualification approval tests, assessment level EZ . 14
Table 4 – Test schedule for qualification approval . 15
Table 5 – Lot-by-lot inspection . 19
Table 6 – Periodic tests . 20
Table 7 – Measuring conditions . 21
Table 8 – Insulation resistance requirements . 22
Table 9 – Test voltages . 22
Table 10 – Details of measuring conditions . 23
Table 11 – Maximum capacitance change . 24
Table 12 – Preferred severities (of non-repetitive shock) . 26
Table 13 – Maximum capacitance change . 27
Table 14 – Number of damp heat cycles . 28
Table 15 – Final inspection measurements and requirements . 28
Table 16 – Test conditions for damp heat, steady state . 29
Table 17 – Final inspection, measurements and requirements . 29
Table 18 – Endurance test conditions . 30
Table 19 – Final inspection, measurements and requirements . 30

IEC 60384-9:2015 © IEC 2015 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 9: Sectional specification:
Fixed capacitors of ceramic dielectric, Class 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 the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60384-9 has been prepared by IEC technical committee 40:
Capacitors and resistors for electronic equipment.
This fourth edition cancels and replaces the third edition published in 2005. This fourth edition
is a result of maintenance activities related to the previous edition. All changes that have
been agreed upon can be categorized as minor revisions.
The text of this standard is based on the following documents:
FDIS Report on voting
40/2339/FDIS 40/2364/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

– 6 – IEC 60384-9:2015 © IEC 2015
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60384 series, published under the general title Fixed capacitors
for use in electronic equipment, 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.
IEC 60384-9:2015 © IEC 2015 – 7 –
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 9: Sectional specification:
Fixed capacitors of ceramic dielectric, Class 2

1 General
1.1 Scope
This part of IEC 60384 is applicable to fixed capacitors of ceramic dielectric with a defined
temperature coefficient (dielectric Class 2), intended for use in electronic equipment, including
leadless capacitors but excluding fixed surface mount multilayer capacitors of ceramic
dielectric, which are covered by IEC 60384-22 (Class 2).
Capacitors for electromagnetic interference suppression are not included, but are covered by
IEC 60384-14.
1.2 Object
The object of this standard is to prescribe preferred ratings and characteristics and to select
from IEC 60384-1:2008 the appropriate quality assessment procedures, tests and measuring
methods and to give general performance requirements for this type of capacitor. Test
severities and requirements prescribed in detail specifications referring to this sectional
specification shall be of equal or higher performance level because lower performance levels
are not permitted.
1.3 Normative references
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.
IEC 60063:1963, Preferred number series for resistors and capacitors
IEC 60063:1963/AMD1:1967
IEC 60063:1963/AMD2:1977
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance
IEC 60384-1:2008, Fixed capacitors for use in electronic equipment – Part 1: Generic
specification
IEC 61193-2:2007, Quality assessment systems – Part 2: Selection and use of sampling plans
for inspection of electronic components and packages
ISO 3:1973, Preferred numbers – Series of preferred numbers
1.4 Information to be given in a detail specification
1.4.1 General
Detail specifications shall be derived from the relevant blank detail specification.
Detail specifications shall not specify requirements inferior to those of the generic, sectional
or blank detail specification. When more severe requirements are included, they shall be

– 8 – IEC 60384-9:2015 © IEC 2015
listed in 1.9 of the detail specification and indicated in the test schedules, for example by an
asterisk.
The information given in 1.4.2 may for convenience, be presented in tabular form.
The following information shall be given in each detail specification and the values quoted
shall preferably be selected from those given in the appropriate clause of this sectional
specification.
1.4.2 Outline drawing and dimensions
There shall be an illustration of the capacitor as an aid to easy recognition and for comparison
of the capacitor with others.
Dimensions and their associated tolerances, which affect interchangeability and mounting,
shall be given in the detail specification. All dimensions shall preferably be stated in
millimetres, however when the original dimensions are given in inches, the converted metric
dimensions in millimetres shall be added.
Normally, the numerical values shall be given for the length of the body, the width and height
of the body and the wire spacing, or for cylindrical types, the body diameter, and the length
and diameter of the terminations. When necessary, for example when a number of items
(capacitance values/voltage ranges) are covered by a detail specification, the dimensions and
their associated tolerances shall be placed in a table below the drawing.
When the configuration is other than described above, the detail specification shall state such
dimensional information as will adequately describe the capacitors. When the capacitor is not
designed for use on printed boards, this shall be clearly stated in the detail specification.
1.4.3 Mounting
The detail specification shall specify the method of mounting to be applied for normal use and
for the application of the vibration and the bump or shock tests. The design of the capacitor
may be such that special mounting fixtures are required in its use. In this case, the detail
specification shall describe the mounting fixtures and they shall be used in the application of
the vibration and the bump or shock tests.
1.4.4 Ratings and characteristics
1.4.4.1 General
The ratings and characteristics shall be in accordance with the relevant clauses of this
standard, together with the following:
1.4.4.2 Nominal capacitance range
See 2.2.4.1.
When products approved to the detail specification have different ranges, the following
statement should be added: “The range of capacitance values available in each voltage range
is given in the register of approvals”.
1.4.4.3 Particular characteristics
Additional characteristics may be listed, when they are considered necessary to specify
adequately the component for design and application purposes.

IEC 60384-9:2015 © IEC 2015 – 9 –
1.4.4.4 Soldering
The detail specification shall prescribe the test methods, severities and requirements
applicable for the solderability and the resistance to soldering heat tests.
1.4.5 Marking
The detail specification shall specify the content of the marking on the capacitor and on the
packaging. Deviations from 1.6 shall be specifically stated.
1.5 Terms and definitions
For the purposes of this document, the applicable terms and definitions of IEC 60384-1 as
well as the following apply.
1.5.1
fixed capacitors, ceramic dielectric, Class 2
capacitor which has a dielectric with a high permittivity and is suitable for by-pass and
coupling applications or for frequency discriminating circuits where low losses and high
stability of capacitance are not of major importance
Note 1 to entry: The ceramic dielectric is characterized by the non-linear change of capacitance over the category
temperature range (see Table 2).
1.5.2
subclass
maximum percentage change of capacitance within the category temperature range with
respect to the capacitance at 20 °C
Note 1 to entry: The subclass may be expressed in code form (see Table 2).
1.5.3
rated voltage
U
R
maximum d.c. voltage which may be applied continuously to the terminations of a capacitor at
the rated temperature
Note 1 to entry: Maximum d.c. voltage is the sum of the d.c. voltage and peak a.c. voltage or peak pulse voltage
applied to the capacitor.
[SOURCE: IEC 60384-1:2008, 2.2.25, modified (addition of "the terminations of")]
1.6 Marking
1.6.1 General
See IEC 60384-1:2008, 2.4, with the following details:
The information given in the marking is normally selected from the following list; the relative
importance of each item is indicated by its position in the list:
a) nominal capacitance;
b) rated voltage (d.c. voltage may be indicated by the symbol      or       );
c) tolerance on nominal capacitance;
d) the dielectric subclass, see Table 2;
e) year and month (or week) of manufacture;
f) manufacturer's name or trade mark;
g) climatic category;
– 10 – IEC 60384-9:2015 © IEC 2015
h) manufacturer's type designation;
i) reference to the detail specification.
Information required under b) and d) may be given in code form under manufacturer’s, or
national, type or style designation.
1.6.2 Marking on the body
The capacitor shall be clearly marked with a), b) and c) of 1.6.1 and with as many as possible
of the remaining items as is considered necessary. Any duplication of information in the
marking on the capacitor should be avoided.
1.6.3 Marking of the packaging
The packaging containing the capacitor(s) shall be clearly marked with all the information
listed in 1.6.1.
1.6.4 Additional marking
Any additional marking shall be so applied that no confusion can arise.
2 Preferred ratings and characteristics
2.1 Preferred characteristics
Preferred climatic categories only shall be given in the preferred characteristics.
The capacitors covered by this standard are classified into climatic categories according to
the general rules given in IEC 60068-1:2013, Annex A.
The lower and upper category temperatures and the duration of the damp heat, steady state
test shall be chosen from the following:
–55 °C, –40 °C, –25 °C and –10 °C
− lower category temperature:
− upper category temperature: +70 °C, +85 °C, +100 °C and +125 °C
4, 10, 21 and 56 days
− duration of the damp heat, steady
state test (40 °C, 93 % RH):
The severities for the cold and dry heat tests are the lower and upper category temperatures
respectively.
2.2 Preferred values of ratings
2.2.1 Rated temperature
For capacitors covered by this standard, the rated temperature is equal to the upper category
temperature.
2.2.2 Rated voltage (U )
R
The preferred values of rated voltage are: 25, 40, 63, 100, 160, 250, 400, 630, 1 000, 1 600,
2 500, 4 000 and 6 300 V. These values conform to the basic series of preferred values R5
given in ISO 3. If other values are needed they shall be chosen from the R10 series.
The sum of the d.c. voltage and the peak a.c. voltage applied to the capacitor should not
exceed the rated voltage. The value of the peak alternating voltage should not exceed the
value determined by the permissible reactive power.

IEC 60384-9:2015 © IEC 2015 – 11 –
2.2.3 Category voltage (U )
C
Since the rated temperature is defined as the upper category temperature, the category
voltage is equal to the rated voltage, as defined in IEC 60384-1:2008, 2.2.5.
2.2.4 Preferred values of nominal capacitance and associated tolerance values
2.2.4.1 Preferred values of nominal capacitance
Nominal capacitance values shall be taken from the E3, E6 and E12 series given in
IEC 60063 preferably.
2.2.4.2 Preferred tolerances on nominal capacitance
Table 1 denotes the preferred values of tolerance on nominal capacitance.
Table 1 – Preferred tolerance on nominal capacitance
Preferred series Tolerances Letter code
%
E3 and E6 Z
–20/+80
S
–20/+50
E6 ±20 M
E6 and E12 K
±10
2.2.5 Temperature characteristic of capacitance
Table 2 denotes with a cross the preferred values of temperature characteristics with and
without d.c. voltage applied. The method of coding the subclass is also given; for example a
dielectric with a percentage change of ±20 % without d.c. voltage applied over the
temperature range from -55 °C to +125 °C, will be defined as a dielectric of Class 2C1.
Table 2 – Preferred values of temperature characteristics
Sub- Maximum capacitance change Category temperature range and
class in per cent within the
corresponding number code
letter category temperature range
code with respect to the
capacitance at 20 °C
-55/+125 °C -55/+85 °C -40/+85 °C -25/+85 °C -10/+85 °C
measured with and without a
d.c. voltage applied
Without With d.c.
d.c. voltage voltage 1 2 3 4 6
a
applied applied
2B - x x x -
±10
2C x x
x - -
±20
2D As specified in - - - x -
+20/–30
the detail
2E - x x x x
+22/–56
specification
2F - x x x x
+30/–80
2R x - - - -
±15
2X x - -
+15/–25 - -
±15
NOTE x indicates: applied;
– indicates: not applied.
a
The applied voltage is the rated d.c. voltage or as specified in the detail specification.

– 12 – IEC 60384-9:2015 © IEC 2015
The temperature range, for which the temperature characteristics of the dielectric is defined,
is the same as the category temperature range.
3 Quality assessment procedures
3.1 Primary stage of manufacture
For single layer capacitors, the primary stage of manufacture is the metallizing of the
dielectric to form the electrode; for multilayer capacitors it is the first common firing of the
dielectric-electrode assembly.
3.2 Structurally similar components
Capacitors, considered as being structurally similar, are capacitors produced with similar
processes and materials, though they may be of different case sizes and values.
3.3 Certified test records of released lots
The information required in IEC 60384-1:2008, Q.9, shall be made available when prescribed
in the detail specification and when requested by a purchaser. After the endurance test, the
parameters for which variables information is required are the capacitance change, tan δ and
the insulation resistance.
3.4 Qualification approval
3.4.1 General
The procedures for qualification approval testing are given in IEC 60384-1:2008, Q.5.
The schedule to be used for qualification approval testing on the basis of lot-by-lot and
periodic tests is given in 3.5. The procedure using a fixed sample size schedule is given in
3.4.2 and 3.4.3.
3.4.2 Qualification approval on the basis of the fixed sample size procedure
The fixed sample size procedure is described in IEC 60384-1:2008, Q.5.3 b). The sample
shall be representative of the range of capacitors for which approval is sought. This may or
may not be the complete range covered by the detail specification.
The samples shall consist of specimens having the lowest and highest voltages, and for these
voltages the lowest and highest capacitance values. When there are more than four rated
voltages an intermediate voltage shall also be tested. Thus, for the approval of a range,
testing is required of either four or six values (capacitance/voltage combinations). When the
range consists of less than four values, the number of specimens to be tested shall be that
required for four values.
Spare specimens are permitted as follows:
Two (for six values) or three (for four values) per value may be used as replacements for
specimens which are non-conforming because of incidents not attributable to the
manufacturer.
The numbers given in Group 0 assume that all groups are applicable. If this is not so, the
numbers may be reduced accordingly.
When additional groups are introduced into the qualification approval test schedule, the
number of specimens required for Group 0 shall be increased by the same number as that
required for the additional groups.

IEC 60384-9:2015 © IEC 2015 – 13 –
Table 3 gives the number of samples to be tested in each group or subgroup together with the
number of permissible non-conformances for qualification approval tests.
3.4.3 Tests
The complete series of tests specified in Table 3 and Table 4 are required for the approval of
capacitors covered by one detail specification. The tests of each group shall be carried out in
the order given.
The whole sample shall be subjected to the tests of Group 0 and then divided for the other
groups.
Non-conforming specimens found during the tests of Group 0 shall not be used for the other
groups.
“One non-conforming item” is counted when a capacitor has not satisfied the whole or a part
of the tests of a group.
The approval is granted when the number of non-conforming items is zero.
Tables 3 and 4 together form the fixed sample size test schedule for which Table 3 includes
the details for the sampling and permissible non-conforming item for the different tests or
groups of test, whereas Table 4 together with the details of test contained in Clause 4 gives a
complete summary of test conditions and performance requirements and indicates where, for
example for the test method or conditions of test, a choice has to be made in the detail
specification.
The conditions of test and performance requirements for the fixed sample size test schedule
shall be identical to those prescribed in the detail specification for quality conformance
inspection.
– 14 – IEC 60384-9:2015 © IEC 2015
Table 3 – Sampling plan together with numbers of permissible non-conforming items
for qualification approval tests, assessment level EZ
Group Test Subclause of this Number of Permissible
publication specimens number of
N°.
non-conforming
items
b d
n c
Visual examination 4.3
Dimensions 4.3
Capacitance 4.4.1
Tangent of loss angle 4.4
...