EN 60384-18:2016

Fixed capacitors for use in electronic equipment - Part 18: Sectional specification - Fixed aluminium electrolytic surface mount capacitors with solid (MnO2) and non-solid electrolyte

IEC 60384-18:2007 applies to fixed aluminium electrolytic surface mount capacitors with solid (MnO2) and non-solid electrolyte primarily intended for d.c. applications for use in electronic equipment. It prescribes preferred ratings and characteristics and to select from IEC 60384-1 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 should be of equal or higher performance level, because lower performance levels are not permitted. This second edition cancels and replaces the first edition published in 1993 and its Amendment 1 (1998). This edition constitutes a minor revision related to tables, figures and references.

Festkondensatoren zur Verwendung in Geräten der Elektronik - Teil 18: Rahmenspezifikation - Oberflächenmontierbare Aluminium-Elektrolyt-Kondensatoren mit festen (MnO2) und flüssigen Elektrolyten

Condensateurs fixes utilisés dans les équipements électroniques - Partie 18: Spécification intermédiaire - Condensateurs fixes électrolytiques à l’aluminium pour montage en surface à électrolyte solide (MnO2) et non solide

L'IEC 60384-18:2016 s'applique aux condensateurs fixes électrolytiques à l'aluminium pour montage en surface à électrolyte solide (MnO2) et à électrolyte non solide destinés principalement aux applications en courant continu dans des équipements électroniques. La présente norme a pour objet de prescrire les valeurs assignées et caractéristiques préférentielles et de sélectionner, en se référant à l'IEC 60384-1:2016, les procédures d'assurance de la qualité appropriées, les essais et les méthodes de mesure et de donner les exigences de performances générales pour ce type de condensateur. Il convient que les sévérités et les exigences d'essai prescrites dans les spécifications particulières faisant référence à la présente spécification intermédiaire présentent des niveaux de performances supérieurs ou égaux, parce que les niveaux de performance inférieurs ne sont pas autorisés. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) Révision de la structure fondé sur les Directives ISO/IEC, Partie 2:2011 (sixième édition) dans la mesure du possible, et harmonisation avec d'autres types de documents similaires. b) En outre, révision et de l'Article 4 et des tableaux pour éviter les redondances et les contradictions.

Nespremenljivi kondenzatorji za uporabo v elektronski opremi - 18. del: Področna specifikacija - Nespremenljivi aluminijski elektrolitski kondenzatorji s trdim (MnO2) in netrdim elektrolitom za površinsko montažo (IEC 60384-18:2016)

IEC 60384-18:2007 se uporablja za nespremenljive aluminijske elektrolitske kondenzatorje s trdim (MnO₂) in netrdnim elektrolitom za površinsko montažo, ki so namenjeni predvsem za uporabo enosmernega toka v elektronski opremi. Namen tega standarda je predpisati prednostne nazivne vrednosti in lastnosti, izbrati primerne postopke za oceno kakovosti, preskuse in merilne metode iz standarda IEC 60384-1 ter podati splošne zahteve glede zmogljivosti za ta tip kondenzatorja. Preskusne stopnje in zahteve, predpisane v podrobnih specifikacijah, ki se navezujejo na to področno specifikacijo, morajo biti enake ali višje ravni učinkovitosti, kajti nižje ravni niso dovoljene. Druga izdaja razveljavlja in nadomešča prvo izdajo, objavljeno leta 1993, in njeno dopolnilo 1 (1998). Ta izdaja vključuje manjše popravke, povezane s preglednicami, slikami in referencami.

General Information

• Status: Published
• Publication Date: 15-Sep-2016
• Withdrawal Date: 28-Jun-2019
• ICS: 31.060.50 - Aluminium electrolytic capacitors
• Technical Committee: CLC/TC 40XA - CLC/TC 40XA
• Drafting Committee: IEC/TC 40 - IEC_TC_40
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 16-Sep-2016
• Completion Date: 16-Sep-2016
• Ref Project: SIST EN 60384-18:2016 - Fixed capacitors for use in electronic equipment - Part 18: Sectional specification - Fixed aluminium electrolytic surface mount capacitors with solid (MnO2) and non-solid electrolyte (IEC 60384-18:2016)

Relations

• Replaces: EN 60384-18:2007 - Fixed capacitors for use in electronic equipment - Part 18: Sectional specification - Fixed aluminium electrolytic surface mount capacitors with solid (MnO2) and non-solid electrolyte
• Effective Date: 31-Mar-2015

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2016
1DGRPHãþD
SIST EN 60384-18:2008
1HVSUHPHQOMLYLNRQGHQ]DWRUML]DXSRUDERYHOHNWURQVNLRSUHPLGHO3RGURþQD
VSHFLILNDFLMD1HVSUHPHQOMLYLDOXPLQLMVNLHOHNWUROLWVNLNRQGHQ]DWRUMLVWUGLP0Q2
LQQHWUGLPHOHNWUROLWRP]DSRYUãLQVNRPRQWDåR,(&
Fixed capacitors for use in electronic equipment - Part 18: Sectional specification - Fixed
aluminium electrolytic surface mount capacitors with solid (MnO2) and non-solid
electrolyte (IEC 60384-18:2016)
Ta slovenski standard je istoveten z: EN 60384-18:2016
ICS:
31.060.50 Aluminijski elektrolitni Aluminium electrolytic
kondenzatorji capacitors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60384-18

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2016
ICS 31.060.50 Supersedes EN 60384-18:2007
English Version
Fixed capacitors for use in electronic equipment - Part 18:
Sectional specification - Fixed aluminium electrolytic surface
mount capacitors with solid (MnO2) and non-solid electrolyte
(IEC 60384-18:2016)
Condensateurs fixes utilisés dans les équipements Festkondensatoren zur Verwendung in Geräten der
électroniques - Partie 18: Spécification intermédiaire - Elektronik - Teil 18: Rahmenspezifikation -
Condensateurs fixes électrolytiques à l'aluminium pour Oberflächenmontierbare Aluminium-Elektrolyt-
montage en surface à électrolyte solide (MnO2) et non Kondensatoren mit festen (MnO2) und flüssigen
solide Elektrolyten
(IEC 60384-18:2016) (IEC 60384-18:2016)
This European Standard was approved by CENELEC on 2016-06-29. 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
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60384-18:2016 E
European foreword
The text of document 40/2460/FDIS, future edition 3 of IEC 60384-18, prepared by
IEC/TC 40 "Capacitors and resistors for electronic equipment" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN 60384-18:2016.

The following dates are fixed:
(dop) 2017-03-29
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-06-29
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60384-18:2007.

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 60384-18:2016 was approved by CENELEC as a European
Standard without any modification.
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 -  Preferred number series for resistors and EN 60063 -
capacitors
IEC 60068-1 2013 Environmental testing -- Part 1: General EN 60068-1 2014
and guidance
IEC 60068-2-58 2015 Environmental testing - Part 2-58: Tests - EN 60068-2-58 2015
Test Td: Test methods for solderability,
resistance to dissolution of metallization
and to soldering heat of surface mounting
devices (SMD)
IEC 60384-1 2016 Fixed capacitors for use in electronic EN 60384-1 2016
equipment - Part 1: Generic specification
IEC 60417 -  Graphical symbols for use on equipment. - -
Index, survey and compilation of the single
sheets.
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 -  Preferred numbers; Series of preferred - -
numbers
IEC 60384-18 ®
Edition 3.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –

Part 18: Sectional specification – Fixed aluminium electrolytic surface mount

capacitors with solid (MnO ) and non-solid electrolyte

Condensateurs fixes utilisés dans les équipements électroniques –

Partie 18: Spécification intermédiaire – Condensateurs fixes électrolytiques à

l’aluminium pour montage en surface à électrolyte solide (MnO ) et non solide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.50 ISBN 978-2-8322-3423-5

– 2 – IEC 60384-18:2016 © IEC 2016
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 .8
1.4.1 General .8
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 Information for marking .9
1.6.3 Marking on capacitors .9
1.6.4 Marking on packaging . 10
2 Preferred ratings and characteristics . 10
2.1 Preferred characteristics . 10
2.2 Preferred values of ratings . 10
2.2.1 Nominal capacitance (C ) . 10
N
2.2.2 Tolerance on nominal capacitance . 10
2.2.3 Rated voltage (U ) . 10
R
2.2.4 Category voltage (U ) . 10
C
2.2.5 Surge voltage . 11
2.2.6 Rated temperature . 11
3 Quality assessment procedures . 11
3.1 Primary stage of manufacture . 11
3.2 Structurally similar components . 11
3.3 Certified test records of released lots . 11
3.4 Qualification approval procedures . 11
3.4.1 General . 11
3.4.2 Qualification approval on the basis of the fixed sample size procedure . 11
3.4.3 Tests . 12
3.5 Quality conformance inspection . 22
3.5.1 Formation of inspection lots . 22
3.5.2 Test schedule . 22
3.5.3 Delayed delivery . 22
3.5.4 Assessment levels . 22
4 Test and measurement procedures . 23
4.1 Drying . 23
4.2 Measuring conditions . 24
4.3 Mounting . 24
4.3.1 General . 24
4.3.2 Initial inspections . 24
4.3.3 Test conditions . 24

IEC 60384-18:2016 © IEC 2016 – 3 –
4.3.4 Final inspections . 24
4.4 Visual examination and check of dimensions . 24
4.4.1 General . 24
4.4.2 Visual examination and check of dimensions . 24
4.4.3 Requirements . 24
4.5 Electrical tests . 24
4.5.1 Leakage current . 24
4.5.2 Capacitance . 25
4.5.3 Tangent of loss angle (tan δ) or equivalent series resistance (ESR) . 25
4.5.4 Impedance (if required) . 26
4.6 Resistance to soldering heat . 26
4.6.1 General . 26
4.6.2 Test conditions . 26
4.6.3 Recovery . 26
4.6.4 Final inspections and requirements . 26
4.7 Solderability . 26
4.7.1 General . 26
4.7.2 Test conditions . 27
4.7.3 Final inspections and requirements . 27
4.8 Shear test . 27
4.8.1 General . 27
4.8.2 Final inspections and requirements . 27
4.9 Substrate bending test . 27
4.9.1 General . 27
4.9.2 Final inspections and requirements . 27
4.10 Rapid change of temperature . 27
4.10.1 General . 27
4.10.2 Initial inspections . 27
4.10.3 Test conditions . 27
4.10.4 Recovery . 27
4.10.5 Final inspections and requirements . 27
4.11 Climatic sequence . 28
4.11.1 General . 28
4.11.2 Initial inspections . 28
4.11.3 Dry heat . 28
4.11.4 Damp heat, cyclic, Test Db, first cycle . 28
4.11.5 Cold . 28
4.11.6 Damp heat, cyclic, Test Db, remaining cycles . 28
4.11.7 Recovery . 28
4.11.8 Final inspections and requirements . 28
4.12 Damp heat, steady state . 28
4.12.1 General . 28
4.12.2 Initial inspections . 28
4.12.3 Test conditions . 28
4.12.4 Recovery . 29
4.12.5 Final inspections and requirements . 29
4.13 Characteristics at high and low temperature . 29
4.13.1 General . 29

– 4 – IEC 60384-18:2016 © IEC 2016
4.13.2 Inspections and requirements . 29
4.14 Surge voltage . 29
4.14.1 General . 29
4.14.2 Initial inspections . 29
4.14.3 Test conditions . 29
4.14.4 Recovery . 29
4.14.5 Final inspections and requirements . 30
4.15 Endurance . 30
4.15.1 General . 30
4.15.2 Initial inspections . 30
4.15.3 Test conditions . 30
4.15.4 Recovery . 30
4.15.5 Final inspections and requirements . 30
4.16 Reverse voltage (if required) . 30
4.16.1 Initial inspections . 30
4.16.2 Test conditions . 30
4.16.3 Recovery . 31
4.16.4 Final inspections and requirements . 31
4.17 Storage at high temperature . 31
4.17.1 General . 31
4.17.2 Initial inspections . 31
4.17.3 Test conditions . 31
4.17.4 Recovery . 31
4.17.5 Final inspections and requirements . 31
4.18 Storage at low temperature (if required) . 31
4.18.1 General . 31
4.18.2 Initial inspections . 31
4.18.3 Test conditions . 31
4.18.4 Recovery . 31
4.18.5 Final inspections and requirements . 31
4.19 Charge and discharge (if required) . 32
4.19.1 General . 32
4.19.2 Initial inspections . 32
4.19.3 Test conditions . 32
4.19.4 Final inspections and requirements . 32
4.20 Component solvent resistance (if required) . 32
4.21 Solvent resistance of the marking (if required) . 32
4.22 High surge current (if required) . 32
4.22.1 General . 32
4.22.2 Final inspections and requirements . 33

Table 1 – Surge voltages . 11
Table 2 – Sampling plan for qualification approval, assessment level EZ . 13
Table 3 – Test schedule for qualification approval (1 of 8) . 14
Table 4 – Lot-by-lot inspection . 23
Table 5 – Periodic inspection . 23

IEC 60384-18:2016 © IEC 2016 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 18: Sectional specification –
Fixed aluminium electrolytic surface mount capacitors
with solid (MnO ) and non-solid electrolyte
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 60384-18 has been prepared by IEC technical committee 40:
Capacitors and resistors for electronic equipment.
This third edition cancels and replaces the second edition published in 2007 and constitutes
a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Revision of the structure in accordance with ISO/IEC Directives, Part 2:2011 (sixth
edition) to the extent practicable, and harmonization between other similar kinds of
documents.
– 6 – IEC 60384-18:2016 © IEC 2016
b) In addition, Clause 4 and all the tables have been reviewed in order to prevent
duplications and contradictions.
The text of this standard is based on the following documents:
FDIS Report on voting
40/2460/FDIS 40/2466/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The list of all parts of the IEC 60384 series, 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 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.
IEC 60384-18:2016 © IEC 2016 – 7 –
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 18: Sectional specification –
Fixed aluminium electrolytic surface mount capacitors
with solid (MnO ) and non-solid electrolyte
1 General
1.1 Scope
This part of IEC 60384 applies to fixed aluminium electrolytic surface mount capacitors with
solid (MnO ) and non-solid electrolyte primarily intended for d.c. applications for use in
electronic equipment.
These capacitors are primarily intended for use in electronic equipment to be mounted
directly on substrates for hybrid circuits or to printed boards.
Capacitors for special-purpose applications may need additional requirements.
1.2 Object
The object of this standard is to prescribe preferred ratings and characteristics and to select
from IEC 60384-1:2016 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 should 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, Preferred number series for resistors and capacitors
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance
IEC 60068-2-58:2015, Environmental testing – Part 2-58: Tests – Test Td: Test methods for
solderability, resistance to dissolution of metallization and to soldering heat of surface
mounting devices (SMD)
IEC 60384-1:2016, Fixed capacitors for use in electronic equipment – Part 1: Generic
specification
IEC 60417, Graphical symbols for use on equipment
IEC 61193-2:2007, Quality assessment system – Part 2: Selection and use of sampling
plans for inspection of electronic components and packages
ISO 3, Preferred numbers – Series of preferred numbers

– 8 – IEC 60384-18:2016 © IEC 2016
1.4 Information to be given in a detail specification
1.4.1 General
Detail specifications shall be derived from the 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
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 capacitors as an aid to easy recognition and for
comparison of the capacitors 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.
The numerical values of the body shall be given as follows:
– general case: width, length and height;
– for cylindrical body: diameter and length.
The numerical values of the terminals shall be given as follows:
– for terminals: width, length and spacing.
When the configuration is other than described above, the detail specification shall state such
dimensional information as will adequately describe the capacitor.
1.4.3 Mounting
The method of mounting for tests and measurements are given in 4.3. The detail specification
shall specify the method of mounting for normal use.
1.4.4 Ratings and characteristics
1.4.4.1 General
The ratings and characteristics shall be given in accordance with the relevant clauses of this
standard, including the items as specified below.
1.4.4.2 Nominal capacitance range
See 2.2.1.
When products approved to the detail specification have different nominal capacitance
ranges, the following statement should be added:

IEC 60384-18:2016 © IEC 2016 – 9 –
"The nominal capacitance range available in each voltage range is given in the register of
approvals, available for example on the IECQ on-line certificate system website
www.iecq.org”.
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.
1.4.4.4 Soldering
The detail specification shall specify 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. Any deviations from 1.6 shall be stated in the detail specification.
1.5 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60384-1:2016, as
well as the following apply.
1.5.1
capacitance
capacitance of an equivalent circuit having capacitance and
resistance in series measured with alternating current of approximately sinusoidal waveform
at a specified frequency
1.6 Marking
1.6.1 General
See IEC 60384-1:2016, 2.4, with the following details.
1.6.2 Information for marking
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) polarity of the terminations (unless identified by the construction);
b) nominal capacitance;
c) rated voltage (d.c. voltage may be indicated by the symbol: (IEC 60417-5031:2002)
or );
d) category temperature;
e) tolerance on nominal capacitance;
f) year and month (or, year and week) of manufacture;
g) manufacturer's name and/or trade mark;
h) manufacturer's type designation;
i) reference to the detail specification.
1.6.3 Marking on capacitors
Polarity of the terminations shall be marked. Others are marked as necessary.

– 10 – IEC 60384-18:2016 © IEC 2016
Any marking shall be legible and not easily smeared or removed by rubbing with the finger.
1.6.4 Marking on packaging
The packaging containing the capacitors should be clearly marked with all the information
listed in 1.6.2 as necessary.
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 specification are classified into climatic categories according
to the general rules given in IEC 60068-1: 2013, Annex A.
The lower and upper category temperatures shall be taken from the following:
– lower category temperature: –55 °C, –40 °C, –25 °C and –10 °C;
– upper category temperature: +85 °C, +100 °C, +105 °C and +125 °C.
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 Nominal capacitance (C )
N
Preferred values of nominal capacitance are indicated in microfarad (µF).
Preferred values of nominal capacitance shall be taken from the E12 series of IEC 60063 as
follows:
1,0 – 1,2 – 1,5 – 1,8 – 2,2 – 2,7 – 3,3 – 3,9 – 4,7 – 5,6 – 6,8 – 8,2;
n
and their decimal multiples (× 10 , n: integer).
2.2.2 Tolerance on nominal capacitance
Preferred values of tolerances on nominal capacitance are:
–10 % to +10 % and –20 % to +20 %.
2.2.3 Rated voltage (U )
R
Preferred values of rated d.c. voltages taken from the R 10 and R 20 series of ISO 3 are:
– from R 10: 1,0 – 1,25 – 1,6 – 2,0 – 2,5 – 3,15 – 4,0 – 5,0 – 6,3 – 8,0;
– from R 20: 3,5 – 4,5;
n
– and their decimal multiples (× 10 , n: integer).
2.2.4 Category voltage (U )
C
The category voltage is equal to the rated voltage.
___________
ISO 3 indicates the value 3,55 for R 20.

IEC 60384-18:2016 © IEC 2016 – 11 –
2.2.5 Surge voltage
The surge voltage shall be 1,15 times the rated voltage, rounded off to the nearest volt given
in Table 1.
Table 1 – Surge voltages
Dimensions in volt
Rated voltage
2,5 4,0 6,3 10 12,5 16 20 25 35 40 50 63 80
Surge voltage
2,9 4,6 7,2 12 14,4 18 23 29 40 46 58 72 92

2.2.6 Rated temperature
The value of the rated temperature is +85 °C, +100 °C, +105 °C or +125 °C.
3 Quality assessment procedures
3.1 Primary stage of manufacture
For capacitors with solid electrolyte, the primary stage of manufacture is the formation of the
anode body.
For capacitors with non-solid electrolyte, the primary stage of manufacture is the capacitor
manufacturer's evaluation of the formed anode foil.
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 60384-1:2016, Q.1.5 shall be made available when
prescribed in the detail specification and when requested by a purchaser. After the
endurance test, the required parameters are the capacitance change, tangent of loss angle
and leakage current.
3.4 Qualification approval procedures
3.4.1 General
The procedures for qualification approval testing are given in IEC 60384-1:2016, Clause Q.2.
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 60384-1:2016, Q.2.4. The sample shall
be representative of the range of capacitors for which approval is sought. The sample may be
the whole or part of the range given in the detail specification.
The sample shall consist of four specimens having the maximum and minimum voltages and,
for these voltages, the maximum and minimum case size. When there are more than four
case sizes, an intermediate case size shall also be tested. In each of these case size/voltage

– 12 – IEC 60384-18:2016 © IEC 2016
combinations (values), the maximum capacitance shall be chosen. Thus, for the approval of a
range, testing is required of either four or six values. When the range consists of less than
four values, the number of specimens to be tested shall be that required for four values.
Two (for 6 values) or three (for 4 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.
Table 2 gives the number of samples to be tested in each group or subgroup together with
the permissible number of non-conforming items for qualification approval tests.
3.4.3 Tests
The complete series of tests specified in Table 2 and Table 3 are required for the approval of
capacitors covered by a 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.
Specimens found to be non-conforming in the tests of Group 0 shall not be used for the other
groups.
Approval is granted when the number of non-conforming items is zero.
Table 2 and Table 3 together form the fixed sample size test schedule for the qualification
approval on the basis of the fixed sample size procedure.
Table 2 gives the number of the samples and permissible non-conforming items for each test
or test group.
Table 3 gives a summary of the test conditions and performance requirements, and choices
of the test conditions and performance requirements in the detail specification.
The test conditions and performance requirements for the qualification approval on the basis
of the fixed sample size procedure should be identical to those for quality conformance
inspection given in the detail specification.

IEC 60384-18:2016 © IEC 2016 – 13 –
Table 2 – Sampling plan for qualification approval, assessment level EZ
Permissible
Number of
number of non-
Group
specimens
Test Subclause conforming
No.
items
d
n
c
b e g
0 High surge current 4.22 112+8 +12 0
Visual examination 4.4
Dimensions 4.4
Leakage current 4.5.1
Capacitance 4.5.2
Tangent of loss angle 4.5.3
c
Impedance 4.5.4
Spare specimens
1A Resistance to soldering heat 4.6 12 0
c
Component solvent resistance 4.20
1B Solderability 4.7 12 0
c
Solvent resistance of the marking 4.21
2 Substrate bending test 4.9 12 0
a f
e
3 Mounting 4.3 0
76+8
Visual examination 4.4
Leakage current 4.5.1
Capacitance 4.5.2
Tangent of loss angle 4.5.3
c
Impedance 4.5.4
3.1 Shear test 4.8  20 0
Rapid change of temperature 4.10
Climatic sequence 4.11
3.2 Damp heat, steady state 4.12  20 0
3.3A Characteristics at high and low 4.13  8 0
temperature
c
Charge and discharge 4.19
c e
3.3B Reverse voltage 4.16  8 0
3.4 Endurance 4.15  20 0
3.5 Storage at high temperature 4.17  8 0
c
Storage at low temperature 4.18
Surge voltage 4.14
a
The value of these measurements serve as initial measurements for the tests of Group 3.
b
If required for solid electrolyte capacitors only.
c
If required.
d
For case size/ voltage combinations, see 3.4.2.
e
Additional samples for the tests of subgroup 3.3B.
f
The capacitors found non-conforming after mounting shall not be taken into account when calculating the
non-conforming items for the following tests. They shall be replaced by spare capacitors.
g
Spare specimens.
– 14 – IEC 60384-18:2016 © IEC 2016
Table 3 – Test schedule for qualification approval (1 of 8)
Number of
specimens (n) and
a
Subclause number and D or Conditions of test number of Performance
a b a
test , inspection items ND and measurements permissible non- requirements
conforming items
(c)
Group 0 ND See Table 2
c
4.22 High surge current See IEC 60384-1:2016,
4.39
4.4 Visual examination See 4.4.2 Legible marking and as
specified in the detail
specification
4.4 Dimensions See 4.4.2 See detail specification
(detail)
4.5.1 Leakage current See 4.5.1.2 Solid ele
...