IEC 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

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.

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

La CEI 60384-18:2007 s'applique aux condensateurs fixes électrolytiques à l'aluminium pour montage en surface à électrolyte solide (MnO2) destinés principalement aux applications en courant continu dans des équipements électroniques. Elle prescrit les caractéristiques et valeurs nominales préférentielles, de sélectionner, en se référant à la norme CEI 60384-1, les procédures d'assurance 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 se rapportant à cette spécification intermédiaire présentent des niveaux performances supérieurs ou égaux, parce que les niveaux de performance inférieurs ne sont pas autorisés. Cette deuxième édition annule et remplace la première édition publiée en 1993, ainsi que son Amendement 1 (1998). Cette édition constitue une révision mineure des tableaux, valeurs et références.

General Information

• Status: Published
• Publication Date: 11-Mar-2007
• ICS: 31.060.50 - Aluminium electrolytic capacitors
• Technical Committee: TC 40 - Capacitors and resistors for electronic equipment
• Drafting Committee: MT 60384-18 - TC 40/MT 60384-18
• Current Stage: DELPUB - Deleted Publication
• Start Date: 25-May-2016
• Completion Date: 26-Oct-2025

Relations

• Revises: IEC 60384-18:1993/AMD1:1998 - Amendment 1 - Fixed capacitors for use in electronic equipment - Part 18: Sectional specification: Fixed aluminium electrolytic chip capacitors with solid and non-solid electrolyte
• Effective Date: 05-Sep-2023
• Revised: IEC 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
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 60384-18
QC 302300
Second edition
2007-03
Fixed capacitors for use in electronic equipment –
Part 18:
Sectional specification –
Fixed aluminium electrolytic surface
mount capacitors with solid (MnO )
and non-solid electrolyte
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

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edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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INTERNATIONAL IEC
STANDARD 60384-18
QC 302300
Second edition
2007-03
Fixed capacitors for use in electronic equipment –
Part 18:
Sectional specification –
Fixed aluminium electrolytic surface
mount capacitors with solid (MnO )
and non-solid electrolyte
© IEC 2007 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale U
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 60384-18 © IEC:2007(E)
CONTENTS
FOREWORD.4

General .6
1.1 Scope.6

1.2 Object .6

1.3 Normative references .6

1.4 Information to be given in a detail specification .7

1.5 Terms and definitions .8
1.6 Marking .8
2 Preferred ratings and characteristics.9
2.1 Preferred characteristics.9
2.2 Preferred values of ratings.9
3 Quality assessment procedures .10
3.1 Primary stage of manufacture .10
3.2 Structurally similar components .10
3.3 Certified records of released lots .10
3.4 Qualification approval procedures .10
3.5 Quality Conformance Inspection .21
4 Test and measurement procedures .23
4.1 Drying.23
4.2 Measuring conditions .23
4.3 Mounting .23
4.4 Visual examination and check of dimensions.23
4.5 Electrical tests .23
4.6 Resistance to soldering heat.25
4.7 Solderability.25
4.8 Shear test.25
4.9 Substrate bending test.25
4.10 Rapid change of temperature.26
4.11 Climatic sequence .26
4.12 Damp heat, steady state .26
4.13 Characteristics at high and low temperature.27

4.14 Surge .27
4.15 Endurance.27
4.16 Reverse voltage (if required by the detail specification) .28
4.17 Storage at high temperature .28
4.18 Storage at low temperature (for non-solid electrolyte capacitors only).29
4.19 Charge and discharge (if required by the detail specification) .29
4.20 Component solvent resistance (if applicable) .29
4.21 Solvent resistance of the marking (if applicable).29
4.22 High surge current (for solid electrolyte capacitors only and if required by the
detail specification).30

60384-18 © IEC:2007(E) – 3 –
Table 1 – Category voltages .10

Table 2 – Sampling plan for qualification approval, assessment level EZ.12

Table 3 – Test schedule for qualification approval .13

Table 4 – Lot-by-lot inspection.22

Table 5 – Periodic inspection.22

– 4 – 60384-18 © IEC:2007(E)
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,
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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
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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
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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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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
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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 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.
The text of this standard is based on the following documents:
CDV Report on voting
40/1764/CDV 40/1822/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.

60384-18 © IEC:2007(E) – 5 –
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

The QC number that appears on the front cover of this publication is the specification number

in the IEC Quality Assessment System for Electronic Components (IECQ).

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

maintenance result 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.
A bilingual version of this publication may be issued at a later date.

– 6 – 60384-18 © IEC:2007(E)
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.
1.2 Object
The object of this standard is to prescribe 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.
1.3 Normative references
The following referenced documents are indispensable for the application of this document. 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, Environmental testing – Part 1: General and guidance
IEC 60068-2-58:2004, 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 60384-1:1999, Fixed capacitors for use in electronic equipment – Part 1: Generic

specification
IEC 60384-18-1, Fixed capacitors for use in electronic equipment – Part 18-1: Blank detail
specification – Fixed aluminium electrolytic chip capacitors with solid (MnO2) electrolyte -
Assessment level EZ
IEC 60384-18-2, Fixed capacitors for use in electronic equipment – Part 18-2: Blank detail
specification – Fixed aluminium electrolytic chip capacitors with non-solid electrolyte -
Assessment level EZ
IEC 60410, Sampling plans and procedures for inspection by attributes
ISO 3, Preferred numbers – Series of preferred numbers

60384-18 © IEC:2007(E) – 7 –
1.4 Information to be given in a detail specification

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 listed in

1.9 of the detail specification and indicated in the test schedules, for example, by an asterisk.

NOTE The information given in 1.4.1 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.

1.4.1 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 capacitor. When the capacitor is not
designed for use on printed boards, this shall be clearly stated in the detail specification.
1.4.2 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 capacitors shall be
mounted by their normal means. 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 bump or shock
tests.
1.4.3 Ratings and characteristics
The ratings and characteristics shall be in accordance with the relevant clauses of this

specification, together with the following.
1.4.3.1 Rated capacitance range
See 2.2.1.
NOTE When products approved to the detail specification have different ranges, the following statement should be
added: "The range of values available in each voltage range is given in IEC QC 001005.".
1.4.3.2 Particular characteristics
Additional characteristics may be listed when they are considered necessary to specify
adequately the component for design and application purposes.

– 8 – 60384-18 © IEC:2007(E)
1.4.3.3 Soldering
The detail specification shall prescribe the test methods, severities and requirements

applicable for the solderability and the resistance to soldering heat test.

1.4.4 Marking
The detail specification shall specify the content of the marking on the capacitor and on the
package. Deviations in 1.6 of this sectional specification shall be specifically stated.

1.5 Terms and definitions
For the purposes of this document, the following terms and definitions, as well as those given
in IEC 60384-1, apply.
1.5.1
capacitance of an electrolytic capacitor
capacitance of an equivalent circuit having capacitance and resistance in series measured with
alternating current approximately sinusoidal waveform at a specified frequency
1.5.2
surface mount capacitor
capacitor whose small dimensions or nature or shape of terminations make it suitable for
surface mounting in hybrid circuits and printed boards.
1.5.3
reverse voltage (for polar capacitors only)
voltage applied to the capacitor terminals in the reverse polarity direction
1.6 Marking
According to 2.4 of IEC 60384-1, with the following details:
1.6.1 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) polarity of the terminations (unless identified by the construction)
b) rated capacitance;
c) rated voltage (d.c. voltage may be indicated by the symbol:      or     );
d) tolerance on rated capacitance;
e) reference to the grade (in accordance with 1.1).

f) year and month (or week) of manufacture;
g) manufacturer's name or trade mark;
h) climatic category;
i) manufacturer's type designation;
j) reference to the detail specification.
1.6.2 Surface mount capacitors are generally not marked on the body. If some marking can
be applied, they shall be clearly marked with as many as possible of the remaining items as is
considered useful. Any duplication of information in the marking on the capacitor should be
avoided.
1.6.3 Any marking shall be legible and not easily smeared or removed by rubbing with the
finger.
60384-18 © IEC:2007(E) – 9 –
1.6.4 The package containing the capacitor(s) shall be clearly marked with all the information

listed in 1.6.1, except polarity, unless this is applicable to the method of packing.

1.6.5 Any additional marking shall be so applied that no confusion can arise.

2 Preferred ratings and characteristics

2.1 Preferred characteristics
The values given in detail specifications shall preferably be selected from the following.

2.1.1 Preferred climatic categories
The capacitors covered by this specification are classified into climatic categories according to
the general rules given in IEC 60068-1.
The lower and upper category temperature and the duration of the damp-heat, steady-state test
shall be chosen 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.
Duration of the damp-heat, steady-state test: 10, 21 and 56 days.
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 capacitance (C )
R
Preferred values of rated capacitance are chosen from the E6 series of IEC 60063 and their
decimal multiples.
2.2.2 Tolerance on rated capacitance
Preferred values of tolerances on rated capacitance are:
–10 / +10 % and –20 / +20 %
2.2.3 Rated voltage (U )
R
Preferred values of rated direct voltages taken from the R5 series of ISO 3 are:
1,0 V, 1,6 V, 2,5 V, 4,0 V, 6,3 V and their decimal multiples
If other values are required, they shall preferably be chosen from the R10 series.
Also 35 V is preferred.
2.2.4 Category voltage (U )
C
For capacitors having an upper category temperature of 125 °C, category voltages are given in
Table 1.
– 10 – 60384-18 © IEC:2007(E)
Table 1 – Category voltages
U
R
2,5 4 6,3 10 16 25 40 63
(V)
U
C
1,6 2,5 4 6,3 10 16 25 40
(V)
2.2.5 Surge voltage
The surge voltage shall be 1,15 times the rated or category voltage, rounded off to the nearest

volt.
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 etching or
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 records of released lots
The information required in 3.9 of IEC 60384-1 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 leakage current.
3.4 Qualification approval procedures

The procedures for qualification approval testing are given in 3.5 of the generic specification,
IEC 60384-1.
The schedule to be used for qualification approval testing on the basis of lot-by-lot and periodic
tests is given in 3.5 of this specification. The procedure using a fixed sample size schedule is
given in 3.4.1 and 3.4.2 below.
3.4.1 Qualification approval on the basis of the fixed sample size procedure
Sampling
The fixed sample size procedure is described in 3.5.3b) of IEC 60384-1. 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.

60384-18 © IEC:2007(E) – 11 –
The sample shall consist of specimens having the lowest and highest voltages and for these

voltages the smallest and largest 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 combinations

(values), the highest 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.

Spare specimens are permitted as follows:

a) one per value which may be used to replace the permitted nonconforming item in Group 0;

b) one per value which may be used as replacements for specimens which are nonconforming

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.
3.4.2 Tests
The complete series of tests specified in Tables 2 and 3 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.
Specimens found to be nonconforming during the tests of Group 0 shall not be used for the
other groups.
"One nonconforming item" is counted when a capacitor has not satisfied the whole or part of
the tests of a group.
The approval is granted when the number of nonconforming items does not exceed the
specified number of permissible nonconforming items for each group or subgroup and the total
number of permissible nonconforming items.

NOTE Tables 2 and 3 together form the fixed sample size test schedule, for which Table 2 includes the details for
the sampling and permissible nonconforming items for the different tests or groups of tests, whereas Table 3,
together with the details of tests 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 is
made in the detail specification.
The conditions of test and performance requirements for the fixed sample size test schedule should be identical to
those prescribed in the detail specification for quality conformance inspection.

– 12 – 60384-18 © IEC:2007(E)
Table 2 – Sampling plan for qualification approval, assessment level EZ

Number of
Permissible
Group specimens
Subclause of this number of non-

Test
publication conforming items
No.
d
c
n
b
0 High surge current 4.22 112+8 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 16
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 e
3 Mounting 4.3 84 0
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 temperature 4.13 8 0
c
Charge and discharge 4.19
c
3.3B Reverse voltage 4.16 8 0
3.4 Endurance 4.15 20 0
3.5 Storage at high temperature 4.17 8

c
Storage at low temperature 4.18
Surge 4.14
a
The value of these measurements serve as initial measurements for the tests of subgroups 3.
b
For solid electrolyte capacitors only, if prescribed by the detail specification.
c
If required by the detail specification.
d
For case size/ voltage combinations, see 3.4.1
e
The capacitors found nonconforming after mounting shall not be taken into account when calculating the nonconforming
items for the following tests. They shall be replaced by spare capacitors.

60384-18 © IEC:2007(E) – 13 –
Table 3 – Test schedule for qualification approval

Number of
specimens (n) and
Subclause number and D or number of Performance
a
Conditions of test
a b a
test ND permissible non- requirements
conforming items
(c)
Group 0 ND See Table 2
c
4.21 High surge current
4.4 Visual examination  As in 4.4.2

Legible marking and as
specified in the detail
specification
4.4 Dimensions   See detail specification
(detail)
4.5.1 Leakage current Protective resistance: As in 4.5.1.2
1 000 Ω
4.5.2 Capacitance Frequency:. Hz Within specified tolerance
4.5.3 Tangent of loss angle Frequency:. Hz As in 4.5.3.2
4.5.4 Impedance Frequency: 10
...

IEC 60384-18
Edition 2.0 2007-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
QC 302300
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
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IEC 60384-18
Edition 2.0 2007-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
QC 302300
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
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 31.060.50 ISBN 2-8318-9860-9
– 2 – 60384-18 © IEC:2007
CONTENTS
FOREWORD.4
1 General .6
1.1 Scope.6
1.2 Object .6
1.3 Normative references .6
1.4 Information to be given in a detail specification .7
1.5 Terms and definitions .8
1.6 Marking .8
2 Preferred ratings and characteristics.9
2.1 Preferred characteristics.9
2.2 Preferred values of ratings.9
3 Quality assessment procedures .10
3.1 Primary stage of manufacture .10
3.2 Structurally similar components .10
3.3 Certified records of released lots .10
3.4 Qualification approval procedures .10
3.5 Quality Conformance Inspection .21
4 Test and measurement procedures .23
4.1 Drying.23
4.2 Measuring conditions .23
4.3 Mounting .23
4.4 Visual examination and check of dimensions.23
4.5 Electrical tests .23
4.6 Resistance to soldering heat.25
4.7 Solderability.25
4.8 Shear test.25
4.9 Substrate bending test.25
4.10 Rapid change of temperature.26
4.11 Climatic sequence .26
4.12 Damp heat, steady state .26
4.13 Characteristics at high and low temperature.27
4.14 Surge .27
4.15 Endurance.27
4.16 Reverse voltage (if required by the detail specification) .28
4.17 Storage at high temperature .28
4.18 Storage at low temperature (for non-solid electrolyte capacitors only).29
4.19 Charge and discharge (if required by the detail specification) .29
4.20 Component solvent resistance (if applicable) .29
4.21 Solvent resistance of the marking (if applicable).29
4.22 High surge current (for solid electrolyte capacitors only and if required by the
detail specification).30

60384-18 © IEC:2007 – 3 –
Table 1 – Category voltages .10
Table 2 – Sampling plan for qualification approval, assessment level EZ.12
Table 3 – Test schedule for qualification approval .13
Table 4 – Lot-by-lot inspection.22
Table 5 – Periodic inspection.22

– 4 – 60384-18 © IEC:2007
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 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.
This bilingual version, published in 2008-07, corresponds to the English version.

60384-18 © IEC:2007 – 5 –
The text of this standard is based on the following documents:
CDV Report on voting
40/1764/CDV 40/1822/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.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The QC number that appears on the front cover of this publication is the specification number
in the IEC Quality Assessment System for Electronic Components (IECQ).
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
maintenance result 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.
– 6 – 60384-18 © IEC:2007
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.
1.2 Object
The object of this standard is to prescribe 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.
1.3 Normative references
The following referenced documents are indispensable for the application of this document. 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, Environmental testing – Part 1: General and guidance
IEC 60068-2-58:2004, 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 60384-1:1999, Fixed capacitors for use in electronic equipment – Part 1: Generic
specification
IEC 60384-18-1, Fixed capacitors for use in electronic equipment – Part 18-1: Blank detail
specification – Fixed aluminium electrolytic surface mount capacitors with solid (MnO )
electrolyte – Assessment level EZ
IEC 60384-18-2, Fixed capacitors for use in electronic equipment – Part 18-2: Blank detail
specification – Fixed aluminium electrolytic surface mount capacitors with non-solid electrolyte –
Assessment level EZ
IEC 60410, Sampling plans and procedures for inspection by attributes
ISO 3, Preferred numbers – Series of preferred numbers

60384-18 © IEC:2007 – 7 –
1.4 Information to be given in a detail specification
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 listed in
1.9 of the detail specification and indicated in the test schedules, for example, by an asterisk.
NOTE The information given in 1.4.1 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.
1.4.1 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 capacitor. When the capacitor is not
designed for use on printed boards, this shall be clearly stated in the detail specification.
1.4.2 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 capacitors shall be
mounted by their normal means. 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 bump or shock
tests.
1.4.3 Ratings and characteristics
The ratings and characteristics shall be in accordance with the relevant clauses of this
specification, together with the following.
1.4.3.1 Rated capacitance range
See 2.2.1.
NOTE When products approved to the detail specification have different ranges, the following statement should be
added: "The range of values available in each voltage range is given in IECQ 001005".
1.4.3.2 Particular characteristics
Additional characteristics may be listed when they are considered necessary to specify
adequately the component for design and application purposes.

– 8 – 60384-18 © IEC:2007
1.4.3.3 Soldering
The detail specification shall prescribe the test methods, severities and requirements
applicable for the solderability and the resistance to soldering heat test.
1.4.4 Marking
The detail specification shall specify the content of the marking on the capacitor and on the
package. Deviations in 1.6 of this sectional specification shall be specifically stated.
1.5 Terms and definitions
For the purposes of this document, the following terms and definitions, as well as those given
in IEC 60384-1, apply.
1.5.1
capacitance of an electrolytic capacitor
capacitance of an equivalent circuit having capacitance and resistance in series measured with
alternating current approximately sinusoidal waveform at a specified frequency
1.5.2
surface mount capacitor
capacitor whose small dimensions or nature or shape of terminations make it suitable for
surface mounting in hybrid circuits and printed boards.
1.5.3
reverse voltage (for polar capacitors only)
voltage applied to the capacitor terminals in the reverse polarity direction
1.6 Marking
According to 2.4 of IEC 60384-1, with the following details:
1.6.1 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) polarity of the terminations (unless identified by the construction)
b) rated capacitance;
c) rated voltage (d.c. voltage may be indicated by the symbol:      or     );
d) tolerance on rated capacitance;
e) reference to the grade (in accordance with 1.1);
f) year and month (or week) of manufacture;
g) manufacturer's name or trade mark;
h) climatic category;
i) manufacturer's type designation;
j) reference to the detail specification.
1.6.2 Surface mount capacitors are generally not marked on the body. If some marking can
be applied, they shall be clearly marked with as many as possible of the remaining items as is
considered useful. Any duplication of information in the marking on the capacitor should be
avoided.
1.6.3 Any marking shall be legible and not easily smeared or removed by rubbing with the
finger.
60384-18 © IEC:2007 – 9 –
1.6.4 The package containing the capacitor(s) shall be clearly marked with all the information
listed in 1.6.1, except polarity, unless this is applicable to the method of packing.
1.6.5 Any additional marking shall be so applied that no confusion can arise.
2 Preferred ratings and characteristics
2.1 Preferred characteristics
The values given in detail specifications shall preferably be selected from the following.
2.1.1 Preferred climatic categories
The capacitors covered by this specification are classified into climatic categories according to
the general rules given in IEC 60068-1.
The lower and upper category temperature and the duration of the damp-heat, steady-state test
shall be chosen 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.
Duration of the damp-heat, steady-state test: 10, 21 and 56 days.
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 capacitance (C )
R
Preferred values of rated capacitance are chosen from the E6 series of IEC 60063 and their
decimal multiples.
2.2.2 Tolerance on rated capacitance
Preferred values of tolerances on rated capacitance are:
–10 / +10 % and –20 / +20 %
2.2.3 Rated voltage (U )
R
Preferred values of rated direct voltages taken from the R5 series of ISO 3 are:
1,0 V, 1,6 V, 2,5 V, 4,0 V, 6,3 V and their decimal multiples
If other values are required, they shall preferably be chosen from the R10 series of ISO 3.
Also 35 V is preferred.
2.2.4 Category voltage (U )
C
For capacitors having an upper category temperature of 125 °C, category voltages are given in
Table 1.
– 10 – 60384-18 © IEC:2007
Table 1 – Category voltages
U
R
2,5 4 6,3 10 16 25 40 63
(V)
U
C
1,6 2,5 4 6,3 10 16 25 40
(V)
2.2.5 Surge voltage
The surge voltage shall be 1,15 times the rated or category voltage, rounded off to the nearest
volt.
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 etching or
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 records of released lots
The information required in 3.9 of IEC 60384-1 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 leakage current.
3.4 Qualification approval procedures
The procedures for qualification approval testing are given in 3.5 of the generic specification,
IEC 60384-1.
The schedule to be used for qualification approval testing on the basis of lot-by-lot and periodic
tests is given in 3.5 of this specification. The procedure using a fixed sample size schedule is
given in 3.4.1 and 3.4.2 below.
3.4.1 Qualification approval on the basis of the fixed sample size procedure
Sampling
The fixed sample size procedure is described in 3.5.3b) of IEC 60384-1. 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.

60384-18 © IEC:2007 – 11 –
The sample shall consist of specimens having the lowest and highest voltages and for these
voltages the smallest and largest 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 combinations
(values), the highest 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.
Spare specimens are permitted as follows:
a) one per value which may be used to replace the permitted nonconforming item in Group 0;
b) one per value which may be used as replacements for specimens which are nonconforming
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.
3.4.2 Tests
The complete series of tests specified in Tables 2 and 3 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.
Specimens found to be nonconforming during the tests of Group 0 shall not be used for the
other groups.
"One nonconforming item" is counted when a capacitor has not satisfied the whole or part of
the tests of a group.
The approval is granted when the number of nonconforming items does not exceed the
specified number of permissible nonconforming items for each group or subgroup and the total
number of permissible nonconforming items.
NOTE Tables 2 and 3 together form the fixed sample size test schedule, for which Table 2 includes the details for
the sampling and permissible nonconforming items for the different tests or groups of tests, whereas Table 3,
together with the details of tests 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 is
made in the detail specification.
The conditions of test and performance requirements for the fixed sample size test schedule should be identical to
those prescribed in the detail specification for quality conformance inspection.

– 12 – 60384-18 © IEC:2007
Table 2 – Sampling plan for qualification approval, assessment level EZ
Number of
Permissible
Group specimens
Subclause of this number ofnon-
Test
publication conforming items
No.
d
c
n
b
0 High surge current 4.22 112+8 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 16
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 e
3 Mounting 4.3 84 0
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 temperature 4.13 8 0
c
Charge and discharge 4.19
c
3.3B Reverse voltage 4.16 8 0
3.4 Endurance 4.15 20 0
3.5 Storage at high temperature 4.17 8
c
Storage at low temperature 4.18
Surge 4.14
a
The value of these measurements serve as initial measurements for the tests of subgroups 3.
b
For solid electrolyte capacitors only, if prescribed by the detail specification.
c
If required by the detail specification.
d
For case size/ voltage combinations, see 3.4.1
e
The capacitors found nonconforming after mounting shall not be taken into account when calculating the nonconforming
items for the following tests. They shall be replaced by spare capacitors.

60384-18 © IEC:2007 – 13 –
Table 3 – Test schedule for qualification approval
Number of
specimens (n) and
Subclause number and D or number of Performance
a
Conditions of test
a b a
test ND permissible non- requirements
conforming items
(c)
Group 0 ND See Table 2
c
4.21 High surge current
4.4 Visual examination  As in 4.4.2
Legible marking and as
specified in the detail
specification
4.4 Dimensions   See detail specification
(detail)
4.5.1 Leakage current Protective resistance: As in 4.5.1.2
1 000 Ω
4.5.2 Capacitance Frequency:. Hz Within specified tolerance
4.5.3 Tangent of loss angle Frequency:. Hz As in 4.5.3.2
4.5.4 Impedance Frequency: 100 kHz See detail specification
(if applicable)
Group 1A D See Table 2
4.6 Resistance to Temperature profile: …
soldering heat
Recovery: 24 h ±  h
4.6.3 Final measurement Visual examination As in 4.6.3
Capacitance See detail specification
Tangent of loss angle See detail specification
4.20 Component solvent Solvent: … See detail specification
resistance Solvent temperature: …
(if applicable) Method 2
Recovery time: …
D See Table 2
Group 1B
4.7 Solderability  Test method: solder bath
or reflow
Solder composition: …
Flux type for solder bath:
non-activated or
activated
Solder bath temperature
or reflow temperature
profile: …
4.7.2 Final measurement Visual examination As in 4.7.2
4.21 Component solvent Solvent: … Legible marking
resistance of the Solvent temperature: …
d
marking Method 1
(if applicable) Rubbing material: cotton
wool
a
Subclause numbers of test and performance requirements refer to Clause 4.
b
In this table, D = destructive, ND = non-destructive.
c
For solid electrolyte capacitors only and if prescribed by the detail specification.
d
This test may be carried out on capacitors mounted on a substrate.

– 14 – 60384-18 © IEC:2007
Table 3 (continued)
Number of
specimens (n) and
D or number of Performance
a a
Subclause number and test Conditions of test
b a
ND permissible non- requirements
conforming items
(c)
Group 2 D See Table 2
4.8 Shear test Capacitance and See detail specification
impedance (with board in
bent position)
(4.35.6 of IEC 60384-1) Visual examination No visible damage and for
Final inspection non-solid electrolyte
capacitors no leakage of
electrolyte
Group 3 D See Table 2
c
4.3 Mounting Substrate material: … No visible damage and for
non-solid electrolyte
capacitors no leakage of
electrolyte
Leakage current As in 4.5.1
Capacitance ǻC/C” 5 % of the value
measured in 4.5.2
Tangent of loss angle As in 4.5.3.2
Impedance (if applicable) ” initial limit
Group 3.1 D See Table 2
4.8 Shear test Visual examination No visible damage
4.10.1 Initial measurement D Capacitance (the value
obtained in Group 3 may
be used)
4.10 Rapid change of T = Lower category
A
temperature
temperature
T = Upper category
B
temperature
Five cycles
Duration t =. min
Recovery: 16 h
4.10.3 Final measurements
Solid electrolyte:
Leakage current As in 4.5.1
Capacitance ǻC/C” 5 % of the value
measured in 4.10.1
Tangent of loss angle As in 4.5.3.2
Impedance (if applicable) As specified in the detail
specification
Non-solid electrolyte:
Visual examination No visible damage and no
leakage of electrolyte
a
Subclause numbers of test and performance requirements refer to clause 4: Test and measurement procedures.
b
In this table, D = destructive, ND = non-destructive.
c
When different substrate materials are used for the individual subgroups, the detail specification shall indicate
which substrate material is used in each subgroup.

60384-18 © IEC:2007 – 15 –
Table 3 (continued)
Number of
specimens (n) and
D or number of Performance
a a
Subclause number and test Conditions of test
b a
ND permissible non- requirements
conforming items
(c)
Group 3.1 (continued)  See Table 2
4.11 Climatic sequence
4.11.1 Initial measurement Capacitance (the value
obtained in Group 3 may
be used)
4.11.2 Dry heat Temperature: upper
category temperature
Duration: 16 h
4.11.3 Damp heat, cyclic,
Test Db, first cycle
4.11.4 Cold D Temperature: lower
category temperature
Duration: 2 h
4.11.5 Damp heat, cyclic, Recovery: 1 h to 2 h
Test Db, remaining
cycles
4.11.7 Final measurements Visual examination No visible damage and for
non-solid electrolyte
capacitors no leakage of
electrolyte
Legible marking
4.11.7 (continued) Leakage current As in 4.5.1
Capacitance ǻC/C ≤ 10 % of the value
measured in 4.11.1
Tangent of loss angle ≤ 1,2 times the initial limit
D See Table 2
Group 3.2
4.12 Damp heat, steady Recovery: 1 h. to 2 h.
state
4.12.1 Initial measurement Capacitance (the value
obtained in Group 3 may
be used)
4.12.2 Final measurements Visual examination No visible damage, and for
non-solid electrolyte
capacitor no leakage of
electrolyte
Legible marking
Leakage current As in 4.5.1
Capacitance ǻC/C for
Solid electrolyte:
≤ 10 %
Non-solid electrolyte:
≤ 20 % of value measured
in 4.12.1
Tangent of loss angle ≤ 1,2 times the initial limit
Impedance ≤ 1,2 times the limit in the
detail specification
a
Subclause numbers of test and performance requirements refer to Clause 4.
b
In this table, D = destructive, ND = non-destructive.

– 16 – 60384-18 © IEC:2007
Table 3 (continued)
Number of
specimens (n) and
D or number of Performance
a a
Subclause number and test Conditions of test
b a
ND permissible non- requirements
conforming items
(c)
Group 3.3A  See Table 2
4.13 Characteristics at The capacitors shall be
high and low measured at each
temperature temperature step
Solid electrolyte
capacitors:
Step 1: 20 °C
d
Capacitance For use as reference value
Impedance (at the same For use as reference value
frequency as Step 2)
c
Tangent of loss angle
Step 2: Lower category
temperature
c ǻC/C ≤ 20 % of value
Capacitance
measured in Step 1
Impedance  Ratio with respect to value
in Step 1: ≤ 2 times
c
Tangent of loss angle
≤ 2 times the limit of
4.5.3.2
Step 3: Upper category See Table 2
temperature
Leakage current At 125 °C (with U ):
R
≤ 15 times the limit of 4.5.1
At 125 °C (with U ):
C
≤ 8 times the limit of 4.5.1
At 105 °C (with U ):
R
≤ 12,5 times the limit of
4.5.1
At 100 °C (with U ):
R
≤ 12,5 times the limit of
4.5.1
At 85 °C (with U ):
R
≤ 10 times the limit of 4.5.1
c
Capacitance
ǻC/C ≤ 20 % of the value
measured in Step 1
c
Tangent of loss angle
≤ limit of 4.5.3.2
Non-solid electrolyte
capacitors:
Step 1: 20 °C
c
Capacitance For use as reference value
c
Tangent of loss angle
Impedance (at same For use as reference value
frequency as Step 2)
a
Subclause numbers of test and performance requirements refer to Clause 4.
b
In this table, D = destructive, ND = non-destructive.
c
If applicable.
d
This test may be carried out on capacitors mounted on a substrate.

60384-18 © IEC:2007 – 17 –
Table 3 (continued)
Number of
specimens (n) and
Subclause number and D or number of Performance
a
Conditions of test
a b a
test ND permissible non- requirements
conforming items
(c)
4.13 (continued) Step 2: Lower category
temperature
Impedance Ratio with respect to the
value in Step 1
Rated Ratio of
voltage impedance
V
U ≤6,3 ≤ 10
R
6,3 R
16 R
Step 3: Upper category
temperature
Leakage current At 125 °C: ≤ 10 times the
limit of 4.5.1
At 105 °C: ≤ 8 times the
limit of 4.5.1
At 100 °C: ≤ 8 times the
limit of 4.5.1
At 85 °C: ≤ 5 times the
limit of 4.5.1
c
Capacitance See detail specification
c
Tangent of loss angle See detail specification
Group 3.3A (continued) See Table 2
4.19 Charge and Temperature: 20 °C
discharge Number of cycles:
(if required)
U ≤ 160 V: 10
R
U > 160 V: under
R
consideration
Duration of charge: 0,5 s
Duration of discharge:
0,5 s
4.19.1 Initial Capacitance
measurement
4.19.3 Final Visual examination No visible damage and for
measurements non-solid electrolyte
capacitors no leakage of
electrolyte
Leakage current As in 4.5.1
Capacitance ǻC/C for:
Solid electrolyte:
≤ 5 %
Non-solid electrolyte:
≤ 10 % of value measured
in 4.19.1
a
Subclause numbers of test and performance requirements refer to Clause 4.
b
In this table, D = destructive, ND = non-destructive.
c
If applicable.
– 18 – 60384-18 © IEC:2007
Table 3 (continued)
Number of
specimens (n) and
Subclause number and D or number of Performance
a
Conditions of test
a b a
test ND permissible non- requirements
conforming items
(c)
Group 3.3B D See Table 2
4.16 Reverse voltage (if Duration:125 h at upper
required) category temperature with
a) for solid electrolyte
capacitors: a direct
voltage of 0,15 U in
C
reverse polarity direction or
b) for non-solid
electrolyte capacitors:
voltage 1 V d.c. in reverse
polarity direction, unless
otherwise specified in the
detail specification, followed
by 125 h at upper category
temperature with category
voltage in forward polarity
direction
4.16.1 Initial Capacitance (the value
measurement obtained in Group 3 may
be used)
4.16.3 Final Leakage current As in 4.5.1
measurements
Capacitance ǻC/C for
Solid electrolyte: ≤ 10 %
Non-solid electrolyte:
See detail specification, of
value measured in 4.16.1
Tangent of loss angle As in 4.5.3.2
Group 3.4 D See Table 2
4.15 Endurance Duration: 1 000 h
Test temperature: Upper
category temperature
Applied voltage:. V
Recovery: 1 h to 2 h.
4.15.1 Initial measurement Capacitance (the value
obtained in Group 3 may
be used)
4.15.3 Final measurements Solid electrolyte
capacitors
Visual examination No visible damage
Legible marking
Leakage current As in 4.5.1
Capacitance ǻC/C ≤ 10 % of value
measured in 4.15.1
Tangent of loss angle
≤ 1,2 times the limit
specified in 4.5.3.2
Impedance
≤ 1,2 times the limit in the
detail specification
a
Subclause numbers of test and performance requirements refer to Clause 4.
b
In this table, D = destructive, ND = non-destructive.
c
If applicable.
60384-18 © IEC:2007 – 19 –
Table 3 (continued)
Number of
specimens (n) and
D or number of Performance
a a
Subclause number and test Conditions of test
b a
ND permissible non- requirements
conforming items
(c)
4.15.3 Final measurements Non-solid electrolyte See Table 2
(continued) capacitors
Visual examination No leakage of electrolyte
or other visible damage
Legible marking
Leakage current As in 4.5.1
Capacitance ǻC/C compared to values
measured in 4.15.1:
Rated ǻC/C ( %)
voltage
V
U ≤ 6,3 + 25 to – 40
R
± 30
6,3 < U ≤ 63
R
Tangent of loss angle
≤ 2 times the limit specified
in 4.5.3.2 or ≤ 0,4,
whichever is the greater
Impedance
≤ 4 times the limit in the
detail specification
c
Group 3.5 ND See Table 2
4.17 Storage at high Temperature: upper
temperature category temperature
Duration: 96 h ± 4 h
Recovery: 16 h min.
4.17.1 Initial measurement Capacitance (the value
obtained in Group 3 may
be used)
4.17.3 Final measurements Visual examination No visible damage and for
non-solid electrolyte
capacitors no leakage of
electrolyte
Leakage current Solid electrolyte
capacitors:
As in 4.5.1
Non-solid electrolyte
capacitors:
≤ 2 times the limit of 4.5.1
Capacitance
ǻC/C for
Solid electrolyte: ≤ 5 %
Non-solid electrolyte:
≤ 10 % of value measured
in 4.17.1
a
Subclause numbers of test and performance requirements refer to Clause 4.
b
In this table, D = destructive, ND = non-destructive.
c
If applicable.
– 20 – 60384-18 © IEC:2007
Table 3 (continued)
Number of
specimens (n) and
D or number of Performance
a a
Subclause number and test Conditions of test
b a
ND permissible non- requirements
conforming items
(c)
4.17.3 Final measurem
...