IEC 60384-24:2006

INTERNATIONAL IEC
STANDARD 60384-24
First edition
2006-06
Fixed capacitors for use in electronic equipment –
Part 24:
Sectional specification –
Surface mount fixed tantalum electrolytic
capacitors with conductive polymer solid
electrolyte
Reference number
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INTERNATIONAL IEC
STANDARD 60384-24
First edition
2006-06
Fixed capacitors for use in electronic equipment –
Part 24:
Sectional specification –
Surface mount fixed tantalum electrolytic
capacitors with conductive polymer solid
electrolyte
 IEC 2006  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: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale U
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 60384-24  IEC:2006(E)
CONTENTS
FOREWORD.3

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 rating and characteristics .8
2.1 Preferred characteristics .8
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 Declaration conformity (basic requirements).10
3.4 Test schedule and requirement for initial assessment (mandatory and
optional tests) .10
3.5 Quality conformance inspection.19
4 Test and measurement procedures.20
4.1 Preliminary drying .20
4.2 Measuring conditions .21
4.3 Mounting .21
4.4 Visual examination and check of dimensions.21
4.5 Electrical tests.21
4.6 Resistance to soldering heat .22
4.7 Solderability .23
4.8 Shear test .23
4.9 Substrate bending test .23
4.10 Rapid change of temperature .23
4.11 Climatic sequence .24
4.12 Damp heat, steady state.24
4.13 Characteristics at high and low temperature .25
4.14 Surge .25
4.15 Endurance.25
4.16 Component solvent resistance (if applicable).26
4.17 Solvent resistance of marking (if applicable).26
4.18 High surge current (if applicable).26
4.19 Storage at high temperature .26

60384-24  IEC:2006(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 24: Sectional specification – Surface mount fixed tantalum
electrolytic capacitors with conductive polymer 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 60384-24 has been prepared by IEC technical committee 40:
Capacitors and resistors for electronic equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
40/1731/FDIS 40/1754/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.

– 4 – 60384-24  IEC:2006(E)
IEC 60384 consists of the following parts, under the general title Fixed capacitors for use in
electronic equipment:
Part 1: Generic specification
Part 2: Sectional specification: Fixed metallized polyethylene-terephthalate film dielectric
d.c. capacitors
Part 3: Sectional specification: Fixed tantalum chip capacitors
Part 4: Sectional specification: Aluminium electrolytic capacitors with solid and non-solid
electrolyte
Part 5: Sectional specification: Fixed mica delectric d.c. capacitors with a rated voltage
not exceeding 3 000 V – Selection of methods of test and general requirements
Part 6: Sectional specification: Fixed metallized polycarbonate film dielectric d.c.
capacitors
Part 7: Sectional specification: Fixed polystyrene film dielectric metal foil d.c. capacitors
Part 8: Sectional specification: Fixed capacitors of ceramic dielectric, Class 1
Part 9: Sectional specification: Fixed capacitors of ceramic dielectric, Class 2
Part 11: Sectional specification: Fixed polyethylene-terephthalate film dielectric metal foil
d.c. capacitors
Part 12: Sectional specification: Fixed polycarbonate film dielectric metal foil d.c.
capacitors
Part 13: Sectional specification: Fixed polypropylene film dielectric metal foil d.c.
capacitors
Part 14: Sectional specification: Fixed capacitors for electromagnetic interference
suppression and connection to the supply mains
Part 15: Sectional specification: Fixed tantalum capacitors with non-solid or solid
electrolyte
Part 16: Sectional specification: Fixed metallized polypropylene film dielectric d.c.
capacitors
Part 17: Sectional specification: Fixed metallized polypropylene film dielectric a.c. and
pulse capacitors
Part 18: Sectional specification: Fixed aluminium electrolytic chip capacitors with solid and
non-solid electrolyte
Part 19: Sectional specification: Fixed metallized polyethylene-terephthalate film dielectric
chip d.c. capacitors
Part 20: Sectional specification: Fixed metallized polyphenylene sulphide film dielectric
chip d.c. capacitors
Part 21: Sectional specification: Fixed surface mount multilayer capacitors of ceramic
dielectric, Class 1
Part 22: Sectional specification: Fixed surface mount multilayer capacitors of ceramic
dielectric, Class 2
Part 23: Sectional specification: Fixed surface mount metallized polyethylene naphthalate
film dielectric d.c. capacitors
Part 24: Sectional specification: Surface mount fixed tantalum electrolytic capacitors with
conductive polymer solid electrolyte
Part 25: Sectional specification: Surface mount fixed aluminium electrolyte capacitors with
conductive polymer solid electrolyte
All sectional specifications mentioned above do have one or more blank detail specifications
being a supplementary document, containing requirements for style, layout and minimum
content of detail specifications.

60384-24 © IEC:2006(E) – 5 –
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.
The contents of the corrigendum of October 2006 have been included in this copy.

– 6 – 60384-24 © IEC:2006(E)
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 24: Sectional specification – Surface mount fixed tantalum
electrolytic capacitors with conductive polymer solid electrolyte

1 General
1.1 Scope
This part of IEC 60384 is applicable to tantalum electrolytic capacitors with conductive
polymer solid electrolyte. These capacitors are primarily intended to be mounted direct on to
substrates for hybrid circuits or to printed boards.
Fixed tantalum electrolytic chip capacitors with solid (MnO ) are not included but are covered
by IEC 60384-3.
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 shall 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 60063:1963, Preferred number series for resistors and capacitors
Amendment 1 (1967)
Amendment 2 (1977)
IEC 60068-1: Environmental testing – Part 1: General and guidance
IEC 60068-2-14: Environmental testing – Part 2-14:Tests – Test N: Change of temperature
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 60410: Sampling plans and procedures for inspection by attributes
ISO 3:1973, Preferred numbers – Series of preferred numbers

60384-24  IEC:2006(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 surface mount capacitors as an aid to easy recognition
and for comparison of the surface mount 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.
Normally, the numerical values shall be given for the length, width and height of the body.
When necessary, for example, when a number of case sizes are covered by a detail
specification, the dimensions and their associated tolerances shall be placed in a table below
the drawing. When the configuration is other than described above, the detail specification
shall state such dimensional information as will adequately describe the capacitors.
1.4.2 Mounting
The detail specification shall give guidance on methods of mounting for normal use. Mounting
for test and measurement purposes (when required) shall be in accordance with 4.3 of this
sectional specification.
1.4.3 Rating 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 capacitance 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.
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 tests.

– 8 – 60384-24  IEC:2006(E)
1.4.4 Marking
The detail specification shall specify the content of the marking on the capacitor and on the
package. Deviations from 1.6 of this sectional specification shall be specifically stated.
1.5 Terms and definitions
For the purposes of this document, the terms and definitions of IEC 60384-1, as well as the
following, apply.
1.5.1
surface mount capacitor
capacitor whose small dimensions and nature or shape of terminations make it suitable for
surface mounting
1.6 Marking
See IEC 60384-1, 2.4, 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) year and month (or week) of manufacture;
f) manufacturer’s name or trade mark;
g) climatic category;
h) manufacturer’s type designation;
i) 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 above 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.
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
packaging.
1.6.5 Any additional marking shall be so applied that no confusion can arise.
2 Preferred rating and characteristics
2.1 Preferred characteristics
The values given in the detail specification shall preferably be selected from the following:

60384-24  IEC:2006(E) – 9 –
2.1.1 Preferred climatic categories
The surface mount 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 temperatures and the duration of the damp heat, steady state
test shall be chosen from the following:
Lower category temperature: -55 °C
Upper category temperature: +105 °C and +125 °C
Duration of the damp heat, steady state test: 21 days
The severities for the cold and dry heat tests are the lower and upper category temperatures
respectively.
The rated temperature shall be 85 °C or 105 °C for upper category temperature of 125 °C.
The rated temperature shall be 85 °C for an upper category temperature of 105 °C.
2.2 Preferred values of ratings
2.2.1 Rated capacitance (C )
R
Preferred values of rated capacitance are the values the E6 and E12 series of IEC 60063 and
n
their decimal multiples (× 10 , n: integer).
2.2.2 Tolerance on rated capacitance
Preferred values of tolerance on rated capacitance are: ±20 %.
2.2.3 Rated voltage (U )
R
The preferred values of the rated voltage are the values of the R10 series of ISO 3:
n
1,0 – 1,25 – 1,6 – 2,0 – 2,5 – 3,15 – 4,0 – 5,0 – 6,3 – 8,0 and their decimal multiples (× 10 , n:
integer).
2.2.4 Category voltage (U )
C
The category voltage for capacitors is given in Table 1.
Table 1 – Category voltages
Temperature/
Value
Voltage
T ( °C) 125 105 125
UC
T ( °C) 85 85 105
R
U (V) 1,0 × U 1,0 × U
R R R
U (V) 1,15 × U 1,15 × U
RS R R
U (V)
0,8 × U 0,9 × U
C
R R
U (V)
0,92 × U 1,03 × U
CS
R R
– 10 – 60384-24  IEC:2006(E)
2.2.5 Surge voltage (U or U )
RS CS
The surge voltage shall be 1,15 times the rated or category voltage rounded off to the nearest
volt (see Table 1).
NOTE U is the surge voltage to rated voltage;
RS
U is the the surge voltage to category voltage.
cs
2.2.6 Rated temperature
The value of the rated temperature is +85 °C and +105 °C.
3 Quality assessment procedures
3.1 Primary stage of manufacture
The primary stage of manufacture is the forming of the oxide film.
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 Declaration conformity (basic requirements)
3.4 Test schedule and requirement for initial assessment (mandatory and optional
tests)
The procedures for qualification approval testing are given in IEC 60384-1, 3.5.
The schedule to be used for qualification approval testing on the basis of lot-by-lot and
periodic tests is given in 3.5 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 procedures
The fixed sample size procedure is described in IEC 60410. 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.
For each temp
...