SIST EN 62391-1:2006

Fixed electric double-layer capacitors for use in electronic equipment -- Part 1: Generic specification

This part of IEC 62391 applies to fixed electric double layer capacitors (hereafter called "capacitor(s)") mainly used in DC circuits of electronic equipment. It establishes standard terms, inspection procedures and methods of test for use in sectional and detail specifications of electronic components for quality assessment or any other purpose.

Elektrische Doppelschichtfestkondensatoren zur Verwendung in Geräten der Elektronik -- Teil 1: Fachgrundnorm

Condensateurs électriques fixes à double couche utilisés dans les équipements électroniques -- Partie 1: Spécification générique

La CEI 62391-1:2006 s'applique aux condensateurs électriques fixes à double couche (que l'on appellera ci-après "condensateurs") principalement utilisés dans des circuits à courant continu d'équipements électroniques. Elle définit les termes normalisés, les procédures d'inspection et les méthodes d'essai utilisés dans les spécifications intermédiaires et particulières des composants électroniques dans le cadre de l'assurance de qualité, ainsi qu'à d'autres fins.

Fiksni električni dvoplastni kondenzatorji za elektronsko opremo – 1. del: Rodovna specifikacija (IEC 62391-1:2006)

General Information

• Status: Withdrawn
• Publication Date: 30-Sep-2006
• Withdrawal Date: 11-Nov-2018
• ICS: 31.060.10 - Fixed capacitors
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 12-Nov-2018
• Due Date: 05-Dec-2018
• Completion Date: 12-Nov-2018
• Ref Project: EN 62391-1:2006 - Fixed electric double-layer capacitors for use in electronic equipment - Part 1: Generic specification

Relations

• Replaced By: SIST EN 62391-1:2016 - Fixed electric double-layer capacitors for use in elecric and electronic equipment - Part 1: Generic specification
• Effective Date: 28-Jan-2023
• Replaced By: SIST EN 62391-1:2016 - Fixed electric double-layer capacitors for use in elecric and electronic equipment - Part 1: Generic specification
• Effective Date: 01-Apr-2016

Standards Content (Sample)

SLOVENSKI SIST EN 62391-1:2006

STANDARD
oct 2006
Fiksni električni dvoplastni kondenzatorji za elektronsko opremo – 1. del:
Rodovna specifikacija (IEC 62391-1:2006)
Fixed electric double-layer capacitors for use in electronic equipment – Part 1:
Generic specification (IEC 62391-1:2006)
ICS 31.060.10 Referenčna številka
SIST EN 62391-1:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD
EN 62391-1

NORME EUROPÉENNE
June 2006
EUROPÄISCHE NORM

ICS 31.060.10


English version


Fixed electric double-layer capacitors
for use in electronic equipment
Part 1: Generic specification
(IEC 62391-1:2006)


Condensateurs électriques fixes  Elektrische
à double couche utilisés dans Doppelschichtfestkondensatoren zur
les équipements électroniques Verwendung in Geräten der Elektronik
Partie 1: Spécification générique Teil 1: Fachgrundnorm
(CEI 62391-1:2006) (IEC 62391-1:2006)




This European Standard was approved by CENELEC on 2006-05-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62391-1:2006 E

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EN 62391-1:2006 - 2 -

Foreword
The text of document 40/1640/FDIS, future edition 1 of IEC 62391-1, prepared by IEC TC 40, Capacitors
and resistors for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 62391-1 on 2006-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-02-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2009-05-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
.
__________
Endorsement notice
The text of the International Standard IEC 62391-1:2006 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 62391-1:2006

Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60027 Series Letter symbols to be used in electrical HD 60027 Series
technology


IEC 60050 Series International Electrotechnical Vocabulary - -
(IEV)


1) 2)
IEC 60062 (mod) - Marking codes for resistors and capacitors EN 60062 2005


1)
IEC 60063 - Preferred number series for resistors and - -
capacitors



IEC 60068-1 1988 Environmental testing -
+ corr. October 1988 Part 1: General and guidance
+ A1 1992
EN 60068-1 1994


IEC 60068-2-1 1990 Environmental testing - EN 60068-2-1 1993
+ A1 1993 Part 2: Tests - Tests A: Cold + A1 1993
+ A2 1994 + A2 1994


3)
IEC 60068-2-2 1974 Basic environmental testing procedures - EN 60068-2-2 1993
+ A1 1993 Part 2: Tests - Tests B: Dry heat + A1 1993

+ A2 1994 + A2 1994


IEC 60068-2-6 1995 Environmental testing -
+ corr. March 1995 Part 2: Tests - Test Fc: Vibration (sinusoidal) EN 60068-2-6 1995


IEC 60068-2-14 1984 Environmental testing -
+ A1 1986 Part 2: Tests - Test N: Change of temperature EN 60068-2-14 1999


IEC 60068-2-20 1979 Basic environmental testing procedures -
+ A2 1987 Part 2: Tests - Test T: Soldering HD 323.2.20 S3 1988


IEC 60068-2-21 1999 Environmental testing - EN 60068-2-21 1999
Part 2-21: Tests - Test U: Robustness of
terminations and integral mounting devices


IEC 60068-2-45 1980 Basic environmental testing procedures - EN 60068-2-45 1992
+ A1 1993 Part 2: Tests - Test Xa and guidance: + A1 1993
Immersion in cleaning solvents



1)
Undated reference.
2)
Valid edition at date of issue.
3)
EN 60068-2-2 includes supplement A to IEC 60068-2-2.

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EN 62391-1:2006 - 4 -
Publication Year Title EN/HD Year
4)
IEC 60068-2-47 1999 Environmental testing - EN 60068-2-47 1999
Part 2-47: Test methods - Mounting of + corr. June 2000
components, equipment and other articles for
vibration, impact and similar dynamic tests


IEC 60068-2-58 2004 Environmental testing - EN 60068-2-58 2004
Part 2-58: Tests - Test Td: Test methods for + corr. December 2004
solderability, resistance to dissolution of
metallization and to soldering heat of surface
mounting devices (SMD)


IEC 60068-2-78 2001 Environmental testing - EN 60068-2-78 2001
Part 2-78: Tests - Test Cab: Damp heat,
steady state


IEC 60294 1969 Measurement of the dimensions of a - -
cylindrical component having two axial
terminations


IEC 60617 data- Graphical symbols for diagrams - - -
base


IEC 60695-11-5 2004 Fire hazard testing - EN 60695-11-5 2005
Part 11-5: Test flames - Needle-flame test
method - Apparatus, confirmatory test
arrangement and guidance


IEC 60717 1981 Method for the determination of the space - -
required by capacitors and resistors with
unidirectional terminations


IEC 61760-1 1998 Surface mounting technology - EN 61760-1 1998
Part 1: Standard method for the specification
of surface mounting components (SMDs)


1)
IEC QC 001002-3 - IEC Quality Assessment System for - -
Electronic Components (IECQ) - Rules of
Procedure -
Part 3: Approval procedures


ISO 1000 1992 SI units and recommendations for the use of - -
their multiples and of certain other units




4)
EN 60068-2-47 is superseded by EN 60068-2-47:2005, which is based on IEC 60068-2-47:2005.

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INTERNATIONAL IEC


STANDARD 62391-1





First edition
2006-04


Fixed electric double-layer capacitors
for use in electronic equipment –
Part 1:
Generic specification

 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: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale V
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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– 2 – 62391-1  IEC:2006(E)
CONTENTS
FOREWORD.4

1 General .6
1.1 Scope.6
1.2 Normative references .6
2 Technical data.7
2.1 Unit and symbols.7
2.2 Terms and definitions .8
2.3 Preferred values.11
2.4 Marking .11
3 Quality assessment procedures.12
3.1 General .12
3.2 Primary stage of manufacture.12
3.3 Structurally similar components.12
3.4 Declaration of conformity.12
3.5 Test schedule and requirement for initial assessment.12
4 Tests and measurement procedures.12
4.1 General .12
4.2 Standard atmospheric conditions.12
4.3 Drying .13
4.4 Visual examination and check of dimensions.14
4.5 Capacitance .14
4.6 Internal resistance.17
4.7 Leakage current .19
4.8 Self-discharge .19
4.9 Robustness of terminations .20
4.10 Resistance to soldering heat .21
4.11 Solderability .22
4.12 Rapid change of temperature .23
4.13 Vibration.23
4.14 Damp heat, steady state.23
4.15 Endurance.23
4.16 Storage .24
4.17 Characteristics at high and low temperature .25
4.18 Component solvent resistance.25
4.19 Solvent resistance of marking.26
4.20 Passive flammability.26
4.21 Pressure relief (if applicable).27

Annex A (normative) Classification according to capacitance and internal resistance.28
Annex B (informative) Measuring method of capacitance and low resistance by low
frequency a.c. method (reference) .30

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62391-1  IEC:2006(E) – 3 –
Figure 1 − Circuit for constant current discharge method .14
Figure 2 – Voltage characteristic between capacitor terminals .15
Figure 3 − Circuit for constant resistance charging method .16
Figure 4 − Circuit for a.c. resistance method.17
Figure 5 − Voltage characteristic between capacitor terminals .18
Figure 6 − Self-discharge test diagram .19
Figure A.1 − Conceptual rendering orientated by characteristics in each classification.29
Figure B.1 − Capacitance measuring system by low frequency a.c. method .30

Table 1 – Reference test: standard atmospheric conditions .13
Table 2 – Discharge conditions .15
Table 3 − Discharge current.18
Table 4 – Tensile force .20
Table 5 – Torque .21
Table 6 – Severities and requirements .27
Table A.1 − Measurement items for electric performance.29

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– 4 – 62391-1  IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIXED ELECTRIC DOUBLE-LAYER CAPACITORS
FOR USE IN ELECTRONIC EQUIPMENT

Part 1: Generic specification


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 62391-1 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
40/1640/FDIS 40/1712/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.

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62391-1  IEC:2006(E) – 5 –
IEC 62391 consists of the following parts, under the general title Fixed electric double layer
capacitors for use in electronic equipment
Part 1: Generic specification
Part 2: Sectional specification – Electric double-layer capacitors for power application
The sectional specification mentioned above does have a blank detail specification being a
supplementary document, containing requirements for style, layout and minimum content of
detail specifications.
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 standard may be issued at a later date.

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– 6 – 62391-1  IEC:2006(E)

FIXED ELECTRIC DOUBLE-LAYER CAPACITORS
FOR USE IN ELECTRONIC EQUIPMENT

Part 1: Generic specification



1 General
1.1 Scope
This part of IEC 62391 applies to fixed electric double layer capacitors (hereafter called
“capacitor(s)”) mainly used in DC circuits of electronic equipment.
It establishes standard terms, inspection procedures and methods of test for use in sectional
and detail specifications of electronic components for quality assessment or any other
purpose.
1.2 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 60027 (all parts), Letter symbols to be used in electrical technology
IEC 60050 (all parts), International Electrotechnical Vocabulary (IEV)
IEC 60062, Marking codes for resistors and capacitors
IEC 60063, Preferred number series for resistors and capacitors
IEC 60068-1:1988, Environmental testing – Part 1: General and guidance
Amendment 1 (1992)
IEC 60068-2-1:1990, Environmental testing – Part 2: Tests – Tests A: Cold
Amendment 1 (1993)
Amendment 2 (1994)
IEC 60068-2-2:1974, Environmental testing – Part 2: Tests – Tests B: Dry Heat
Amendment 1 (1993)
Amendment 2 (1994)
IEC 60068-2-6:1995, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-14:1984, Environmental testing – Part 2: Tests – Test N: Change of temperature
Amendment 1 (1986)
IEC 60068-2-20:1979, Environmental testing – Part 2: Tests – Test T: Soldering
Amendment 2 (1987)
IEC 60068-2-21:1999, Environmental testing – Part 2-21: Tests – Test U: Robustness of
terminations and integral mounting devices

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62391-1  IEC:2006(E) – 7 –
IEC 60068-2-45:1980, Environmental testing – Part 2: Tests – Test XA and guidance:
Immersion in cleaning solvents
Amendment 1 (1993)
IEC 60068-2-47:1999, Environmental testing – Part 2-47: Test methods – Mounting of
components, equipment and other articles for vibration, impact and similar dynamic tests
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 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state.
IEC 60294:1969, Measurement of the dimensions of a cylindrical component having two axial
terminations
1
IEC 60617 (all parts) [DB] , Graphical symbols for diagrams
IEC 60695-11-5: Fire hazard testing – Part 11-5: Test flames – Needle-flame test method:
2
Apparatus, confirmatory test arrangement and guidance
IEC 60717:1981, Method for the determination of the space required by capacitors and
resistors with unidirectional terminations
IEC 61760-1:1998, Surface mounting technology – Part 1: Standard method for the
specification of surface mounting components (SMDs)
QC001002-3, Rules of procedure – Part 3: Approval procedures
ISO 1000:1992, SI units and recommendations for the use of their multiples and of certain
other units
2 Technical data
2.1 Unit and symbols
Units, graphical symbols, letter symbols and terminology shall, whenever possible, be taken
from the following publications:
– IEC 60027
– IEC 60050
– IEC 60617
– ISO 1000
When further items are required they should be derived in accordance with the principles of
the publications listed above.
___________
1
“DB” refers to the IEC on-line database.
2
To be published.

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– 8 – 62391-1  IEC:2006(E)
2.2 Terms and definitions
For the purpose of this document, the following definitions apply:
2.2.1
type
group of components having similar design features and the similarity of whose manufacturing
techniques enables them to be grouped together either for qualification approval or for quality
conformance inspection; they are generally covered by a single detail specification
NOTE Components described in several detail specifications, may, in some cases, be considered as belonging to
the same type.
2.2.2
style
subdivision of a type, generally based on dimensional factors; a style may include several
variants, generally of a mechanical order
2.2.3
grade
term to indicate an additional general characteristic concerning the intended application of the
component which may only be used in combination with one or more words (e.g. long life
grade) and not by a single letter or number
2.2.4
family (of electronic components)
group of components which predominantly displays a particular physical attribute and/or fulfils
a defined function
2.2.5
subfamily (of electronic components)
group of components within a family manufactured by similar technological methods
2.2.6
d.c. capacitor
capacitor designed essentially for application with direct voltage
NOTE A d.c. capacitor may not be suitable for use on a.c. supplies.
2.2.7
rated capacitance
C
R
designated capacitance value usually indicated on the capacitor
2.2.8
category temperature range
range of ambient temperatures for which the capacitor has been designed to operate
continuously; this is given by the lower and upper category temperature
2.2.9
lower category temperature
minimum ambient temperature for which a capacitor has been designed to operate
continuously
2.2.10
upper category temperature
maximum ambient temperature for which a capacitor has been designed to operate
continuously

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62391-1  IEC:2006(E) – 9 –
2.2.11
rated temperature
maximum ambient temperature at which the rated voltage may be continuously applied
2.2.12
rated voltage (d.c.)
U
R
maximum direct voltage or peak value of pulse voltage which may be applied continuously to
a capacitor at any temperature between the lower category temperature and the rated
temperature
2.2.13
category voltage
U
C
maximum voltage which may be applied continuously to a capacitor at its upper category
temperature
2.2.14
temperature derated voltage
maximum voltage that may be applied continuously to a capacitor when it is at any
temperature between the rated temperature and the upper category temperature
NOTE Information on the voltage/temperature dependence at temperatures between the rated temperature and
the upper category temperature should, if applicable, be given in the relevant specification.
2.2.15
surge voltage ratio
quotient of the maximum instantaneous voltage which may be applied to the terminations of
the capacitor for a specified time at any temperature within the category temperature range
and the rated voltage or the temperature derated voltage, as appropriate
NOTE The number of times per hour that this voltage may be applied should be specified.
2.2.16
rated ripple voltage
r.m.s. value of the maximum allowable alternating voltage at a specified frequency
superimposed on the d.c. voltage at which the capacitor may be operated continuously at a
specified temperature
NOTE The sum of the direct voltage and the peak value of the alternating voltage applied to the capacitor should
not exceed the rated voltage or temperature derated voltage as applicable.
2.2.17
reverse voltage (for polar capacitors only)
voltage applied to the capacitor terminations in the reverse polarity direction
2.2.18
rated ripple current
r.m.s. value of the maximum allowable alternating current of a specified frequency, at which
the capacitor may be operated continuously at a specified temperature
2.2.19
time constant
product of the internal resistance (including circuit resistance) and the capacitance, normally
expressed in seconds
2.2.20
internal resistance
expresses the resistance component in an equivalent series circuit of capacitance and
resistance of a capacitor, given in ohms (Ω)

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– 10 – 62391-1  IEC:2006(E)
2.2.21
IR drop
voltage drop between the capacitor terminals that is generated at the start of discharge and
quantified by the product of the discharge current and the internal resistance of the capacitor
2.2.22
maximum temperature of a capacitor
temperature at the hottest point of its external surface
NOTE The terminations are considered to be part of the external surface.
2.2.23
minimum temperature of a capacitor
temperature at the coldest point of the external surface
NOTE The terminations are considered to be part of the external surface.
2.2.24
minimum storage temperature
minimum ambient temperature which the capacitor should withstand in the non-operating
condition without damage
2.2.25
maximum storage temperature
maximum ambient temperature which is equal to the upper category temperature of the
capacitor
2.2.26
temperature characteristic of capacitance
maximum reversible variation of capacitance produced over a given temperature range within
the category temperature range, normally expressed as a percentage of the capacitance
related to a reference temperature of 20 °C
NOTE The term characterizing this property applies mainly to capacitors of which the variations of capacitance as
a function of temperature, linear or non-linear, cannot be expressed with precision and certainty.
2.2.27
visible damage
visible damage which reduces the usability of the capacitor for its intended purpose
2.2.28
leakage current
value of the current that flows through a capacitor after a charge for a fixed period of time,
given in amperes (A)
2.2.29
self discharge
voltage held while being left for a fixed period of time under no load after a charge for a fixed
period of time
2.2.
...