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

IEC 60384-1:2021 is a generic specification and is applicable to fixed capacitors for use in 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.
This edition includes the following significant technical changes with respect to the previous edition:
a) The document has been completely restructured to comply with the ISO/IEC Directives, Part 2; a new technical categorization of test methods has been introduced and the test methods have been reorganized according to these new categories; tables, figures and references have been revised accordingly.
b) Annex X has been added for comparison with the previous edition.

Condensateurs fixes utilisés dans les équipements électroniques - Partie 1: Spécification générique

L’IEC 60384:2021 est une spécification générique qui s’applique aux condensateurs fixes utilisés dans les équipements électroniques. Elle établit des définitions, des procédures de contrôle et des méthodes d’essai normalisées à utiliser dans les spécifications intermédiaires et particulières des composants électroniques, pour les systèmes d’assurance de la qualité ou pour tout autre usage.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) le document a été entièrement restructuré pour se conformer aux Directives ISO/IEC, Partie 2; une nouvelle catégorisation des méthodes d’essai a été introduite et les méthodes d’essai ont été réorganisées selon ces nouvelles catégories; les tableaux, figures et références ont été révisés en conséquence;
b) l’Annexe X a été ajoutée à des fins de comparaison avec l’édition précédente.

General Information

Status
Published
Publication Date
15-Jul-2021
Current Stage
PPUB - Publication issued
Completion Date
16-Jul-2021
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IEC 60384-1
Edition 6.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –
Part 1: Generic specification
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 1: Spécification générique
IEC 60384-1:2021-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60384-1
Edition 6.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –
Part 1: Generic specification
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 1: Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.10 ISBN 978-2-8322-9973-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60384-1:2021 © IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms and definitions .................................................................................................... 10

4 General requirements .................................................................................................... 15

4.1 Symbols, units and abbreviated terms ................................................................... 15

4.2 Preferred values and additional technical requirements ........................................ 17

4.3 Marking ................................................................................................................. 19

5 General provisions for tests and measurement procedures ............................................ 19

5.1 General ................................................................................................................. 19

5.2 Standard atmospheric conditions .......................................................................... 20

5.3 Drying ................................................................................................................... 21

5.4 Storage ................................................................................................................. 21

5.5 Mounting (for surface mount capacitors only) ........................................................ 22

6 Electrical tests and measurements ................................................................................ 25

6.1 Insulation resistance ............................................................................................. 25

6.2 Voltage proof ........................................................................................................ 28

6.3 Capacitance .......................................................................................................... 32

6.4 Tangent of loss angle and equivalent series resistance (ESR) .............................. 32

6.5 Leakage current .................................................................................................... 33

6.6 Impedance ............................................................................................................ 34

6.7 Self-resonant frequency and inductance ............................................................... 35

6.8 Variation of capacitance with temperature ............................................................. 38

6.9 Surge .................................................................................................................... 40

6.10 High surge current test.......................................................................................... 42

6.11 Charge and discharge tests and inrush current test ............................................... 44

6.12 Dielectric absorption ............................................................................................. 45

6.13 Voltage transient overload (for aluminum electrolytic capacitors with non-

solid electrolyte) ................................................................................................... 47

7 Mechanical tests and measurements ............................................................................. 48

7.1 Visual examination and check of dimensions ........................................................ 48

7.2 Outer foil termination ............................................................................................ 49

7.3 Robustness of terminations ................................................................................... 50

7.4 Vibration ............................................................................................................... 51

7.5 Bump (repetitive shock) ........................................................................................ 52

7.6 Shock ................................................................................................................... 52

7.7 Shear test ............................................................................................................. 52

7.8 Substrate bending test .......................................................................................... 53

7.9 Container sealing .................................................................................................. 53

8 Environmental and climatic tests ................................................................................... 53

8.1 Rapid change of temperature ................................................................................ 53

8.2 Climatic sequence................................................................................................. 53

8.3 Damp heat, steady state ....................................................................................... 55

8.4 Damp heat, steady state with voltage applied (for metallized film capacitors

only) ..................................................................................................................... 55

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IEC 60384-1:2021 © IEC 2021 – 3 –

8.5 Endurance ............................................................................................................ 56

8.6 Thermal stability test ............................................................................................. 58

8.7 Characteristics at high and low temperatures ........................................................ 58

8.8 Accelerated damp heat, steady state .................................................................... 58

8.9 Accelerated damp heat, steady state (for multilayer ceramic capacitors only) ....... 59

9 Tests related to component assembly ............................................................................ 60

9.1 Resistance to soldering heat ................................................................................. 60

9.2 Solderability .......................................................................................................... 60

9.3 Whisker growth test .............................................................................................. 61

9.4 Component solvent resistance .............................................................................. 62

9.5 Solvent resistance of marking ............................................................................... 62

10 Tests related to safety ................................................................................................... 63

10.1 Passive flammability ............................................................................................. 63

10.2 Pressure relief (for aluminum electrolytic capacitors) ............................................ 63

11 Quality assessment procedures ..................................................................................... 64

Annex A (informative) Guidance on pulse testing of capacitors ............................................ 65

A.1 Overview............................................................................................................... 65

A.2 Typical capacitor pulse conditions ......................................................................... 65

A.3 Effect of inductance on pulse testing ..................................................................... 66

Annex Q (informative) Quality assessment procedures ........................................................ 67

Q.1 General ................................................................................................................. 67

Q.2 Qualification approval (QA) procedures ................................................................. 70

Q.3 Capability approval (CA) procedures ..................................................................... 71

Q.4 Technology approval (TA) procedure .................................................................... 73

Q.5 Rules for the preparation of detail specifications for capacitors and resistors

for electronic equipment for use within quality assessment systems ...................... 74

Q.6 Layout of the first page of a PCP/CQC specification ............................................. 75

Q.7 Requirements for capability approval test report ................................................... 75

Q.8 Guidance on the extension of endurance tests on fixed capacitors ........................ 76

Annex X (informative) Cross reference for references to the previous edition of this

document .............................................................................................................................. 78

Bibliography .......................................................................................................................... 80

Figure 1 – Specification system for fixed capacitors ................................................................ 8

Figure 2 – Reactive power against frequency ........................................................................ 18

Figure 3 – Relation between category temperature range and applied voltage ...................... 19

Figure 4 – Suitable substrate for mechanical tests ................................................................ 24

Figure 5 – Suitable substrate for electrical tests .................................................................... 25

Figure 6 – Voltage-proof test circuit ...................................................................................... 29

Figure 7 – Schematic diagram of the impedance measuring circuit ....................................... 34

Figure 8 – Capacitor mounting arrangement for general use ................................................. 35

Figure 9 – Capacitor mounting arrangement for printed circuit use ........................................ 36

Figure 10 – Typical diagram of an absorption oscillator-wavemeter ....................................... 37

Figure 11 – Schematic diagram of the measuring circuit ....................................................... 37

Figure 12 – Relay circuit ....................................................................................................... 41

Figure 13 – Thyristor circuit .................................................................................................. 41

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– 4 – IEC 60384-1:2021 © IEC 2021

Figure 14 – Voltage waveform across capacitor .................................................................... 42

Figure 15 – High surge current test ....................................................................................... 43

Figure 16 – Voltage and current waveform ............................................................................ 44

Figure 17 – Dielectric absorption test circuit ......................................................................... 46

Figure 18 – Voltage transient overload test circuit ................................................................. 47

Figure 19 – Voltage waveform .............................................................................................. 48

Figure 20 – Test circuit ......................................................................................................... 49

Figure 21 – Test circuit for electrolytic capacitors ................................................................. 57

Table 1 – Referee conditions ................................................................................................ 21

Table 2 – Measuring voltage of insulation resistance ............................................................ 25

Table 3 – Measuring points ................................................................................................... 28

Table 4 – Tensile force ......................................................................................................... 50

Table 5 – Torque .................................................................................................................. 51

Table 6 – Number of cycles .................................................................................................. 55

Table 7 – Severities and requirements .................................................................................. 63

Table X.1 – Reference to IEC 60384-1 for clauses/subclauses or annexes ........................... 78

Table X.2 – Reference to IEC 60384-1 for figures and tables ................................................ 79

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IEC 60384-1:2021 © IEC 2021 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED 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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

IEC 60384-1 has been prepared by IEC technical committee 40: Capacitors and resistors for

electronic equipment. It is an International Standard.

This sixth edition cancels and replaces the fifth edition published in 2016. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) The document has been completely restructured to comply with the ISO/IEC Directives,

Part 2; a new technical categorization of test methods has been introduced and the test

methods have been reorganized according to these new categories; tables, figures and

references have been revised accordingly.
b) Annex X has been added for comparison with the previous edition.
---------------------- Page: 7 ----------------------
– 6 – IEC 60384-1:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
40/2848/FDIS 40/2859/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,

available at www.iec.ch/members_experts/refdocs. The main document types developed by

IEC are described in greater detail at www.iec.ch/standardsdev/publications.

A list of all parts in the IEC 60384 series, published under the general title Fixed capacitors

for use in electronic equipment, can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 8 ----------------------
IEC 60384-1:2021 © IEC 2021 – 7 –
INTRODUCTION

The specification system for fixed capacitors for use in electronic equipment is structured in a

hierarchical system consisting of the following specification types. See Figure 1.

Generic specification

The generic specification covers all subjects mainly common to the family of fixed capacitors

for use in electronic equipment, such as terminology, methods of measurement and tests.

Where the individual subjects require the conditions or parameters for provisions specific to

the particular subfamily or type of fixed capacitor, such are required to be given by one of the

subordinate specifications.

For the scope of fixed capacitors, the numeric reference to the generic specification is

IEC 60384-1.
Sectional specification

Sectional specifications cover all subjects additional to those given in the generic

specification, which are specific to a defined subgroup of fixed capacitors. These subjects

normally are preferred values for dimensions and characteristics, additional test methods and

relevant provisions for test methods given in the generic specification, requirements for

sampling and for the preparation of specimen, recommended test severities and preferred

acceptance criteria. The sectional specification also outlines the structure and scope of the

test schedules which are to be applied in all subordinate detail specifications.

For the scope of fixed capacitors, the numeric references to the sectional specifications reach

from IEC 60384-2 for polyester film capacitors to currently IEC 60384-26 for aluminum

electrolytic capacitors with conductive polymer solid electrolyte. The variety of sectional

specifications may be adapted to the portfolio of different technologies of fixed capacitors.

Detail specification

Detail specifications give directly, or by referring to other specifications, all information

necessary to completely describe a given type and range of fixed capacitors, including

requirements of all values for dimensions and characteristics. They also give all information

required for the quality assessment of the covered type and range of fixed capacitors within a

suitable quality assessment system, including requirements for all applied test severities and

acceptance criteria, and the completed test schedules.

Detail specifications can be either specifications within the IEC system, another specification

system linked to IEC, or specified by the manufacturer or user.

For the scope of fixed capacitors, the numeric references to detail specifications are for

example IEC 60384-3-101, if related to the sectional specification IEC 60384-3 and to the

ancillary blank detail specification IEC 60384-3-1.
Blank detail specification

The hierarchical system of specifications is supplemented by one or more blank detail

specifications to a sectional specification, which are used to ensure a uniform presentation of

detail specifications.

The blank detail specifications provide the specification writer with a template on the layout to

be adopted and on the information to be given and with guidance for the preparation of detail

specifications in line with the requirements of the superior generic or sectional specifications.

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– 8 – IEC 60384-1:2021 © IEC 2021

Blank detail specifications are not considered as relevant specifications since they do not

themselves describe any particular component.

The presence of an established hierarchical specification system with blank detail

specifications permits the preparation of detail specifications even outside of the relevant IEC

technical committee.

For the scope of fixed capacitors, the numeric references to blank detail specifications are, for

example, IEC 60384-3-1, if related to the sectional specification IEC 60384-3.
Relevant specification

In this system the term "relevant specification" addresses subordinate specifications

containing specific requirements, where applicable.

Any generic or sectional specification may use abstract and universal references to

subordinate specifications of either hierarchical level by use of the expression "relevant

specification".
Key

1 Indicates the range of "Relevant specifications" to the superior generic specification, where applicable.

2 Indicates the range of "Relevant specifications" to the superior sectional specification, where applicable.

Figure 1 – Specification system for fixed capacitors
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IEC 60384-1:2021 © IEC 2021 – 9 –
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –
Part 1: Generic specification
1 Scope

This part of IEC 60384 is a generic specification and is applicable to fixed capacitors for use

in 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.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document (inclu

...

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