Fixed capacitors for use in electronic equipment - Part 2: Sectional specification - Fixed metallized polyethylene terephthalate film dielectric DC capacitors

IEC 60384-2:2021 applies to fixed capacitors for direct current, with metallized electrodes and polyethylene-terephthalate dielectric for use in electronic equipment.
These capacitors have a possibility of "self-healing properties" depending on conditions of use. They are primarily intended for applications where the AC component is small with respect to the rated voltage. Two performance grades of capacitors are covered: grade 1 for long-life application and grade 2 for general application.
Capacitors for electromagnetic interference suppression and surface mount fixed metallized polyethylene-terephthalate film dielectric DC capacitors are not included, but are covered by IEC 60384-14 and IEC 60384-19, respectively.
The object of this document 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 are of equal or higher performance level, because lower performance levels are not permitted.
This edition includes the following significant technical changes with respect to the previous edition:
a) revision of all parts of the document based on the ISO/IEC Directives, Part 2:2018 and harmonization with other similar kinds of documents;
b) the document structure has been organized to follow the new sectional specification structure decided by TC 40;
c) revision of tables and Clause 5 so as to prevent duplications and contradictions.

Condensateurs fixes utilisés dans les équipements électroniques - Partie 2: Spécification intermédiaire – Condensateurs fixes pour courant continu à diélectrique en film de téréphtalate de polyéthylène métallisé

L’IEC 60384-2:2021 s’applique aux condensateurs fixes pour courant continu, avec des électrodes métallisées et des diélectriques en téréphtalate de polyéthylène et utilisés dans des équipements électroniques.
Ces condensateurs ont potentiellement des “propriétés autocicatrisantes” selon les conditions d’utilisation. Ils sont principalement destinés aux applications dont la composante de courant alternatif est négligeable par rapport à la tension assignée. Deux classes de performance de condensateurs sont couvertes: la Classe 1 pour des applications longue durée et la Classe 2 pour une application courante.
Les condensateurs d’antiparasitage et les condensateurs fixes pour courant continu à diélectrique en film de téréphtalate de polyéthylène métallisé pour montage en surface n’en font pas partie, mais sont respectivement couverts par l’IEC 60384-14 et l’IEC 60384-19.
L’objet du présent document est de prescrire des valeurs assignées et des caractéristiques préférentielles et de choisir à partir de l’IEC 60384-1 les procédures d’assurance de la qualité, les essais et les méthodes de mesure appropriées, et de donner les exigences de performance générales pour ce type de condensateur. Les sévérités d’essai et les exigences prescrites dans les spécifications particulières faisant référence à la présente spécification intermédiaire sont d’un niveau supérieur ou égal à celui de la présente spécification intermédiaire, car des niveaux de performance supérieurs ne sont pas autorisés.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) révision de toutes les parties du document en s’appuyant sur les directives ISO/IEC, Partie 2:2018, et harmonisation avec d’autres types de documents similaires;
b) organisation de la structure du document afin de suivre la nouvelle structure de spécification intermédiaire décidée par le TC 40;
c) révision des tableaux et de l’Article 5 pour éviter les répétitions et les contradictions.

General Information

Status
Published
Publication Date
11-Apr-2021
Current Stage
PPUB - Publication issued
Completion Date
12-Apr-2021
Ref Project

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IEC 60384-2
Edition 5.0 2021-04
INTERNATIONAL
STANDARD
Fixed capacitors for use in electronic equipment –

Part 2: Sectional specification – Fixed metallized polyethylene-terephthalate film

dielectric DC capacitors:
IEC 60384-2:2021-04(en)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2021 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

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---------------------- Page: 2 ----------------------
IEC 60384-2
Edition 5.0 2021-04
INTERNATIONAL
STANDARD
Fixed capacitors for use in electronic equipment –

Part 2: Sectional specification – Fixed metallized polyethylene-terephthalate film

dielectric DC capacitors:
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.060.30 ISBN 978-2-8322-9654-7

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

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC 60384-2:2021 © IEC 2021
CONTENTS

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

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

4 Preferred ratings and characteristics ............................................................................... 8

4.1 Preferred characteristics ......................................................................................... 8

4.2 Preferred values of ratings ...................................................................................... 8

4.2.1 Nominal capacitance (C ) ............................................................................... 8

4.2.2 Tolerance on nominal capacitance ................................................................... 8

4.2.3 Rated voltage (U ) .......................................................................................... 9

4.2.4 Category voltage (U ) ..................................................................................... 9

4.2.5 Rated temperature ........................................................................................... 9

5 Test and measurement procedures, and performance requirements ................................ 9

5.1 Visual examination and check of dimensions .......................................................... 9

5.2 Electrical tests ........................................................................................................ 9

5.2.1 Voltage proof ................................................................................................... 9

5.2.2 Capacitance .................................................................................................. 10

5.2.3 Tangent of loss angle (tan δ) ......................................................................... 10

5.2.4 Insulation resistance ...................................................................................... 11

5.3 Robustness of terminations ................................................................................... 12

5.3.1 General ......................................................................................................... 12

5.3.2 Initial inspections ........................................................................................... 12

5.3.3 Test method .................................................................................................. 13

5.3.4 Final inspections and requirements ................................................................ 13

5.4 Resistance to soldering heat ................................................................................. 13

5.4.1 General ......................................................................................................... 13

5.4.2 Test conditions .............................................................................................. 13

5.4.3 Final inspections and requirements ................................................................ 13

5.5 Solderability .......................................................................................................... 13

5.5.1 General ......................................................................................................... 13

5.5.2 Test conditions .............................................................................................. 13

5.5.3 Final requirements ......................................................................................... 14

5.6 Rapid change of the temperature .......................................................................... 14

5.6.1 General ......................................................................................................... 14

5.6.2 Initial inspections ........................................................................................... 14

5.6.3 Test conditions .............................................................................................. 14

5.6.4 Final inspections ............................................................................................ 14

5.7 Vibration ............................................................................................................... 14

5.7.1 General ......................................................................................................... 14

5.7.2 Test conditions .............................................................................................. 14

5.7.3 Final inspections and requirements ................................................................ 14

5.8 Bump (repetitive shock) ........................................................................................ 14

5.8.1 General ......................................................................................................... 14

5.8.2 Initial inspections ........................................................................................... 14

5.8.3 Test conditions .............................................................................................. 15

---------------------- Page: 4 ----------------------
IEC 60384-2:2021 © IEC 2021 – 3 –

5.8.4 Final inspections and requirements ................................................................ 15

5.9 Shock ................................................................................................................... 15

5.9.1 General ......................................................................................................... 15

5.9.2 Initial inspections ........................................................................................... 15

5.9.3 Test conditions .............................................................................................. 15

5.9.4 Final inspections and requirements ................................................................ 15

5.10 Climatic sequence................................................................................................. 16

5.10.1 General ......................................................................................................... 16

5.10.2 Initial inspections ........................................................................................... 16

5.10.3 Dry heat ........................................................................................................ 16

5.10.4 Damp heat, cyclic, Test Db, first cycle ........................................................... 16

5.10.5 Cold............................................................................................................... 16

5.10.6 Low air pressure ............................................................................................ 16

5.10.7 Damp heat, cyclic, Test Db, remaining cycles ................................................ 16

5.11 Damp heat, steady state ....................................................................................... 17

5.11.1 General ......................................................................................................... 17

5.11.2 Initial inspections ........................................................................................... 17

5.11.3 Test conditions .............................................................................................. 17

5.11.4 Final inspections and requirements ................................................................ 17

5.12 Endurance ............................................................................................................ 17

5.12.1 General ......................................................................................................... 17

5.12.2 Initial inspections ........................................................................................... 17

5.12.3 Test conditions .............................................................................................. 17

5.12.4 Final inspections and requirements ................................................................ 17

5.13 Charge and discharge ........................................................................................... 18

5.13.1 General ......................................................................................................... 18

5.13.2 Initial inspections ........................................................................................... 18

5.13.3 Test conditions .............................................................................................. 18

5.13.4 Final inspections and requirements ................................................................ 19

5.14 Component solvent resistance .............................................................................. 19

5.15 Solvent resistance of the marking ......................................................................... 19

6 Marking ......................................................................................................................... 19

6.1 General ................................................................................................................. 19

6.2 Information for marking ......................................................................................... 19

6.3 Marking of capacitors ............................................................................................ 19

6.4 Marking of packaging ............................................................................................ 19

6.5 Additional marking ................................................................................................ 19

7 Information to be given in a detail specification .............................................................. 20

7.1 General ................................................................................................................. 20

7.2 Outline drawing and dimensions ........................................................................... 20

7.3 Mounting ............................................................................................................... 20

7.4 Rating and characteristics ..................................................................................... 20

7.4.1 General ......................................................................................................... 20

7.4.2 Particular characteristics ............................................................................... 20

7.4.3 Soldering ....................................................................................................... 20

7.5 Marking ................................................................................................................. 21

8 Quality assessment procedures ..................................................................................... 21

8.1 Primary stage of manufacture ............................................................................... 21

8.2 Structurally similar components ............................................................................ 21

---------------------- Page: 5 ----------------------
– 4 – IEC 60384-2:2021 © IEC 2021

8.3 Certified records of released lots .......................................................................... 21

8.4 Qualification approval procedures ......................................................................... 21

8.4.1 General ......................................................................................................... 21

8.4.2 Qualification approval on the basis of the fixed sample size procedures ........ 21

8.5 Quality conformance inspection ............................................................................ 28

8.5.1 Formation of inspection lots ........................................................................... 28

8.5.2 Test schedule ................................................................................................ 29

8.5.3 Delayed delivery ............................................................................................ 29

8.5.4 Assessment levels ......................................................................................... 29

Annex X (informative) Cross-references to the previous edition of this document ................. 31

Bibliography .......................................................................................................................... 32

Table 1 – Test points and voltages ....................................................................................... 10

Table 2 – Tangent of loss angle requirements ....................................................................... 11

Table 3 – Insulation resistance requirements ........................................................................ 12

Table 4 – Correction factors .................................................................................................. 12

Table 5 – Preferred severities ............................................................................................... 15

Table 6 – Test conditions ...................................................................................................... 17

Table 7 – Lead spacing and dU/dt ......................................................................................... 18

Table 8 – Sampling plan together with numbers of permissible non-conformance for

qualification approval test ..................................................................................................... 23

Table 9 – Test schedule for qualification approval (1 of 5) .................................................... 24

Table 10 – Lot-by-lot inspection ............................................................................................ 29

Table 11 – Periodic inspection .............................................................................................. 30

Table X.1 – Cross-references ............................................................................................... 31

---------------------- Page: 6 ----------------------
IEC 60384-2:2021 © IEC 2021 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –
Part 2: Sectional specification – Fixed metallized
polyethylene-terephthalate film dielectric DC capacitors
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

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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

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services carried out by independent certification bodies.

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

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

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

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

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

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

indispensable for the correct application of this publication.

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

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

International Standard IEC 60384-2 has been prepared by IEC technical committee 40:

Capacitors and resistors for electronic equipment.

This fifth edition cancels and replaces the fourth edition published in 2011. This edition

constitutes a technical revision.

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

edition:

a) revision of all parts of the document based on the ISO/IEC Directives, Part 2:2018 and

harmonization with other similar kinds of documents;

b) the document structure has been organized to follow the new sectional specification

structure decided by TC 40;

c) revision of tables and Clause 5 so as to prevent duplications and contradictions.

The text of this International Standard is based on the following documents:
---------------------- Page: 7 ----------------------
– 6 – IEC 60384-2:2021 © IEC 2021
FDIS Report on voting
40/2821/FDIS 40/2830/RVD

Full information on the voting for the approval of this International Standard can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

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 "http://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 60384-2:2021 © IEC 2021 – 7 –
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –
Part 2: Sectional specification – Fixed metallized
polyethylene-terephthalate film dielectric DC capacitors
1 Scope

This part of IEC 60384 applies to fixed capacitors for direct current, with metallized electrodes

and polyethylene-terephthalate dielectric for use in electronic equipment.

These capacitors have a possibility of "self-healing properties" depending on conditions of use.

They are primarily intended for applications where the AC component is small with respect to

the rated voltage. Two performance grades of capacitors are covered: grade 1 for long-life

application and grade 2 for general application.

Capacitors for electromagnetic interference suppression and surface mount fixed metallized

polyethylene-terephthalate film dielectric DC capacitors are not included, but are covered by

IEC 60384-14 and IEC 60384-19, respectively.

The object of this document 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 are of equal or higher performance level, because lower performance levels are

not permitted.
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 (including any

amendments) applies.
IEC 60063:2015, Preferred number series for resistors and capacitors
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance

IEC 60384-1:2016, Fixed capacitors for use in electronic equipment – Part 1: Generic

specification

IEC 61193-2:2007, Quality assessment systems – Part 2: Selection and use of sampling plans

for inspection of electronic components and packages
ISO 3:1973, Preferred numbers – Series of preferred numbers
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60384-1:2016 and

the following apply.
---------------------- Page: 9 ----------------------
– 8 – IEC 60384-2:2021 © IEC 2021

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
grade 1 capacitors

capacitors intended for long-life applications with stringent requirements for the

electrical parameters
3.2
grade 2 capacitors

capacitors for general application where the stringent requirements for

grade 1 are not necessary
3.3
rated voltage

maximum DC voltage that can be continuously applied to a capacitor at the rated temperature

4 Preferred ratings and characteristics
4.1 Preferred characteristics

Preferred climatic categories only shall be given in the preferred characteristics.

The capacitors covered by this specification are classified into climatic categories in accordance

with the general rules given in IEC 60068-1:2013, Annex A.

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, −40 °C and −25 °C
– upper category temperature: +85 °C, +100 °C, +105 °C and +125 °C
– duration of the damp heat, steady-state test: 21 days and 56 days

NOTE With continuous operation at 125 °C in excess of the endurance test time, accelerated ageing is considered

(see detail specification).

The severities for the cold and dry heat tests are the lower and upper category temperatures,

respectively.
4.2 Preferred values of ratings
4.2.1 Nominal capacitance (C )

Preferred values of nominal capacitance are values chosen from the E series of IEC 60063,

which are given in Table 1, and their decimal multiples (× 10 , where n is an integer).

4.2.2 Tolerance on nominal capacitance
The preferred tolerances on the nominal capacitance are ±5 %, ±10 % and ±20 %.
---------------------- Page: 10 ----------------------
IEC 60384-2:2021 © IEC 2021 – 9 –
4.2.3 Rated voltage (U )

The preferred values of rated voltages are: 40 V – 50 V – 63 V – 100 V – 160 V – 200 V – 250 V

– 400 V – 630 V – 1 000 V – 1 600 V. These values conform to the basic series of preferred

values R5 and R 10 given in ISO 3.

The sum of the DC voltage and the peak AC voltage applied to the capacitor shall not exceed

the rated voltage. The value of the peak AC voltage shall not exceed the following percentages

of the rated voltage at the frequencies stated and shall be not greater than 280 V:

– 50 Hz: 20 %
– 100 Hz: 15 %
– 1 000 Hz: 3 %
– 10 000 Hz: 1 %
unless otherwise specified in the detail specification.
4.2.4 Category voltage (U )

The category voltage is equal to the rated voltage for upper category temperatures up to 85 °C.

For the upper category temperature of 100 °C, the voltage is 0,8 U .
For the upper category temperature of 105 °C, the voltage is 0,75 U
For the upper category temperature of 125 °C, the voltage is 0,5 U .
4.2.5 Rated temperature
The standard value of rated temperature is 85 °C.
5 Test and measurement procedures, and performance requirements
5.1 Visual examination and check of dimensions
See IEC 60384-1:2016, 4.4.
5.2 Electrical tests
5.2.1 Voltage proof
5.2.1.1 General
See IEC 60384-1:2016, 4.6, with the details of 5.2.1.2 to 5.2.1.4.
5.2.1.2 Test circuit
Delete the capacitor C .

The product of R and the nominal capacitance (C ) of the capacitor under test (C ) shall be

1 N X
smaller than or equal to 1 s and greater than 0,01 s.
R includes the internal resistance of the power supply.
R shall limit the discharge current to a value equal to or less than 1 A.
---------------------- Page: 11 ----------------------
– 10 – IEC 60384-2:2021 © IEC 2021
5.2.1.3 Test conditions

The voltages in Table 1 shall be applied between the measuring points of IEC 60384-1:2016,

Table 3, for a period of 1 min for qualification approval testing and for a period of 1 s for the lot-

by-lot quality conformance testing.
Table 1 – Test points and voltages
Test point Test voltage
1 a) Grade 1: 1,6 U
Grade 2: 1,4 U
1 b), 1 c) 2 U with a minimum of 200 V
5.2.1.4 Requirements
See Table 9.

The occurrence of self-healing breakdowns during the application of the test voltages is allowed.

5.2.2 Capacitance
5.2.2.1 General
...

IEC 60384-2
Edition 5.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –

Part 2: Sectional specification – Fixed metallized polyethylene-terephthalate film

dielectric DC capacitors
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 2: Spécification intermédiaire – Condensateurs fixes pour courant continu
à diélectrique en film de téréphtalate de polyéthylène métallisé
IEC 60384-2:2021-04(en-fr)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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3, rue de Varembé info@iec.ch
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About the IEC

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes

International Standards for all electrical, electronic and related technologies.
About IEC publications

The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch

The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the

variety of criteria (reference number, text, technical publications previews. With a subscription you will always

committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.

and withdrawn publications.
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(IEV) online.
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IEC 60384-2
Edition 5.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –

Part 2: Sectional specification – Fixed metallized polyethylene-terephthalate film

dielectric DC capacitors
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 2: Spécification intermédiaire – Condensateurs fixes pour courant continu
à diélectrique en film de téréphtalate de polyéthylène métallisé
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.30 ISBN 978-2-8322-1030-2

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
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– 2 – IEC 60384-2:2021 © IEC 2021
CONTENTS

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

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

4 Preferred ratings and characteristics ............................................................................... 8

4.1 Preferred characteristics ......................................................................................... 8

4.2 Preferred values of ratings ...................................................................................... 8

4.2.1 Nominal capacitance (C ) ............................................................................... 8

4.2.2 Tolerance on nominal capacitance ................................................................... 8

4.2.3 Rated voltage (U ) .......................................................................................... 9

4.2.4 Category voltage (U ) ..................................................................................... 9

4.2.5 Rated temperature ........................................................................................... 9

5 Test and measurement procedures, and performance requirements ................................ 9

5.1 Visual examination and check of dimensions .......................................................... 9

5.2 Electrical tests ........................................................................................................ 9

5.2.1 Voltage proof ................................................................................................... 9

5.2.2 Capacitance .................................................................................................. 10

5.2.3 Tangent of loss angle (tan δ) ......................................................................... 10

5.2.4 Insulation resistance ...................................................................................... 11

5.3 Robustness of terminations ................................................................................... 12

5.3.1 General ......................................................................................................... 12

5.3.2 Initial inspections ........................................................................................... 12

5.3.3 Test method .................................................................................................. 13

5.3.4 Final inspections and requirements ................................................................ 13

5.4 Resistance to soldering heat ................................................................................. 13

5.4.1 General ......................................................................................................... 13

5.4.2 Test conditions .............................................................................................. 13

5.4.3 Final inspections and requirements ................................................................ 13

5.5 Solderability .......................................................................................................... 13

5.5.1 General ......................................................................................................... 13

5.5.2 Test conditions .............................................................................................. 13

5.5.3 Final requirements ......................................................................................... 14

5.6 Rapid change of the temperature .......................................................................... 14

5.6.1 General ......................................................................................................... 14

5.6.2 Initial inspections ........................................................................................... 14

5.6.3 Test conditions .............................................................................................. 14

5.6.4 Final inspections ............................................................................................ 14

5.7 Vibration ............................................................................................................... 14

5.7.1 General ......................................................................................................... 14

5.7.2 Test conditions .............................................................................................. 14

5.7.3 Final inspections and requirements ................................................................ 14

5.8 Bump (repetitive shock) ........................................................................................ 14

5.8.1 General ......................................................................................................... 14

5.8.2 Initial inspections ........................................................................................... 14

5.8.3 Test conditions .............................................................................................. 15

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IEC 60384-2:2021 © IEC 2021 – 3 –

5.8.4 Final inspections and requirements ................................................................ 15

5.9 Shock ................................................................................................................... 15

5.9.1 General ......................................................................................................... 15

5.9.2 Initial inspections ........................................................................................... 15

5.9.3 Test conditions .............................................................................................. 15

5.9.4 Final inspections and requirements ................................................................ 15

5.10 Climatic sequence................................................................................................. 16

5.10.1 General ......................................................................................................... 16

5.10.2 Initial inspections ........................................................................................... 16

5.10.3 Dry heat ........................................................................................................ 16

5.10.4 Damp heat, cyclic, Test Db, first cycle ........................................................... 16

5.10.5 Cold............................................................................................................... 16

5.10.6 Low air pressure ............................................................................................ 16

5.10.7 Damp heat, cyclic, Test Db, remaining cycles ................................................ 16

5.11 Damp heat, steady state ....................................................................................... 17

5.11.1 General ......................................................................................................... 17

5.11.2 Initial inspections ........................................................................................... 17

5.11.3 Test conditions .............................................................................................. 17

5.11.4 Final inspections and requirements ................................................................ 17

5.12 Endurance ............................................................................................................ 17

5.12.1 General ......................................................................................................... 17

5.12.2 Initial inspections ........................................................................................... 17

5.12.3 Test conditions .............................................................................................. 17

5.12.4 Final inspections and requirements ................................................................ 17

5.13 Charge and discharge ........................................................................................... 18

5.13.1 General ......................................................................................................... 18

5.13.2 Initial inspections ........................................................................................... 18

5.13.3 Test conditions .............................................................................................. 18

5.13.4 Final inspections and requirements ................................................................ 19

5.14 Component solvent resistance .............................................................................. 19

5.15 Solvent resistance of the marking ......................................................................... 19

6 Marking ......................................................................................................................... 19

6.1 General ................................................................................................................. 19

6.2 Information for marking ......................................................................................... 19

6.3 Marking of capacitors ............................................................................................ 19

6.4 Marking of packaging ............................................................................................ 19

6.5 Additional marking ................................................................................................ 19

7 Information to be given in a detail specification .............................................................. 20

7.1 General ................................................................................................................. 20

7.2 Outline drawing and dimensions ........................................................................... 20

7.3 Mounting ............................................................................................................... 20

7.4 Rating and characteristics ..................................................................................... 20

7.4.1 General ......................................................................................................... 20

7.4.2 Particular characteristics ............................................................................... 20

7.4.3 Soldering ....................................................................................................... 20

7.5 Marking ................................................................................................................. 21

8 Quality assessment procedures ..................................................................................... 21

8.1 Primary stage of manufacture ............................................................................... 21

8.2 Structurally similar components ............................................................................ 21

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– 4 – IEC 60384-2:2021 © IEC 2021

8.3 Certified records of released lots .......................................................................... 21

8.4 Qualification approval procedures ......................................................................... 21

8.4.1 General ......................................................................................................... 21

8.4.2 Qualification approval on the basis of the fixed sample size procedures ........ 21

8.5 Quality conformance inspection ............................................................................ 28

8.5.1 Formation of inspection lots ........................................................................... 28

8.5.2 Test schedule ................................................................................................ 29

8.5.3 Delayed delivery ............................................................................................ 29

8.5.4 Assessment levels ......................................................................................... 29

Annex X (informative) Cross-references to the previous edition of this document ................. 31

Bibliography .......................................................................................................................... 32

Table 1 – Test points and voltages ....................................................................................... 10

Table 2 – Tangent of loss angle requirements ....................................................................... 11

Table 3 – Insulation resistance requirements ........................................................................ 12

Table 4 – Correction factors .................................................................................................. 12

Table 5 – Preferred severities ............................................................................................... 15

Table 6 – Test conditions ...................................................................................................... 17

Table 7 – Lead spacing and dU/dt ......................................................................................... 18

Table 8 – Sampling plan together with numbers of permissible non-conformance for

qualification approval test ..................................................................................................... 23

Table 9 – Test schedule for qualification approval ................................................................. 24

Table 10 – Lot-by-lot inspection ............................................................................................ 29

Table 11 – Periodic inspection .............................................................................................. 30

Table X.1 – Cross-references ............................................................................................... 31

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IEC 60384-2:2021 © IEC 2021 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –
Part 2: Sectional specification – Fixed metallized
polyethylene-terephthalate film dielectric DC capacitors
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their

preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

may participate in this preparatory work. International, governmental and non-governmental organizations liaising

with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence between

any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

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

services carried out by independent certification bodies.

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

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

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

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

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

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

indispensable for the correct application of this publication.

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

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

International Standard IEC 60384-2 has been prepared by IEC technical committee 40:

Capacitors and resistors for electronic equipment.

This fifth edition cancels and replaces the fourth edition published in 2011. This edition

constitutes a technical revision.

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

edition:

a) revision of all parts of the document based on the ISO/IEC Directives, Part 2:2018 and

harmonization with other similar kinds of documents;

b) the document structure has been organized to follow the new sectional specification

structure decided by TC 40;

c) revision of tables and Clause 5 so as to prevent duplications and contradictions.

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– 6 – IEC 60384-2:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
40/2821/FDIS 40/2830/RVD

Full information on the voting for the approval of this International Standard can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

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 "http://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.
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IEC 60384-2:2021 © IEC 2021 – 7 –
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –
Part 2: Sectional specification – Fixed metallized
polyethylene-terephthalate film dielectric DC capacitors
1 Scope

This part of IEC 60384 applies to fixed capacitors for direct current, with metallized electrodes

and polyethylene-terephthalate dielectric for use in electronic equipment.

These capacitors have a possibility of "self-healing properties" depending on conditions of use.

They are primarily intended for applications where the AC component is small with respect to

the rated voltage. Two performance grades of capacitors are covered: grade 1 for long-life

application and grade 2 for general application.

Capacitors for electromagnetic interference suppression and surface mount fixed metallized

polyethylene-terephthalate film dielectric DC capacitors are not included, but are covered by

IEC 60384-14 and IEC 60384-19, respectively.

The object of this document 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 are of equal or higher performance level, because lower performance levels are

not permitted.
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 (including any

amendments) applies.
IEC 60063:2015, Preferred number series for resistors and capacitors
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance

IEC 60384-1:2016, Fixed capacitors for use in electronic equipment – Part 1: Generic

specification

IEC 61193-2:2007, Quality assessment systems – Part 2: Selection and use of sampling plans

for inspection of electronic components and packages
ISO 3:1973, Preferred numbers – Series of preferred numbers
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60384-1:2016 and

the following apply.
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– 8 – IEC 60384-2:2021 © IEC 2021

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
grade 1 capacitors

capacitors intended for long-life applications with stringent requirements for the

electrical parameters
3.2
grade 2 capacitors

capacitors for general application where the stringent requirements for

grade 1 are not necessary
3.3
rated voltage

maximum DC voltage that can be continuously applied to a capacitor at the rated temperature

4 Preferred ratings and characteristics
4.1 Preferred characteristics

Preferred climatic categories only shall be given in the preferred characteristics.

The capacitors covered by this specification are classified into climatic categories in accordance

with the general rules given in IEC 60068-1:2013, Annex A.

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, −40 °C and −25 °C
– upper category temperature: +85 °C, +100 °C, +105 °C and +125 °C
– duration of the damp heat, steady-state test: 21 days and 56 days

NOTE With continuous operation at 125 °C in excess of the endurance test time, accelerated ageing

...

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