IEC 60512-9-5:2020

Connectors for electrical and electronic equipment - Tests and measurements - Part 9-5: Endurance tests - Test 9e: Current loading, cyclic

IEC 60512-9-5:2020 when required by the detail product specification, is used for testing connectors or solderless connections within the scope of technical committee 48. It may also be used for similar devices when specified in a detail product specification. The object of this document is to detail a standard method for subjecting solderless connections to thermal stress conditioning by cyclic current loading. This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- added method B and renamed the former test method as method A, to provide an alternative with more adjustable time "ON" and "OFF" for products with larger thermal mass.
- added introduction to provide background of this revision.

Connecteurs pour équipements électriques et électroniques - Essais et mesures - Partie 9-5: Essais d'endurance - Essai 9e: Charge en courant, essai cyclique

L'IEC 60512-9-5:2020 est utilisée pour les essais des connecteurs ou des connexions sans soudure du domaine d’activité du comité d’études 48, lorsque la spécification particulière de produit l’exige. Elle peut également être utilisée pour des dispositifs similaires lorsqu’une spécification particulière de produit l'indique. L’objet du présent document est de définir une méthode normalisée pour soumettre les connexions sans soudure à une contrainte thermique appliquée au moyen d’une charge en courant de façon cyclique. Cette deuxième édition annule et remplace la première édition, parue en 2010, dont elle constitue une révision technique. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- introduction de la méthode B pour fournir une alternative avec des durées d'activation et de désactivation ajustables pour les produits de masse thermique plus élevée. L'ancienne méthode devient la méthode A.
- ajout d'une introduction pour présenter cette revision.

General Information

• Status: Published
• Publication Date: 08-Jun-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.220.01 - Electromechanical components in general
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: PPUB - Publication issued
• Start Date: 26-Jun-2020
• Completion Date: 09-Jun-2020

Relations

• Revises: IEC 60512-9-5:2010 - Connectors for electronic equipment - Tests and measurements - Part 9-5: Endurance tests - Test 9e: Current loading, cyclic
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60512-9-5 ®
Edition 2.0 2020-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Connectors for electrical and electronic equipment – Tests and measurements –
Part 9-5: Endurance tests – Test 9e: Current loading, cyclic

All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 Electropedia - www.electropedia.org
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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
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and withdrawn publications. Also known as the International Electrotechnical Vocabulary

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IEC 60512-9-5 ®
Edition 2.0 2020-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Connectors for electrical and electronic equipment – Tests and measurements –

Part 9-5: Endurance tests – Test 9e: Current loading, cyclic

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.220.01 ISBN 978-2-8322-8517-6

– 2 – IEC 60512-9-5:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope and object . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Preparations . 7
4.1 Test equipment . 7
4.2 Preparation of specimens . 7
4.3 Mounting of specimens . 7
5 Test/measuring methods . 7
5.1 Pre-conditioning . 7
5.2 Initial measurements . 7
5.3 Test . 8
5.3.1 General . 8
5.3.2 Method A . 8
5.3.3 Method B . 8
5.4 Recovery . 9
5.5 Final measurements . 9
6 Details to be specified . 10
Bibliography . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
TESTS AND MEASUREMENTS –
Part 9-5: Endurance tests – Test 9e: Current loading, cyclic

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.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 60512-9-5:2020 RLV © IEC 2020
International Standard IEC 60512-9-5 has been prepared by subcommittee 48B: Electrical
connectors, of IEC technical committee 48: Electrical connectors and mechanical structures
for electrical and electronic equipment.
This second edition cancels and replaces the first edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• added method B and renamed the former test method as method A, to provide an
alternative with more adjustable time “ON” and “OFF” for products with larger thermal
mass;
• added introduction to provide background of this revision;
The text of this International Standard is based on the following documents:
FDIS Report on voting
48B/2803/FDIS 48B/2819/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 60512 series, published under the general title Connectors for
electrical and electronic equipment – Tests and measurements, 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
The object of this document is to detail a standard method for subjecting solderless
connections to a thermal stress conditioning by cyclic current loading, in order to verify the
right combination of conductor material, termination material and tool application – if any is
required, in view of any possible creep phenomena that might lead to a reduction of
performance of the solderless connection.
Although requiring electric power to apply the specified current loading, this test is an
endurance test by thermal conditioning, whose aim is to submit specimens of connectors
using solderless connections or of solderless connections to a repeated cycling between
ambient temperature (normal laboratory conditions) and the upper limiting temperature (ULT)
specified for the connector or solderless connection, either by the detail product specification
or the manufacturer specification, or by the default values provided in the relevant part of
IEC 60352 series.
The way the solderless connection under test acts is affected both by the solderless
termination design and material and the attached conductor size and material, as well as by
any tool applied to produce the connection, with all relevant settings and accessories as
specified for the particular combination of termination and conductor.
Time “ON” represents the “heating” interval necessary to reach the ULT from ambient
temperature, time “OFF” represents the “cooling” interval, necessary to cool down the
specimen to ambient temperature. The sum of these intervals represents a cycle. Due to the
various nature of a solderless connection in terms of size and thermal inertia of the
termination and of the attached conductor, the traditional method with fixed duty cycle
duration it is not always suitable.
For this reason, two methods are now provided to perform this test:
– method A is the traditional one, with time “ON” of 45 min and time “OFF” of 15 min, that
has proven suitable for small-sized solderless connections, e.g. connections employing
conductors with cross-sectional area less than or equal to 10 mm . However, even in such
cases, depending on the thermal mass of the termination or the conductor (e.g. for a
crimped connection), method B may be preferable;
– method B is with time “ON” or time “OFF” to be determined experimentally by the first test
cycle. Moreover, heating time by current load may be even abbreviated by increasing and
controlling the current load, whereas cooling may be accelerated too, by forced air cooling.
Because the number of repeated cycles is the primary factor affecting the severity of this
test, long duration times at ULT (highest temperature) and ambient temperature (lowest
temperature) may not be necessary for the purpose of this test. This method is suitable for
large-sized solderless connections, e.g. connections employing conductors with cross-
sectional area larger than 10 mm .

– 6 – IEC 60512-9-5:2020 RLV © IEC 2020
CONNECTORS
...

IEC 60512-9-5 ®
Edition 2.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electrical and electronic equipment – Tests and measurements –
Part 9-5: Endurance tests – Test 9e: Current loading, cyclic

Connecteurs pour équipements électriques et électroniques –
Essais et mesures –
Partie 9-5: Essais d'endurance – Essai 9e: Charge en courant, essai cyclique

All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
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CH-1211 Geneva 20 www.iec.ch
Switzerland
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 Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

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IEC 60512-9-5 ®
Edition 2.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electrical and electronic equipment – Tests and measurements –

Part 9-5: Endurance tests – Test 9e: Current loading, cyclic

Connecteurs pour équipements électriques et électroniques –

Essais et mesures –
Partie 9-5: Essais d'endurance – Essai 9e: Charge en courant, essai cyclique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.220.01 ISBN 978-2-8322-8414-8

– 2 – IEC 60512-9-5:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Preparations . 7
4.1 Test equipment . 7
4.2 Preparation of specimens . 7
4.3 Mounting of specimens . 7
5 Test / measuring methods . 7
5.1 Pre-conditioning . 7
5.2 Initial measurements . 7
5.3 Test . 8
5.3.1 General . 8
5.3.2 Method A . 8
5.3.3 Method B . 8
5.4 Recovery . 9
5.5 Final measurements . 9
6 Details to be specified . 10
Bibliography . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
TESTS AND MEASUREMENTS –
Part 9-5: Endurance tests – Test 9e: Current loading, cyclic

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 60512-9-5 has been prepared by subcommittee 48B: Electrical
connectors, of IEC technical committee 48: Electrical connectors and mechanical structures
for electrical and electronic equipment.
This second edition cancels and replaces the first edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• added method B and renamed the former test method as method A, to provide an
alternative with more adjustable time “ON” and “OFF” for products with larger thermal
mass;
• added introduction to provide background of this revision;

– 4 – IEC 60512-9-5:2020 © IEC 2020
The text of this International Standard is based on the following documents:
FDIS Report on voting
48B/2803/FDIS 48B/2819/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 60512 series, published under the general title Connectors for
electrical and electronic equipment – Tests and measurements, 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.
INTRODUCTION
The object of this document is to detail a standard method for subjecting solderless
connections to a thermal stress conditioning by cyclic current loading, in order to verify the
right combination of conductor material, termination material and tool application – if any is
required, in view of any possible creep phenomena that might lead to a reduction of
performance of the solderless connection.
Although requiring electric power to apply the specified current loading, this test is an
endurance test by thermal conditioning, whose aim is to submit specimens of connectors
using solderless connections or of solderless connections to a repeated cycling between
ambient temperature (normal la
...