EN 61076-3-001:2000

SLOVENSKI STANDARD
01-september-2002
Connectors with assessed quality, for use in d.c., low frequency analogue and
digital high-speed data applications - Part 3-001: Rectangular connectors with
assessed quality - Blank detail specification (IEC 61076-3-001:1996)
Connectors for use in d.c., low-frequency analogue and digital high-speed data
applications -- Part 3-001: Rectangular connectors with assessed quality - Blank detail
specification
Steckverbinder für Gleichspannungs- und Niederfrequenzanwendungen sowie digitale
Anwendungen mit hoher Übertragungsrate -- Teil 3-001: Rechteckige Steckverbinder mit
bewerteter Qualität - Vordruck für Bauartspezifikation
Connecteurs pour applications analogiques en courant continu et basse fréquence et
pour applications numériques utilisant des débits élevés pour le transfert des données --
Partie 3-001: Connecteurs rectangulaires sous assurance de la qualité - Spécification
particulière cadre
Ta slovenski standard je istoveten z: EN 61076-3-001:2000
ICS:
31.220.10 9WLþLLQYWLþQLFHNRQHNWRUML Plug-and-socket devices.
Connectors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL IEC
STANDARD
61076-3-001
QC 480201
First edition
1999-11
Connectors for use in d.c., low-frequency
analogue and digital high-speed data applications –
Part 3-001:
Rectangular connectors with assessed quality –
Blank detail specification
Connecteurs pour applications analogiques en courant continu
et basse fréquence et pour applications numériques utilisant
des débits élevés pour le transfert des données –
Partie 3-001:
Connecteurs rectangulaires sous assurance de la qualité –
Spécification particulière cadre
 IEC 1999  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
XB
International Electrotechnical Commission
For price, see current catalogue

– 2 – 61076-3-001 © IEC:1999(E)
CONTENTS
Page
FOREWORD . 4
INTRODUCTION .5
Clause
1 General information . 7
1.1 Recommended method of mounting . 7
1.1.1 Number of contacts or contact cavities . 7
1.2 Ratings and characteristics . 7
1.3 Reference documents . 9
1.4 Marking . 9
1.5 IEC type designation . 10
1.6 Ordering information . 10
2 Technical information . 12
2.1 Definitions . 12
2.2 Survey of styles and variants . 12
2.3 Information on application . 12
2.3.1 Complete connector (pairs) . 12
2.3.2 Fixed connectors . 12
2.3.3 Free connectors . 12
2.3.4 Accessories . 14
2.3.4.1 Special contacts . 14
2.3.4.2 Coding devices . 14
2.3.4.3 Mounting devices . . 14
2.3.5 Shielding/grounding . 14
2.3.6 Basic type of terminations . 14
2.4 Contact arrangements . 14
3 Dimensional information . 16
3.1 General . 16
3.2 Isometric view and common features . 16
3.2.1 Common features . 18
3.2.2 Reference system . 18
3.2.3 Height dimensions . 18
3.2.4 Width dimensions . 18
3.2.5 Depth dimensions . 18
3.3 Engagement (mating) information . 20
3.3.1 Engaging (mating) direction . 20
3.3.1.1 Contact levels and sequencing . 20
3.3.2 Perpendicular to the engaging (mating) direction . 20
3.3.3 Inclination . 20
3.4 Fixed connectors . 20
3.4.1 Dimensions . 20
3.4.2 Terminations . 20
3.5 Free connectors . 22
3.5.1 Dimensions . 22
3.5.2 Terminations . 22
3.6 Accessories . 22

61076-3-001 © IEC:1999(E) – 3 –
Clause Page
3.7 Mounting information for fixed connectors . 22
3.7.1 Hole pattern on printed boards . 22
3.7.2 Mounting on panels . 24
3.8 Mounting information for free connectors . 24
3.9 Gauges . 24
3.9.1 Sizing gauges and retention force gauges . 24
3.9.2 Mechanical function, engaging/separating/insertion/withdrawal force gauges . 26
3.9.3 Probes . 26
3.9.4 Contact resistance gauge . 26
3.9.5 Test panel (for voltage proof test) . 26
4 Characteristics . 28
4.1 Climatic category . 28
4.2 Electrical characteristics. 28
4.2.1 Creepage and clearance distances . 28
4.2.2 Voltage proof . 28
4.2.3 Current-carrying capacity . 30
4.2.4 Contact resistance . 30
4.2.5 Insulation resistance . 30
4.3 Mechanical characteristics . 30
4.3.1 Mechanical operation . 30
4.3.2 Engaging and separating forces (or insertion and withdrawal forces) . 32
4.3.3 Contact retention in insert . 32
4.3.4 Polarizing method . 32
5 Test schedule .34
5.1 General . 34
5.1.1 Arrangement for contact resistance measurement . 34
5.1.2 Arrangement for dynamic stress tests . 34
5.1.3 Arrangement for testing static load, axial . 34
5.1.4 Wiring of specimens . 34
5.2 Test schedules . 36
5.2.1 Basic (minimum) test schedule. 36
5.2.2 Full test schedule . 38
5.2.2.1 Test group P - Preliminary . 38
5.2.2.2 Test group AP - Dynamic/climatic . 40
5.2.2.3 Test group BP - Mechanical endurance . 44
5.2.2.4 Test group CP - Moisture . 48
5.2.2.5 Test group DP - Electrical load . 48
5.2.2.6 Test group EP - Mechanical resistivity . 50
5.2.2.7 Test group FP - Chemical resistivity . 52
5.2.2.8 Test group GP - Connections . 52
5.2.2.9 Test group HP - Additional tests . 52
6 Quality assessment procedures . 54
6.1 Qualification approval testing . 54
6.1.1 Method 1 . 54
6.1.2 Method 2 . 54
6.2 Quality conformance inspection . 56
6.2.1 Lot-by-lot tests . 56
6.2.2 Periodic tests . 58
6.3 Delayed delivery, re-inspection . 60
Annex A (normative) New tests and additional test phases . 62

– 4 – 61076-3-001 © IEC:1999(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
––––––––––––
CONNECTORS FOR USE IN DC, LOW-FREQUENCY ANALOGUE
AND DIGITAL HIGH-SPEED DATA APPLICATIONS –
Part 3-001: Rectangular connectors with assessed quality –
Blank detail specification
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61076-3-001 has been prepared by subcommittee 48B: Connectors,
of IEC technical committee 48: Electromechanical components and mechanical structures for
electronic equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
48B/791/FDIS 48B/820/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
Annex A forms an integral part of this standard.
The QC number that appears on the front cover of this publication is the specification number
of the IEC Quality Assessment System for Electronic Components (IECQ).
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
The committee has decided that this publication remains valid until 2004. At this date, in
accordance with the committee’s decision, the publication will be
reconfirmed;
withdrawn;
replaced by a revised edition, or
amended.
A bilingual version of this standard may be issued at a later date.

61076-3-001 © IEC:1999(E) – 5 –
INTRODUCTION
In prior years, IEC subcommittee 48B had prepared detail specifications as part of a two-level
document system. When the IECQ system was introduced, SC 48B was urged to consider
changing to the four-level specification system as described in IEC Guide 102. This blank detail
specification is part of that four-level document system.
This blank detail specification is a supplementary document to the sectional specification
IEC 61076-3 and contains requirements for style, lay-out and minimum content of detail
specifications. It is to be used in conjunction with the following publications: IEC 61076-1 and
IEC 61076-3.
For the scope and definition of this blank detail specification, see 1.2.2 of IEC 61076-1 and 1.1
of IEC 61076-3.
Detail specifications not complying with these requirements shall not be considered as being in
accordance with the IECQ system, nor shall they be so described.
The complete requirements for the rectangular connectors described herein should correspond
to this blank detail specification and the current issues of IEC 61076-1 and IEC 61076-3.
In the preparation of detail specifications, the contents of 1.2.3 of IEC 61076-1 should be taken
into account.
– 6 – 61076-3-001 © IEC:1999(E)
Guidance notes
The following pages give a recommended layout of a detail specification. The contents of this
page give guidance on the information which should, wherever possible, be given on the front
page of a detail specification (see IEC Guide 102).
For the scope and definition of a detail specification, see 1.2.3 of IEC 61076-1.
The numbers between brackets on the front page of the detail specification correspond to the
following information.
Identification of the detail specification
[1] The International Electrotechnical Commission or the national standards organization
under whose authority the detail specification is drafted. It shall also be stated where the
detail specification may be obtained.
[2] The IECQ/IEC number of the detail specification and date of issue.
[3] The IECQ/IEC number and issue number of the generic and the sectional specifications.
[4] The national number of the detail specification, if it differs from the IECQ/IEC number.
Identification of the connector
[5] A short description of the type of connector.
[6] Information on the typical construction of the connector, for example, it should be stated
whether the connector is suitable for mounting on printed boards.
[7] Outline drawing, preferably of isometric or similar projection, from which the connector
may be clearly identified.
[8] Information on performance level(s) and assessment level(s) specified in the document.
[9] Reference data on the most important properties, to allow comparison between the
various connector types.
NOTE It may be convenient to give some of this information in tabular form.

61076-3-001 © IEC:1999(E) – 7 –
[1] IECQ/IEC
Detail specification
number
[2]
Generic specification number National number of detail
specification
Electronic components of assessed quality in accordance with: (it is not necessary to use this if the
IECQ/IEC number is identical)
[3] [4]
Outline drawing Product description
[5]
[7]
[6]
[8]
Performance level(s):
Assessment level(s):
Combination of
performance levels
and assessment
levels:
Reference data
[9]
Information on the availability of components qualified to this detail specification is given
in the qualified products lists.
1 General information
1.1 Recommended method of mounting
For guidance on the application of these connectors in mechanical structures, see annex A of
IEC 60917.
1.1.1 Number of contacts or contact cavities
1.2 Ratings and characteristics
Rated voltage Current rating at 70 °C
Insulation resistance Climatic category
Contact spacing
– 8 – 61076-3-001 © IEC:1999(E)
Guidance notes
1.3 Reference documents
It may be necessary to refer to other documents in addition to those stated, in which case the
list of related documents shall be extended beyond those referenced.
If standards are referenced which are already listed in IEC 61076-1 and IEC 61076-3, their
reference shall not be repeated in 1.5 of the detail specification.
1.4 Marking
The marking of the connector and the package shall be in accordance with 2.6 of IEC 61076-3.

61076-3-001 © IEC:1999(E) – 9 –
1.3 Reference documents
IEC 60068-2-60:1995, Environmental testing – Part 2: Tests – Test Ke: Flowing mixed gas
corrosion test
IEC 61076-3:1999, Connectors for use in d.c., low-frequency analogue and digital high speed
data applications – Part 3: Rectangular connectors with assessed quality – Sectional
specification
1.4 Marking
– 10 – 61076-3-001 © IEC:1999(E)
Guidance notes
1.5 IEC type designation
The designation shall be derived from 2.5 of IEC 61076-3.
Example:
L NN N L N L N N L
IEC 61076-3-1
Number of detail
specification
Letter (s) A A Letter denoting
.
.
denoting the G the assessment
.
connector style level
X Z
1 Number denoting
Number of contacts 001
or . 2 the performance
.
.
contact cavities level
999 3
1 Number (digit) denoting
Letter denoting F
the type of contact M 2 optional extensions to
or contact rows the termination
X
Number denoting I Letter denoting the basic
type of
the contact arrangement 1 P
(may consist of three characters) termination
9 S
1.6 Ordering information
For ordering connectors according to this detail specification, the type designation described
in 1.6 shall be used.
61076-3-001 © IEC:1999(E) – 11 –
1.5 IEC type designation
1.6 Ordering information
– 12 – 61076-3-001 © IEC:1999(E)
Guidance notes
2 Technical information
The detail specification shall contain information which contributes to a proper application of
the connectors. It will also provide specificities for a better understanding of the detail
specification.
2.1 Definitions
In addition to the terminology used in, and applicable to, the detail specification, as stated
in 2.1 of IEC 61076-3, it is recommended that those definitions which are unique to the
connectors specified be listed in the detail specification.
2.2 Survey of styles and variants
Should the detail specification be applicable to a range of styles and/or variants, a survey of
the range covered shall be included in the form of a table in the detail specification. Table 1
may be amended to include additional and/or alternative details, if this is applicable, to
describe the styles and variants.
NOTE Tables used in detail specifications are to be numbered in sequence. The numbering in this standard has
been used as an example, and therefore numbered as "x".
2.3 Information on application
If required, rules and recommendations for the use of the connectors specified in the detail
specification shall, unless sufficiently covered by dimensional information in clause 3, be listed
for
2.3.1 Complete connectors (pairs)
2.3.2 Fixed connectors
2.3.3 Free connectors
NOTE The category of free connectors includes free coupler connectors. These connectors have coupling or
latching hardware as an integral part of the connector. Information about the coupling hardware should be included,
as necessary, in clauses 2, 3, and 5.

61076-3-001 © IEC:1999(E) – 13 –
2 Technical information
2.1 Definitions
2.2 Survey of styles and variants
Table 1 – Styles and variants
Connector style Style reference letter
and
number of contacts
2.3 Information on application
2.3.1 Complete connectors (pairs)
2.3.2 Fixed connectors
2.3.3 Free connectors
– 14 – 61076-3-001 © IEC:1999(E)
Guidance notes
2.3.4 Accessories
When accessories provide an essential support to the application of the connectors, the
features and use shall be outlined in the detail specification, where applicable.
2.3.4.1 Special contacts
In case special contacts are used in conjunction with the contacts specified in the detail
specification, information on these contacts shall be presented for information only, given the
fact that no detail specification of such contacts has been published. Special contacts are
defined as usually removable contacts for high-current, high-voltage, RF, filter or FO
applications.
2.3.4.2 Coding devices
When coding devices, which are not an integral part of the connector, are used, separate
information shall be given in the detail specification.
2.3.4.3 Mounting devices
When mounting devices, which do not form an integral part of the connector, are
recommended, information on these devices shall be presented in the detail specification for
reference only.
2.3.5 Shielding/grounding
When shielding and/or grounding features, which cannot be considered as an integral part of
the connector or an accessory, are offered, information shall be given in the detail
specification.
2.3.6 Basic type of terminations
When different types of terminations are possible, information on use shall be presented in the
detail specification in tabular form.
More detailed dimensional information may be provided by those parts of the detail
specification which describe the dimensions of fixed and free board connectors.
If no significant differences occur between terminations of fixed and free connectors, the
information may be included in this clause instead.
2.4 Contact arrangements
When different mechanical contact loading per connector insert is possible and influences the
intended application of the connector, information shall be given in the detail specification,
preferably in the form of drawings or tables.
These arrangements shall be specified by the appropriate combination of the IEC type
designation specified in 1.7 of the detail specification.

61076-3-001 © IEC:1999(E) – 15 –
2.3.4 Accessories
2.3.4.1 Special contacts
2.3.4.2 Coding devices
2.3.4.3 Mounting devices
2.3.5 Shielding/grounding
2.3.6 Basic type of terminations
2.4 Contact arrangements
– 16 – 61076-3-001 © IEC:1999(E)
Guidance notes
3 Dimensional information
In order to facilitate comparison of various specifications, a uniform presentation of drawing
information is recommended in accordance with 2.7.1 of IEC 61076-1.
Drawings and dimensions shall cover
a) isometric view showing the basic design including common characteristics of related
connectors;
b) fixed connectors;
c) free connectors and/or board-edge of printed boards;
d) mating information;
e) accessories;
f) mounting information for fixed connectors;
g) mounting information for free connectors, if applicable;
h) mounting information for connectors with accessories;
i) testing gauges, probes and test panels.
3.1 General
It shall be stated in the detail specification if original dimensions are millimetres or inches.
It shall be stated in the detail specification if drawings are shown in first-angle or in third-angle
projection.
The system of lettering shall be as described by 2.7.1.1 of IEC 61076-1.
The following statement shall be included in the detail specification:
The shape of the connectors may deviate from those given in the following drawings as
long as the specified dimensions are not influenced.
Wherever practical, the same dimension letters shall be used for corresponding dimensions of
fixed and free connectors.
3.2 Isometric view and common features
An isometric view shall be included and shall show the main characteristics of the design
including common features, if applicable.
It is convenient to show the dimension reference, the dimension and the feature description in
the form of a table (see table 2).

61076-3-001 © IEC:1999(E) – 17 –
3 Dimensional information
3.1 General
The shape of the connectors may deviate from those given in the following drawings as long as
the specified dimensions are not influenced.
3.2 Isometric view and common features
Table 2 – Isometric view and common features
Reference Dimension Feature description

– 18 – 61076-3-001 © IEC:1999(E)
Guidance notes
3.2.1 Common features
A description of all the common features relating to the style of connectors covered by the
detail specification shall be included.
Data which could be specified includes
a) datum point or datum line with reference to the datum;
b) position of the mounting hole(s) of the fixed connector;
c) position of the terminations of the fixed connector;
d) position of the free or edge-socket connector;
e) position of the mounting holes of the free connector or the terminations of an edge-socket
connector;
f) position of the printed board;
g) position of the grid of the printed board.
3.2.2 Reference system
The detail specification shall state the coordination dimensions to allow for (modular)
arrangement of the connector parts. When such reference system is based on guidelines for
mechanical structures, it is recommended to refer to such information.
3.2.3 Height dimensions
When multiple connectors or connector modules are mounted onto a printed board, the height
dimension to the backplane and the datum line of a subrack shall be stated in the detail
specification.
3.2.4 Width dimensions
To show the width positioning of individual printed boards in relation to the datum line of the
backplane, which is part of a mechanical structure, such dimensions shall be stated in the
detail specification.
3.2.5 Depth dimensions
To provide essential information about the position of the edge of a printed board or the fixed
connector versus the free connector, depth dimensions shall be stated in the detail specifica-
tion.
61076-3-001 © IEC:1999(E) – 19 –
3.2.1 Common features
3.2.2 Reference system
Coordination dimensions are dimensions without tolerances which indicate the boundary or
centre-line references in order to allow for (modular) arrangement.
3.2.3 Height dimensions
3.2.4 Width dimensions
3.2.5 Depth dimensions
– 20 – 61076-3-001 © IEC:1999(E)
Guidance notes
3.3 Engagement (mating) information
Details of the limiting factors, within which correct engagement (mating) is ensured relates to
dimensional data on the following:
3.3.1 Engaging (mating) direction
The range over which the specified contact resistance is ensured in the plug-in direction.
3.3.1.1 Contact levels and sequencing
Dimensional parameters of the different contact levels and their sequence, if applicable.
3.3.2 Perpendicular to the engaging (mating) direction
The maximum allowable displacement in the perpendicular direction which can be accommo-
dated.
3.3.3 Inclination
The maximum allowable inclination in the longitudinal and transverse axes in the form of
appropriate drawings and tables.
NOTE The specification may be given with the aid of drawings if this ensures clarity.
3.4 Fixed connectors
3.4.1 Dimensions
The detail specification shall include (an) outline drawing(s) of the fixed connector(s) showing
the prime dimensions and associated geometrical tolerances.
For clarity the value of the dimensions may be included as tables which may be separated for
those dimensions which are common to all styles/variants and those dimensions which are
particular to styles/variants.
Details of marking of contact positions; within a row by numbers and marking of contact rows
by letters shall be included in the drawing(s).
3.4.2 Terminations
The detail specification shall include termination length, width, thickness, and diagonal
dimensions, as appropriate.
Dimensional details of the terminations (lengths, thicknesses, diagonals, etc.) and their
intended application which may be specified by the appropriate combination of the IEC type
designation specified in 1.5 of the detail specification.

61076-3-001 © IEC:1999(E) – 21 –
3.3 Engagement (mating) information
3.3.1 Engaging (mating) direction
3.3.1.1 Contact levels and sequencing
3.3.2 Perpendicular to the engaging (mating) direction
3.3.3 Inclination
3.4 Fixed connectors
3.4.1 Dimensions
3.4.2 Terminations
– 22 – 61076-3-001 © IEC:1999(E)
Guidance notes
3.5 Free connectors
3.5.1 Dimensions
(An) outline drawing(s) with prime dimensional and geometrical tolerances shall be included in
the detail specification.
3.5.2 Terminations
The detail specification shall include termination length, width, thickness, and diagonal
dimensions, as appropriate.
3.6 Accessories
In cases where accessories may be used with the connectors, outline drawings with prime
dimensions shall be included in the detail specification.
Accessories may take the form of optional mounting hardware, coding devices, shielded
contacts, high current contacts, etc., which are not normally provided fitted to the connector.
Information on accessories may be presented as outline drawings with associated tabular data
similar to that used for the connector dimensional details.
3.7 Mounting information for fixed connectors
3.7.1 Hole pattern on printed boards
The detail specification shall show a plan view drawing of the hole pattern required in the
printed board and the position(s) and size of mounting hole(s) that are necessary to mount to
the connector. It shall be stated from which side of the printed board the view is drawn.
A table of dimensions shall be included.
The plan view drawing shall use the same dimensional references as those used in 3.4.1 for
the dimensions shown.
The hole sizes with tolerances shall be stated for both termination and mounting holes,
together with appropriate geometrical tolerances.
Plated-through hole dimensions for press-in terminations shall be in accordance with
IEC 60352-5.
The table of dimensions shall state the dimensions in the same order as that used in 3.4.1,
wherever possible.
61076-3-001 © IEC:1999(E) – 23 –
3.5 Free connectors
3.5.1 Dimensions
3.5.2 Terminations
3.6 Accessories
3.7 Mounting information for fixed connectors
3.7.1 Hole pattern on printed boards

– 24 – 61076-3-001 © IEC:1999(E)
Guidance notes
3.7.2 Mounting on panels
The detail specification shall show a plan view drawing of the required panel aperture and the
position(s) and size of mounting hole(s).
The minimum sizes of the dimensions of the panel aperture shall be stated together with the
relative position of the aperture to the mounting holes.
Where appropriate, dimensional references shall be the same as those used in 3.4.1.
3.8 Mounting information for free connectors
The detail specification shall show a plan view drawing of the hole pattern required in the
printed board and the position(s) and size of the mounting hole(s) that are necessary to mount
the connector.
The relationship of the hole pattern to the edge of the printed board shall be stated if
appropriate.
It shall be stated from which side of the printed board the view is drawn.
A table of dimensions shall be included.
The plan view drawing shall use the same dimensional references as those used in 3.5.1 for
the dimensions shown.
The hole sizes with tolerances shall be stated for both termination and mounting holes,
together with appropriate geometric tolerances.
Plated-through hole dimensions for press-in terminations shall be in accordance with
IEC 60352-5.
A table of dimensions shall be included and shall state the dimensions in the same order as
that used in 3.5.1, wherever possible.
3.9 Gauges
3.9.1 Sizing gauges and retention force gauges
Drawings of the gauges required to size and measure the retention force of resilient contacts
shall be included in the detail specification.
The drawings of the gauges shall specify the material to be used for the gauges, the minimum
hardness value of the gauges, the surface according to ISO 1302, and the surface finish to be
applied, if any.
The dimensions and tolerances stated shall include wear allowance.
Sizing gauges shall simulate the maximum conditions, retention force gauges shall simulate
the minimum conditions.
The mass of the retention gauges shall be stated.

61076-3-001 © IEC:1999(E) – 25 –
3.7.2 Mounting on panels
3.8 Mounting information for free connectors
3.9 Gauges
3.9.1 Sizing gauges and retention force gauges

– 26 – 61076-3-001 © IEC:1999(E)
Guidance notes
3.9.2 Mechanical function, engaging/separating/insertion/withdrawal force gauges
Where appropriate, drawings of the gauges required to conduct endurance testing and for
measurement of engaging/separating forces or insertion/withdrawal forces shall be included in
the detail specification. The drawings of the gauges shall specify the material to be used for the
gauges, the surface according to ISO 1302, and the surface finish to be applied.
The gauges shall simulate nominal conditions.
3.9.3 Probes
Probe damage testing is intended to apply only to female contacts.
The test probe shall be specified in the detail specification in accordance with the requirements
of test 16a of IEC 60512.
3.9.4 Contact resistance gauge
For edge-socket and other types of one-part connectors, the contact resistance measurement
shall be made using a gauge made of copper alloy (or other appropriate material) of minimum
thickness or a suitable printed board as defined in the detail specification.
A surface condition according to ISO 1302, and a suitable surface finish compatible with that of
the contacts of the connector to be tested shall be specified.
3.9.5 Test panel (for voltage proof test)
The drawing of the test panel shall show the minimum allowable aperture, the mounting hole
position(s) and size, and the panel thickness.
The panel shall be manufactured from an electrically conductive material which may have a
suitable surface finish.
61076-3-001 © IEC:1999(E) – 27 –
3.9.2 Mechanical function, engaging/separating/insertion/withdrawal force gauges
3.9.3 Probes
3.9.4 Contact resistance gauge
3.9.5 Test panel (for voltage proof test)

– 28 – 61076-3-001 © IEC:1999(E)
Guidance notes
4 Characteristics
To provide information on specified essential electrical and mechanical characteristics,
preferred methods of tests and measurements are listed, additional characteristics may be
added to the detail specification, when appropriate, for example in test group HP. See also
clause 4 of IEC 61076-3.
4.1 Climatic category
The climatic category of the connector shall be stated in the detail specification, in accordance
with 2.2 of IEC 61076-3.
The detail specification may contain more than one performance level, to which the climatic
category is linked. The relationship may be clarified by showing the details in a table, for
example:
Table 3 – Performance levels
Performance Climatic Temperature Damp heat,
level category steady state:
number of days
Lower Upper
°C °C
1 55/125/56 –55 125 56
2 25/085/10 –25 85 10
4.2 Electrical characteristics
4.2.1 Creepage and clearance distances
These parameters are quoted in table 4 as an example. If these dimensions differ per
connector style, a reference to such style shall be given. If it could occur in the application of
the connectors that there is the possibility of a reduction of the creepage or clearance
distances, then the following note shall be included in the detail specification:
Application information – The permissible rated voltage depends on the application or
specified safety requirements. Reductions in creepage or clearance distances may occur
due to the printed board or wiring used, and shall duly be taken into account.
A rated voltage is the value of the voltage, assigned to a connector by the manufacturer, to
which operation and performance characteristics are referred. This value may be added to the
table.
4.2.2 Voltage proof
The detail specification shall state
a) that the connector shall be mounted to the test panel specified in 3.9.5;
b) whether test method A, B or C is applicable;
c) the d.c. or a.c. r.m.s. voltage that shall be applied, contact to contact, and contact to test
panel.
The information may be presented in the form of a table.

61076-3-001 © IEC:1999(E) – 29 –
4 Characteristics
4.1 Climatic category
Table 3 – Performance levels
Performance Climatic Temperature Damp heat,
level category steady state:
number of days
Lower Upper
°C °C
4.2 Electrical characteristics
4.2.1 Creepage and clearance distances
Table 4 – Creepage and clearance distances
Connector style
and number of Style reference letter(s)
contacts
Minimum creepage
and
clearance distance
Application information – The permissible rated voltage depends on the application or
specified safety requirements. Reductions in creepage or clearance distances may occur
due to the printed board or wiring used, and shall duly be taken into account.
4.2.2 Voltage proof
Condition: IEC 60512, test 4a.
Standard atmospheric conditions.

– 30 – 61076-3-001 © IEC:1999(E)
Guidance notes
4.2.3 Current-carrying capacity
The detail specification shall show a current-carrying capacity curve for the connector
determined in accordance with the test procedure of test 5b of IEC 60512. The preparation of
specimen, type and size of cable/wire bundle shall be as specified in 5.1.4.
As an alternative, one value of current at a stated temperature on the current-carrying capacity
curve, together with the maximum operating temperature, may be stated in the detail
specification. Derating values in tabular form are also permitted, providing a minimum of two
points, including the ambient and the maximum temperatures, are given.
Important values, for example the current at 70 °C, shall be shown in a derating graph.
4.2.4 Contact resistance
The detail speci
...