oSIST prEN IEC 61076-1:2026

SLOVENSKI STANDARD
01-julij-2026
Konektorji za električno in elektronsko opremo - Zahteve za izdelek - 1. del:
Splošna specifikacija
Connectors for electrical and electronic equipment - Product requirements - Part 1:
Generic specification
Connecteurs pour équipements électroniques - Exigences de produit - Partie 1:
Spécification générique
Ta slovenski standard je istoveten z: prEN IEC 61076-1:2026
ICS:
31.220.10 Vtiči in vtičnice, konektorji Plug-and-socket devices.
Connectors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

48B/3210/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61076-1 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-06-05 2026-08-28
SUPERSEDES DOCUMENTS:
48B/3158/CD, 48B/3172/CC
IEC SC 48B : ELECTRICAL CONNECTORS
SECRETARIAT: SECRETARY:
United States of America Mr Jeffrey Toran
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
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CENELEC, is drawn to the fact that this Committee Draft
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CENELEC online voting system.
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Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Connectors for electrical and electronic equipment – Product requirements – Part 1: Generic
specification
PROPOSED STABILITY DATE: 2030
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IEC CDV 61076-1 © IEC 2026
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IEC CDV 61076-1 © IEC 2026
CONTENTS
CONTENTS . 1
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Technical information . 13
4.1 System of levels . 13
4.1.1 General . 13
4.1.2 Performance levels . 13
4.1.3 Compatibility . 15
4.2 Classification into climatic categories . 16
4.3 Clearance and creepage distances . 17
4.4 Current-carrying capacity . 17
4.5 Marking . 17
4.5.1 On the connector . 17
4.5.2 On the package . 18
5 Dimensional information . 18
5.1 Drawings and dimensions . 18
5.1.1 General . 18
5.1.2 System of lettering . 18
5.1.3 Purpose . 18
5.1.4 Detailed information. 19
5.2 Pin assignment . 19
5.3 Engagement (mating) information . 19
5.4 Fixed connectors . 19
5.5 Free connectors . 19
5.6 Accessories . 20
5.7 Mounting information . 20
5.8 Locking and sealing information . 20
5.9 Gauges . 20
6 Quality assessment procedures . 20
7 Characteristics . 20
7.1 Electrical characteristics . 20
7.2 Transmission characteristics . 21
7.3 Mechanical characteristics . 21
7.4 Other characteristics . 21
7.5 Environmental aspects . 21
8 Tests and test schedules . 21
8.1 General aspects . 21
8.1.1 General . 21
8.1.2 Sectional product specifications . 21
8.1.3 Blank detail product specifications . 22
8.1.4 Detail product specifications . 22
8.2 Test schedules. 22
8.3 Test procedures and measuring methods . 23
IEC CDV 61076-1 © IEC 2026
8.4 Pre-conditioning . 23
8.5 Wiring and mounting of specimens . 23
8.5.1 Wiring . 23
8.5.2 Mounting . 23
Annex A (normative) Common lettering system to be used in drawings . 24
A.1 Two-part connectors . 24
A.2 Edge-socket connector . 25
Annex B (normative) Levels of compatibility . 26
B.1 General . 26
B.2 Intermountability . 27
B.3 Intermateability . 28
B.4 Intermountability and intermateability . 28
B.5 Interoperability . 29
B.6 Interchangeability . 29
B.7 Backward compatibility . 29
Bibliography . 30

Figure 1 – Detail specification structure at the time of publication of IEC 61076-1 Ed. 2 . 7
Figure 2 – New documentation structure for specifications drafted in SC 48B -
Separation of product and quality assessment requirements per IEC 61076-1 Ed. 2 . 8
Figure A.1 – Two-part connectors . 24
Figure A.2 – Edge-socket connector . 25

Table 1 – Climatic categories - selected values . 16
ab a
Table B.1 – Levels of compatibility and required parameters . 26

IEC CDV 61076-1 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Connectors for electrical and electronic equipment – Product
requirements –
Part 1: Generic specification
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for
standardization comprising all national electrotechnical committees (IEC National Committees).
The object of IEC is to promote international co-operation on all questions concerning
standardization in the electrical and electronic fields. To this end and in addition to other
activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National
Committee interested in the subject dealt with may participate in this preparatory work.
International, governmental and non-governmental organizations liaising with the IEC also
participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as
possible, an international consensus of opinion on the relevant subjects since each technical
committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted
by IEC National Committees in that sense. While all reasonable efforts are made to ensure that
the technical content of IEC Publications is accurate, IEC cannot be held responsible for the
way in which they are used or for any misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC
Publications transparently to the maximum extent possible in their national and regional
publications. Any divergence between any IEC Publication and the corresponding national or
regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies
provide conformity assessment services and, in some areas, access to IEC marks of conformity.
IEC is not responsible for any services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including
individual experts and members of its technical committees and IEC National Committees for
any personal injury, property damage or other damage of any nature whatsoever, whether direct
or indirect, or for costs (including legal fees) and expenses arising out of the publication, use
of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced
publications is indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve
the use of (a) patent(s). IEC takes no position concerning the evidence, validity or applicability
of any claimed patent rights in respect thereof. As of the date of publication of this document,
IEC had not received notice of (a) patent(s), which may be required to implement this document.
IEC CDV 61076-1 © IEC 2026
However, implementers are cautioned that this may not represent the latest information, which
may be obtained from the patent database available at https://patents.iec.ch. IEC shall not be
held responsible for identifying any or all such patent rights.
IEC 61076-1 has been prepared by subcommittee 48B: Electrical connectors, of IEC technical
committee 48: Electrical connectors and mechanical structures for electrical and electronic
equipment. It is an International Standard.
This third edition cancels and replaces the second edition published in 2006 and Amendment
1:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) revision of Scope moving former subclauses 1.2.1, 1.2.2 and 1.2.3, respectively providing
requirements for sectional product specifications, blank detail specifications and detail
product specification to more specific relevant subclauses;
b) alignment with most recent IEC template concerning mandatory first Clause 1, Clause 2,
Clause 3;
c) updated Introduction, removing duplicated text;
d) updated and expanded normative references, as well as Bibliography;
e) added several useful cross-references in the text;
f) alignment of clause numbering with the new edition under development of some sectional
product specifications.
The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 61076 series, published under the general title Connectors for
electrical and electronic equipment - Product requirements, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
IEC CDV 61076-1 © IEC 2026
INTRODUCTION
The objective of the third Edition of this document is to review and update the connector
specifications containing product requirements.
The objective of its first edition was to update the quality assessment procedures of the
connector specifications to the state-of-the-art industrial procedures at that time. At its time of
publication, all the connector detail specifications dealt with by subcommittee 48B of the
International Electrotechnical Commission were built as described in Figure 1 with 5 major
chapters.
The most significant out-of-date procedures were related to the lot-by-lot tests with different
inspection levels and acceptance quality level, and to the periodic tests with permitted number
of defects.
To update the document to reflect more modern practices, it was then felt necessary to
introduce the capability and the technology approval, together with the basic design parameters
of statistical process control, as a feedback system to have a continuous control of the quality
during the various steps of manufacture.
It was also then felt appropriate to split the documentation structure, at that moment used, into
two separate structures of documents which, in the day-to-day use of specifications, could
satisfy most users, see Figure 2.
This offered the user the option to acquire products with and without certification. It is obvious
that the industry needs to get separate information on dimensions, performance requirements
and basic design parameters.
The documentation system has been then split into two parts:
Product requirements
Quality assessment requirements
The structure for the connector detail product specification contains characteristics,
dimensions, performance requirements (electrical, environmental, mechanical) and test
schedules. The relevant document is this document, together with the applicable sectional
specification.
The structure for the connector quality assessment specification contains the requirements to
obtain qualification approval (QA) for a given performance level (per environmental category),
capability approval (CA) per family of connectors or technology approval (TA), comprising all
relevant technologies for connector production.
Capability approval or technology approval combined with statistical process control
parameters were intended to replace lot-by-lot and periodic tests. The relevant document is:
IEC 62197-1:2006, Connectors for electrical and electronic equipment - Quality assessment
requirements - Part 1: Generic specification
To specify a fully certifiable product, a combination of the two structures had to be selected by
the user, keeping in mind that in the statistical process control, key characteristics would have
to be agreed between manufacturer and user.
A generic product specification with a 4-level structure consists of a generic, a sectional, a
blank detail and a detail specification.
IEC CDV 61076-1 © IEC 2026
Besides this generic specification, the currently availabe sectional specifications are the
following:
IEC 61076-2, Connectors for electrical and electronic equipment - Product requirements - Part
2: Circular connectors - Sectional specification
IEC 61076-3, Connectors for electrical and electronic equipment - Product requirements - Part
3: Rectangular connectors - Sectional specification
IEC 61076-4, Connectors with assessed quality, for use in d.c., low-frequency analogue and in
digital high-speed data applications - Part 4: Sectional specification - Printed board connectors
IEC 61076-7, Connectors for use in d.c., low-frequency analogue and digital high speed data
applications - Part 7: Cable outlet accessories with assessed quality, including qualification and
capability approval - Sectional specifiation
NOTE 1 Sectional specifications Part 5 and Part 6 have been in the meantime withdrawn.
NOTE 2 Titles of Part 2 and Part 3 are already as in their forthcoming new editions. Titles of Part 4 and Part 7 will
be aligned to the agreed new format that extends use of connectors also to electrical equipent, in line with the
revision of scope of subcommittee 48B occurred some years ago.
Underneath this second level, the available documents of the third level are the blank detail
specifications as follows.
IEC 61076-2-001:2011, Connectors for electronic equipment - Product requirements - Part 2-
001: Circular connectors - Blank detail specification
IEC 61076-3-001:2008, Connectors for electronic equipment - Product requirements - Part 3-
001: Rectangular connectors - Blank detail specification
IEC 61076-4-001:1996, Connectors with assessed quality, for use in d.c., low-
frequencyanalogue and in digital high-speed data applications - Part 4:Printed board connectors
- Section 001: Blank detail specification
IEC 61076-7-001:2004, Connectors for electronic equipment - Part 7-001: Cable outlet
accessories - Blank detail specification
NOTE 3 Titles of all these sectional specifications will be aligned to the new format at any new edition.
From this, it can be concluded that two generic specifications were issued, one document for
the product aspects (this one) and a second one for the quality aspects.
The sectional specifications are issued at the product level per family of connectors, for example
printed board connectors, circular connectors, rectangular connectors, etc.
At the quality assessment level, IEC 62197-1:2006 deals with qualification approval in Clause
B.2, capability approval in Clause B.3 and technology approval in Clause B.4.
IEC CDV 61076-1 © IEC 2026
Figure 1 – Detail specification structure at the time of publication of IEC 61076-1 Ed. 2
IEC CDV 61076-1 © IEC 2026
NOTE Detail and blank detail specifications for the same connector are foreseen to have publication numbers with
identical suffix in the IEC 61076 and 62197 series; for instance, IEC 61076-4-100 and IEC 62197-4-100 should be
associated with the same connector.
Figure 2 – New documentation structure for specifications drafted in SC 48B -
Separation of product and quality assessment requirements per IEC 61076-1 Ed. 2
The following items were listed in the bibliography but not cited in the text. Please find a suitable
place to cite them to justify their inclusion in the bibliography:
IEC 61076-2, Connectors for electrical and electronic equipment - Product requirements - Part
2: Sectional specification for circular connectorsIEC 61076-2 [1]
IEC 61076-2-001:2011, Connectors for electronic equipment - Product requirements - Part 2-
001: Circular connectors - Blank detail specificationIEC 61076-2-001:2011 [2]
IEC CDV 61076-1 © IEC 2026
IEC 61076-3-001:2008, Connectors for electronic equipment - Product requirements - Part 3-
001: Rectangular connectors - Blank detail specificationIEC 61076-3-001:2008 [3]
IEC 61076-4, Connectors with assessed quality, for use in d.c., low-frequency analogue and in
digital high-speed data applications - Part 4: Sectional specification - Printed board
connectorsIEC 61076-4 [4]
IEC 61076-4-001:1996, Connectors with assessed quality, for use in d.c., low-frequency
analogue and in digital high-speed data applications - Part 4: Printed board connectors - Section
001: Blank detail specificationIEC 61076-4-001:1996 [5]
IEC 61076-7:2000, Connectors for use in d.c., low-frequency analogue and digital high speed
data applications - Part 7: Cable outlet accessories with assessed quality, including qualification
and capability approval - Sectional specificationIEC 61076-7:2000 [6]
IEC 61076-7-001:2004, Connectors for electronic equipment - Part 7-001: Cable outlet
accessories - Blank detail specificationIEC 61076-7-001:2004 [7]
PL NOTE (to be removed as the text above) New text has been added to justify their presence
in Bibliography (although most were shown in Figure 2).
IEC CDV 61076-1 © IEC 2026
1 Scope
This part of IEC 61076 establishes uniform specifications and technical information for
connectors. It is applicable to the family of connectors for use in electrical and electronic
equipment. It contains, or gives reference to, the terms, definitions, symbols, test schedules
and information relating to connectors.
Connectors designed for use at radio frequencies are not covered.
It shall be used in conjunction with IEC GUIDE 109:2003 that advocates the need to minimize
the impact of a product on the natural environment throughout the product life cycle.
It is understood that some materials permitted by this specification and in manufacturing and
assembly processes may have a negative environmental impact. As technological advances
lead to acceptable alternatives for these materials, they shall be eliminated from this
specification. Inappropriate manufacturing processes should be replaced by a product design
that features easy maintainability and disassembly.
In the event of conflict between this part of IEC 61076 and the sectional product specification,
the requirements of the sectional product specification prevail.
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 GUIDE 109:2003, Environmental aspects - Inclusion in electrotechnical product standards
IEC 60050-581:2008, International Electrotechnical Vocabulary (IEV) - Part 581:
Electromechanical components for electronic equipment
IEC 60068-1:2013, Environmental testing - Part 1: General and guidance
IEC 60228, Conductors of insulated cables
IEC 60352 (all parts), Solderless connections
IEC 60512 (all parts), Connectors for electrical and electronic equipment - Tests and
measurements
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60603-7, Connectors for electronic equipment - Part 7: Detail specification for 8-way,
unshielded, free and fixed connectors
IEC 60664-1:2020, Insulation coordination for equipment within low-voltage supply systems -
Part 1: Principles, requirements and tests
IEC 60999-1:1999, Connecting devices - Electrical copper conductors - Safety requirements for
screw-type and screwless-type clamping units - Part 1: General requirements and particular
requirements for clamping units for conductors from 0,2 mm2 up to 35 mm2 (included)
IEC 61984:2008, Connectors - Safety requirements and tests
IEC CDV 61076-1 © IEC 2026
IEC 62197-1:2006, Connectors for electronic equipment - Quality assessment requirements -
Part 1: Generic specification
IEC TR 63040, Guidance on clearances and creepage distances in particular for distances
equal to or less than 2 mm - Test results of research on influencing parameters
ISO 129-1:2018, Technical product documentation (TPD) — Presentation of dimensions and
tolerances — Part 1: General principles
ISO 286-1:2010, Geometrical product specifications (GPS) — ISO code system for tolerances
on linear sizes — Part 1: Basis of tolerances, deviations and fits
ISO 286-2:2010, Geometrical product specifications (GPS) — ISO code system for tolerances
on linear sizes — Part 2: Tables of standard tolerance classes and limit deviations for holes
and shafts
ISO 1101:2017, Geometrical product specifications (GPS) — Geometrical tolerancing —
Tolerances of form, orientation, location and run-out
ISO 14405-1, Geometrical product specifications (GPS) — Dimensional tolerancing — Part 1:
Linear sizes
ISO 14405-2, Geometrical product specifications (GPS) — Dimensional tolerancing — Part 2:
Dimensions other than linear or angular sizes
ISO 21920-1:2021, Geometrical product specifications (GPS) — Surface texture: Profile — Part
1: Indication of surface texture
ISO 80000-1, Quantities and units — Part 1: General
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581:2008, IEC
60512-1, and IEC 61984:2008, and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
3.1
family
connector
3.2
subfamily
group of connectors recognizable by their basic shape or intended application i.e.
– circular connectors;
– rectangular connectors;
– printed board connectors;
– in-line sockets devices.
IEC CDV 61076-1 © IEC 2026
3.3
type
connectors within a particular subfamily, such as edge-socket connectors for printed boards or
two-part connectors for printed boards
3.4
style
particular connector within a type
3.5
variant
variation within a type and style, or within a group of related connectors
EXAMPLE The following table provides an example of variant.
family: connectors;
subfamily: connectors for printed boards;
type: two-part connector for printed boards;
style: a particular configuration, for example flange mounting;
variant: number of contacts, polarisation, type of connection technology, etc.
3.6
interoperability
interoperability of different IEC 61076 series connectors and of IEC 61076 series connectors
with connectors of other series (e.g. IEC 60603-7 series) is ensured by compliance with the
specified interface dimensions, when they have the same number of contacts, the same
electrical wiring-related dimensions and when the lowest electrical, mechanical and climatic
performance (performance level) among the two connectors is suitable for the intended
application
3.7
number of contacts
number of contacts (or ways) that a connector owns, including the protective and/or functional
earth contact(s), if any
Note 1 to entry: A connector for removable contacts is characterized by its number of contact positions (seats): its
number of contacts (ways) may be lower than the number of contact positions (seats).
Note 2 to entry: The same number of contacts does not grant the same electrical interface: the geometry of said
contacts may be different while their number is the same.
3.8
overall dimensions
dimensions providing the overall space occupied by a connector
Note 1 to entry: Two connectors of the same gender may have the same overall dimensions but different mounting
dimensions and/or different interface dimensions
3.9
interface dimensions
set of dimensions required to fully describe the connector's mating interface, belonging to both
the connector insert and to the relevant electric contacts
Note 1 to entry: Interface dimensions enable the proper functioning of a mated set of connectors according to the
relevant product detail specification or manufacturer's detail specification.
Note 2 to entry: Two connectors with same interface dimensions have the same number of contact seats (or
positions), whereas they may not show the same number of contacts (ways).
IEC CDV 61076-1 © IEC 2026
3.10
mounting dimensions
dimensions enabling the mounting of a connector
Note 1 to entry: Examples of mounting dimensions are panel cutout size, size and interaxes of fixing holes or
threads.
Note 2 to entry: The geometry of the mounting interface of printed board connectors to the PCB belongs to the
mounting dimensions: two printed board connectors of the same gender with the same mounting dimensions share
the same pattern and pitch of their contacts.
Note 3 to entry: Two connectors not of the printed board subfamily of the same gender with the same mounting
dimensions may have different interface dimensions.
Note 4 to entry: Two connectors of the same gender with the same mounting dimensions may have different overall
dimensions.
3.11
electrical wiring-related dimensions
dimensions related to the wiring of the connector, i.e. to its number and type of contacts (ways)
Note 1 to entry: Two connectors of the same gender with the same electrical wiring-related dimensions have the
same number of contacts (ways) or contact positions (seats), the same dimensions of these contacts or contact
positions, the same overall dimensions, the same interface dimensions, and if they are printed board connectors, the
same mounting dimensions.
3.12
electrical, mechanical and climatic performances
levels of electrical, mechanical and climatic performance assigned to a connector in the relevant
product detail specification or manufacturer's detail specification, therein verified through
dedicated groups of tests
Note 1 to entry: The electrical performance includes signal integrity.
4 Technical information
4.1 System of levels
4.1.1 General
Clauses 4.1.2 and 4.1.3.2 provide information about performance levels and compatibility
levels, respectively.
The term "level" is used in the following with different meanings:
– performance level (see 4.1.2);
– compatibility level (see 4.1.3.2)
and these should clearly be distinguished. All details of the levels and their combinations shall
be specified in the detail product specification. A detail product specification may contain more
than one performance level and compatibility level.
4.1.2 Performance levels
If appropriate, the detail product specification shall contain information about the different
performance levels.
The term "performance level" reflects the grouping of the climatic and mechanical stresses at
which a component is tested, as well as the long-term stability of electrical characteristics
defining its electrical performance, which includes, as applicable, signal integrity.
IEC CDV 61076-1 © IEC 2026
If different levels are defined in a detail product specification, they shall be numbered, where
the lowest number (1) usually indicates the highest performance.
They consist in:
– operating environment (climatic conditions), see 4.1.2.1;
– electrical characteristics, see 4.1.2.2;
– mechanical characteristics, see 4.1.2.3;
In addition to those, further characteristics that are mandatorily specified in detail product
specifications are:
– test schedule;
– severities of test conditions;
– end-of-test conditions (acceptance criteria);
– different (closer) tolerances on characteristics;
– different severities for environmental testing.
4.1.2.1 Operating environment
This covers definition and values for the following parameters:
– temperature and temperature ranges (see 4.3);
– humidity and damp heat, steady state (see 4.3);
– IP degree of protection according to IEC 60529, as applicable (see 7.4);
– low air pressure (see 7.4);
– fluid immersion and resistance (see 7.4);
– corrosion by industrial atmosphere (concentration of polluting gasses or salt spray
endurance) (see 7.4).
4.1.2.2 Electrical characteristics
These cover definition and values of the following parameters (see 7.1):
– clearance and creepage distances (associated to the rated insulation voltage(s), the rated
impulse voltage(s) and the assigned pollution degree, see IEC 60664-1:2020 or IEC TR
63040, and IEC 61984:2008 as applicable, see also 4.4);
– voltage proof (which derives from the above);
– connection technologies, type of conductor(s) and range of sizes;
NOTE 1 A connector can be foreseen for multiple connection technologies, either solderless per IEC 60352 (all
parts), solder type, or screw-type per IEC 60999-1:1999.
NOTE 2 Type of conductor(s) refers to the nature of material (e.g. copper or copper alloy, aluminium, or other
conductive material) and its class, as defined in IEC 60228: class 1 (rigid), class 2 (stranded), class 5 (flexible), class
6 (more flexible than class 5).
– current-carrying capacity (see 4.5);
– mating and unmating under load, if applicable (e.g., CBC per IEC 61984:2008);
– contact resistance and shield resistance (if any);
– insulation resistance;
– transmission characteristics (signal integrity) (see 7.2).
4.1.2.3 Mechanical characteristics
These cover definition and values of the following parameters (see 7.3 and 7.4):
IEC CDV 61076-1 © IEC 2026
– mechanical operation;
– engaging and separating forces;
– functionality of contact retaining systems;
– capability for keying and/or polarisation;
– axial static load;
– mechanical shock and vibration.
4.1.3 Compatibility
4.1.3.1 General
Compatibility comprises specification of intermountability (see Clause B.2), intermateability
(see Clause B.3) and/or interchangeability (see Clause B.6), as well as of interoperability (see
Clause B.5) and backward compatibility (see Clause B.7), where applicable, as detailed in
4.1.3.2 and in Annex B (normative), to guarantee compliance with requirements of mated
connector pairs, when the individual connector halves are supplied by different sources.
Examples of such parameters are:
– contact design;
– shape and dimension of mechanical interface;
– material specifications;
– retention information of loose-part or removable contacts;
– locking device;
– mounting information.
NOTE Additional compatibility requirements may be defined in the product detail specification to fulfil compliance
with automatic mounting, assembling and solder/solderless termination tools.
4.1.3.2 Compatibility levels
4.1.3.2.1 General
As a function of the standardisation degree, four levels characterize the compatibility of
connectors from different sources. These levels are defined in 4.1.3.2.2 to 4.1.3.2.5 and shall,
when appropriate, be indicated in the detail product specification of connectors.
NOTE If connectors of different compatibility levels are mated, the lower level prevails.
4.1.3.2.2 Level 1 - Intermountable
This level standardizes only overall dimensions and mounting dimensions on printed board or
panel cut-out and cable termination assembly. Connectors from different sources are not
necessarily intermateable.
Information required in a detail specification in order to satisfy this level is:
For printed board connectors:
– printed board layout;
– board distances and orientation (parallel or perpendicular);
– panel cut-out and location, if applicable.
For free cable connector, cable termination assembly characteristics shall be specified.
IEC CDV 61076-1 © IEC 2026
4.1.3.2.3 Level 2 - Intermateable
This level standardizes only dimensions of electrical and mechanical interfaces.
Electrical, mechanical and climatic performances of connectors from different sources, when
mated, are not fully guaranteed.
4.1.3.2.4 Level 3 - Intermateable and intermountable
This level standardizes mounting dimensions, electrical and mechanical interface and overall
dimensions.
Electrical, mechanical and climatic performances of connectors, from different sources, when
mated, are not fully guaranteed.
4.1.3.2.5 Level 4 - Interchangeable
This level standardizes all the elements guaranteeing compliance of the electrical, mechanical
and climatic performances of mated connectors when individual connectors halves are from
different sources.
NOTE The complexity of demonstrating interchangeability at level 4 may be substantial and therefore should be
evaluated prior to the level being specified.
4.2 Classification into climatic categories
Connectors are classified into climatic categories in accordance with the general rules given in
IEC 60068-1:2013, Annex A.
Preferred temperature ranges and severities of the damp heat, steady state tests have been
selected, see Table 1. Any combination of these elements may be used, and should be written
in the format: for example 10/070/04, in the applicable sectional and detail product
specifications.
For a correct assignment of climatic category, the correct relationship between the upper
category temperature (UCT) and the upper limiting temperature (ULT) of a connector (implied
in the derating diagram(s) discussed in 4.5), as well as between the lowest category
temperature (LCT) and the lower limiting temperature (LLT) of a connector, see IEC 61984:2008
relevant definitions.
Table 1 – Climatic categories - selected values
Lower temperature Upper temperature Damp heat, steady state
°C °C Days
-10 70 4
-25 85 10
-40 100 21
-55 125 56
-65 155
IEC CDV 61076-1 © IEC 2026
NOTE The first set of digits is for the cold test, the second set of digits for the dry heat test and the third for the
damp heat, steady state test.
4.3 Clearance and creepage distances
Permissible working or rated voltages depend on the connector end-use application and on the
applicable or specified safety requirements.
Clearance and creepage distances as well as proof voltages under specified air pressure shall
be specified in the detail product specification, based on the assigned rated insulation
voltage(s).
Guidance is provided in IEC 60664-1:2020 or IEC TR 63040, as applicable.
4.4 Current-carrying capacity
For each connector, the current-carrying capacity for the declared wire size (typically the
maximum) shall be specified in the detail product specification. It is preferable that the derating
curve for the relevant wire size, determined in accordance with test 5b of IEC 60512-5-2 is
prepared. Alternatively, it is allowed to provide only one value of rated current for a specified
wire size at a specified temperature as described in IEC 60512-5-1.
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