IEC 60603-7:2008

IEC 60603-7 ®
Edition 3.1 2011-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Connectors for electronic equipment –
Part 7: Detail specification for 8-way, unshielded, free and fixed connectors

Connecteurs pour équipements électroniques –
Partie 7: Spécification particulière pour les fiches et les embases non écrantées
à 8 voies
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IEC 60603-7 ®
Edition 3.1 2011-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Connectors for electronic equipment –
Part 7: Detail specification for 8-way, unshielded, free and fixed connectors

Connecteurs pour équipements électroniques –
Partie 7: Spécification particulière pour les fiches et les embases non écrantées
à 8 voies
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX CN
ICS 31.220.01 ISBN 978-2-88912-831-0

– 2 – 60603-7  IEC:2008+A1:2011

CONTENTS
FOREWORD . 5

INTRODUCTION . 7

1 General . 8

1.1 Scope . 8

1.2 Normative references . 8

2 Terms and definitions . 10

3 Common features and typical connector pair . 11
3.1 View showing typical fixed and free connectors . 11
3.2 Mating information . 11
3.2.1 General . 11
3.2.2 Contacts – mating conditions . 12
3.2.3 Fixed connector . 14
3.2.4 Free connector . 17
4 Cable terminations and internal connections – Fixed and free connectors . 19
4.1 General . 19
4.2 Termination types . 19
4.2.1 Solder terminations (under consideration) . 19
4.2.2 Solderless terminations . 19
5 Gauges . 20
5.1 Fixed connectors . 20
5.2 Free connectors . 23
6 Characteristics . 25
6.1 General . 25
6.2 Pin and pair grouping assignment . 25
6.3 Classification into climatic category . 25
6.4 Electrical characteristics . 26
6.4.1 Creepage and clearance distances . 26
6.4.2 Voltage proof . 26
6.4.3 Current-temperature derating . 26
6.4.4 Initial contact resistance – interface only
(separable fixed and free contact) . 27
6.4.5 Input to output d.c. resistance . 27
6.4.6 Input-to-output d.c. resistance unbalance . 27
6.4.7 Initial insulation resistance . 28
6.4.8 Transfer impedance . 28
6.5 Transmission characteristics . 28
6.6 Mechanical characteristics . 28
6.6.1 Mechanical operation . 28
6.6.2 Effectiveness of connector coupling devices . 28
6.6.3 Insertion and withdrawal forces . 28
7 Tests and test schedule . 28
7.1 General . 28
7.2 Arrangement for contact resistance test . 29
7.3 Arrangement for vibration test (test phase CP1) . 30
7.4 Test procedures and measuring methods . 30

60603-7  IEC:2008+A1:2011 – 3 –

7.5 Preconditioning . 31

7.6 Wiring and mounting of specimens . 31

7.6.1 Wiring . 31

7.6.2 Mounting . 31

7.7 Test schedules . 31

7.7.1 Basic (minimum) test schedule . 31

7.7.2 Full test schedule . 31

Annex A (normative) Gauging continuity procedure . 40

Annex B (normative) Locking-device mechanical operation . 44
Annex C (normative) Gauge requirements . 45
Annex D (normative) Keystone connector information . 46
Bibliography . 48

Figure 1 – View showing typical fixed and free connectors . 11
Figure 2 – Contact interface dimensions with terminated free connector . 12
Figure 3 – Fixed connector details . 15
Figure 4 – Free connector view . 17
Figure 5 – “Go” gauge . 20
Figure 6 – “No-go” gauges . 22
Figure 7 – “No-go” gauges . 23
Figure 8 – “Go” gauge . 24
Figure 9 – Fixed connector pin and pair grouping assignment (front view of connector) . 25
Figure 10 – Connector de-rating curve . 27
Figure 11 – Arrangement for contact resistance test . 29
Figure 12 – Arrangement for vibration test . 30
Figure A.1 – Gauge. 42
Figure A.2 – Gauge insertion . 43
Figure D.1 – Keystone connector . 46
Figure D.2 – Panel drawing . 47

Table 1 – Dimensions for Figure 2 . 13

Table 2 – Dimensions for Figure 3 . 16
Table 3 – Dimensions for Figure 4 . 18
Table 4 – Dimensions for Figures 5 and 6 . 22
Table 5 – Dimensions for Figure 7 . 23
Table 6 – Dimensions for Figure 8 . 24
Table 7 – Climatic categories – selected values . 25
Table 8 – Creepage and clearance distances . 26
Table 9 – Test group P . 32
Table 10 – Test group AP . 33
Table 11 – Test group BP . 35
Table 12 – Test group CP . 36
Table 13 – Test group DP . 37

– 4 – 60603-7  IEC:2008+A1:2011

Table 14 – Test group EP . 38

Table 14 15 – Test group FP. 39

Table A.1 – Dimensions for Figure A.1 . 41

Table D.1 – Dimensions for Figure D.1 . 46

Table D.2 – Dimensions . 47

60603-7  IEC:2008+A1:2011 – 5 –

INTERNATIONAL ELECTROTECHNICAL COMMISSION

_____________
CONNECTORS FOR ELECTRONIC EQUIPMENT –

Part 7: Detail specification for 8-way, unshielded,

free and fixed connectors
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
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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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 consolidated version of IEC 60603-7 consists of the third edition (2008)
[documents 48B/1883A/FDIS and 48B/1917/RVD] and its amendment 1 (2011)
[documents 48B/2145/CDV and 48B/2205/RVC]. It bears the edition number 3.1.
The technical content is therefore identical to the base edition and its amendment and
has been prepared for user convenience. A vertical line in the margin shows where the
base publication has been modified by amendment 1. Additions and deletions are
displayed in red, with deletions being struck through.

– 6 – 60603-7  IEC:2008+A1:2011

International Standard IEC 60603-7 has been prepared by subcommittee 48B: Connectors, of
IEC technical committee 48: Electromechanical components and mechanical structures for

electronic equipment.
This third edition cancels and replaces the second edition published in 1996 and constitutes a

technical revision. This edition includes the following significant technical change with respect

to the previous edition:
– Drawings and test schedules were updated based on the work done developing

IEC 60603-7-4.
– A corrected figure (Figure 10) illustrating a connector de-rating curve has been prepared

and inserted in the text.
– Annex D contains the dimensions that define the panel mounting features on the
connector and panel that were referenced as the Type A, variant 03 connector in the
previous edition.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 60603-7 series, under the general title: Connectors for electronic
equipment, can be found on the IEC website.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication 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 publication using a colour printer.

60603-7  IEC:2008+A1:2011 – 7 –

INTRODUCTION
IEC 60603-7 is the base specification of the whole series. Subsequent specifications do not

duplicate information given in the base document, but list only additional requirements. For

complete specification regarding a component of a higher number document all lower

numbered documents must be considered as well. The following diagram shows the

interrelation of the documents:

Unshielded Shielded
3 MHz
IEC 60603-7 IEC 60603-7-1
100 MHz
IEC 60603-7-2 IEC 60603-7-3
250 MHz
IEC 60603-7-4 IEC 60603-7-5
500 MHz IEC 60603-7-41 IEC 60603-7-51
600 MHz
Indicates reference for IEC 60603-7-7
dimensions, mechanical and
electrical characteristics, tests
and test schedules.
1 000 MHz
IEC 60603-7-71
Indicates reference for
transmission performance
(backward compatibility).
It should be noted that during the preparation of the third edition of IEC 60603-7, the
subcommittee 48B Cat 6&7 project team members determined the current de-rating curve in
the standard was not correct. Several experts researched the current rating-temperature rise
measurements for 60603-7 style connectors and verified that the de-rating curve in the
published standard has been incorrect for many years. A corrected figure (Figure 10) has
been prepared and inserted in this edition.

– 8 – 60603-7  IEC:2008+A1:2011

CONNECTORS FOR ELECTRONIC EQUIPMENT –

Part 7: Detail specification for 8-way, unshielded,

free and fixed connectors
1 General
1.1 Scope
This part of IEC 60603-7 covers 8-way unshielded free and fixed connectors, it is intended to
specify the common dimensions, mechanical, electrical and environmental characteristics and
tests for the family of IEC 60603-7-x connectors.
These connectors are intermateable (according to IEC 61076-1 level 2) and interoperable with
other IEC 60603-7 series connectors.
1.2 Normative references
The following referenced documents are indispensable for the application 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 60050-581, International Electrotechnical Vocabulary (IEV) – Chapter 581:
Electromechanical components for electronic equipment
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60068-2-14, Basic environmental testing procedures – Part 2-14: Tests − Test N: Change
of temperature
IEC 60068-2-38, Basic environmental testing procedures – Part 2-38: Tests − Test Z/AD:
Composite temperature/ humidity cyclic test
IEC 60352-2, Solderless connections – Part 2: Crimped connections − General requirements,
test methods and practical guidance
IEC 60352-3, Solderless connections – Part 3: Solderless accessible insulation displacement

connections − General requirements, test methods and practical guidance
IEC 60352-4, Solderless connections – Part 4: Solderless non-accessible insulation displace-
ment connections − General requirements, test methods and practical guidance
IEC 60352-5, Solderless connections – Part 5: Press-in connections − General requirements,
test methods and practical guidance
IEC 60352-6, Solderless connections – Part 6: Insulation piercing connections – General
requirements, test methods and practical guidance
IEC 60352-7, Solderless connections – Part 7: Spring clamp connections − General
requirements, test methods and practical guidance
IEC 60512 (all parts), Connectors for electronic equipment – Tests and measurements

60603-7  IEC:2008+A1:2011 – 9 –

IEC 60512-1-100, Connectors for electronic equipment – Tests and measurements – Part 1-

100: General – Applicable publications

IEC 60603-7 (all parts), Connectors for electronic equipment

IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:

Principles, requirements and tests

IEC 61076-1:2006, Connectors for electronic equipment – Product Requirements – Part 1:

Generic specification
IEC 61156 (all parts), Multicore and symmetrical pair/quad cables for digital communications
IEC 61156-1, Multicore and symmetrical pair/quad cables for digital communications – Part 1:
Generic specification
IEC 61156-2, Multicore and symmetrical pair/quad cables for digital communications – Part 2:
Horizontal floor wiring – Sectional specification
IEC 61156-3, Multicore and symmetrical pair/quad cables for digital communications – Part 3:
Work area wiring – Sectional specification
IEC 61156-4, Multicore and symmetrical pair/quad cables for digital communications – Part 4:
Riser cables – Sectional specification
IEC 61156-5, Multicore and symmetrical pair/quad cables for digital communications – Part 5:
Symmetrical pair/quad cables with transmission characteristics up to 600 MHz – Horizontal
floor wiring – Sectional specification
IEC 61156-6, Multicore and symmetrical pair/quad cables for digital communications – Part 6:
Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz – Work area
wiring – Sectional specification
IEC 61156-7, Multicore and symmetrical pair/quad cables for digital communications – Part 7:
Symmetrical pair cables with transmission characteristics up to 1 200 MHz – Sectional
specification for digital and analog communication cables
ISO/IEC 11801, Information technology – Generic cabling for customer premises
ISO 1302, Geometrical Product Specifications (GPS) – Indication of surface texture in

technical product documentation
ITU-T Recommendation K.20:2000 , Resistibility of telecommunication equipment installed in
a telecommunications centre to overvoltages and overcurrents
ITU-T Recommendation K.44:2000 , Resistibility tests for telecommunication equipment
exposed to overvoltages and overcurrents – Basic Recommendation
———————
This document has been replaced by a new edition (2003), but for the purposes of this standard, the 2000
edition is cited.
This document has been replaced by a new edition (2003), but for the purposes of this standard, the 2000
edition is cited.
– 10 – 60603-7  IEC:2008+A1:2011

2 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581,

IEC 61076-1, IEC 60512-1, and the following apply.

2.1
intermateability
intermateability (level 2 of IEC 61076-1:2006 (Ed 2.0)) is ensured by application of the “Go”

and “No-Go” gauge requirements in the standards that may be referenced, and adherence to

the dimensional requirements within

2.2
interoperability
interoperability of different IEC 60603-7 connectors is assured by compliance with the
specified interface dimensions
2.3
category
relevant level of transmission performance as given in ISO/IEC 11801
2.4
Keystone connector
a Keystone connector is defined by it’s mounting features. The dimensional requirements for
the connector and it’s corresponding mounting panel are defined in Annex D

60603-7  IEC:2008+A1:2011 – 11 –

3 Common features and typical connector pair

3.1 View showing typical fixed and free connectors

IEC  086/05
Figure 1 – View showing typical fixed and free connectors
3.2 Mating information
3.2.1 General
Dimensions are given in millimetres. Drawings are shown in third-angle projection. The shape
of connectors may deviate from those given in Figures 1 to 4 as long as the dimensions
specified are not changed.
– 12 – 60603-7  IEC:2008+A1:2011

3.2.2 Contacts – mating conditions

P1
B2
-D-
F2
K2
N2
D R2
0,15 mm
A2
P3
C2
B2
-D-
N2
0,15 mm D
IEC  1011/08
H2
J2
G2
M2
D2
E2
IEC  087/05
Key
1 Female contact of fixed connector The mating information shown can only be achieved with a free
connector with a cable attached.
2 Burrs shall not project above the top of the contact in this area, since it may be a contact area.
3 Optional angle.
4 Preferred contact interface detail.
5 Minimum preferred contact configuration.
6 Configuration with round contact profile.
7 Configuration with rectangular contact profile.
Figure 2 – Contact interface dimensions with terminated free connector

60603-7  IEC:2008+A1:2011 – 13 –

Table 1 – Dimensions for Figure 2

Letter Maximum Minimum
mm
mm
A2 1,45 0,89
B2 0,61 0,51
C2 0,46 0,03
D2 2,79
E2 4,11
F2 6,22
H2 0,38
J2 0,64 0,38
K2 6,15 5,89
M2 0,30
N2 0,28
P1 0,50 0,45
P3 0,50 0,36
R2 4,83
Letter Maximum
G2 10°
Care shall be taken that the fixed connector contacts avoid interference with the plastic of the free connector.

– 14 – 60603-7  IEC:2008+A1:2011

3.2.3 Fixed connector
-X-
B1
0,05 mm X
AD1
A 3
0,05 mm C
(7×) AH1
AH1
AM1 4
AD1
K1
-B-
AB1
AB1
AM1
A
T1
0,25 mm C
W1
C
0,25 mm
S1
-C-
IEC  1012/08
Key
1 Contact zone. Contacts shall be completely within their individual contact zone in the area indicated.
2 0°15’ maximum taper.
3 Section A-A: see Figure 3b).
4 Relief outside of the area defined by dimension AM1 on both sides of the spring contacts in the fixed
connector is permitted.
Figure 3a) – View of contact zone

60603-7  IEC:2008+A1:2011 – 15 –

AN1
AT1
AS1
1 2
AT1
-B-
AC1
Z1
AK1
AA1
AP1
AJ1
AL1
SE1
X1
A1
Y1
-A-
IEC  1013/08
View of contact zone section A-A
Key
1 Optional contact rest.
2 Preferred free connector stop.
3 Contacts shown at rest. Contacts shall always be contained inside guide slots. Contacts shall move
freely within their guide slots.
4 This surface need not be planar or coincident with the surface below the locking device as long as
insertion, latching and unlatching of free connectors is not inhibited.
5 Maximum forward extension of contacts below surface AC1 to avoid contact with shields of free
connectors. Applies in the mated state.
6 Projections beyond AL1 dimension shall not prevent finger access to the free connector locking device.

7 All internal corners in the connector cavity shall be 0,38 mm radius maximum unless otherwise
specified.
Figure 3b) – Section A-A
Figure 3 – Fixed connector details

– 16 – 60603-7  IEC:2008+A1:2011

Table 2 – Dimensions for Figure 3

Letter Maximum Minimum Nominal (ref.)

mm mm mm
A1 1,47
B1 0,71
K1 5,84
S1 12,04 11,84 11,94
T1 4,19 3,94
W1 6,38 6,22
X1 6,86 6,68
Y1 2,40
Z1 2,08
AA1 1,24
AB1 0,38
AC1 6,96 6,76 6,86
AD1 0,13
AH1  1,02
a
TP
AK1 8,66 8,38
AL1 1,40
AM1 1,52
AP1 1,27
AS1 0,08
AT1  0,76
SE1 5,80
a
TP indicates true position.
Letter Maximum Suggested minimum
AJ1 15°
AN1 3°30’
60603-7  IEC:2008+A1:2011 – 17 –

3.2.4 Free connector
-A-
BE2
BF2
AH2
(7×) AH2
0,15 mm C
BG2
S2
-C-
B2
BD2
BH2
BC2
BJ2
BN2
AD2
AW2
BL2
Z2
AZ2
AC2
-B-
AA2
AX2
BB2
AY2
BB2
BK2
X2
AB2
BA2
T2
BM2
0,15 mm
C
Y2
W2
0,15 mm C
A2
-A-
IEC  1014/08
Key
1 Full radius permitted on all slots.
2 These dimensions apply to the locations of the contact slots.

3 Applies with locking device depressed.
Figure 4 – Free connector view

– 18 – 60603-7  IEC:2008+A1:2011

Table 3 – Dimensions for Figure 4

Letter Maximum Minimum Nominal (ref.)

mm mm mm
a a
a
A2 1,17
a a
a
B2 0,56
S2 11,79 11,58 11,68
T2 3,38 3,12
W2 6,17 6,02
X2 6,02 5,77
Y2 2,34
Z2 2,06
AA2 1,24
AB2 0,64 0,38
AC2 6,71 6,50 6,60
AD2 0,64 0,13
AH2  1,02
AW2 0,51
AX2 1,32
AY2 2,87 2,67
AZ2 0,64
BA2 12,32
BB2 1,14 0,38
BC2 1,02 0,51
BD2 0,51
BE2 1,09
BF2 0,64
BG2 0,64 0,38
BH2  0,13
BL2 8,36
BM2 15,88 14,61
BN2 8,00
a
See Table 1.
Letter Maximum Nominal (ref.)
BJ2 Full radius
BK2 3°30'
60603-7  IEC:2008+A1:2011 – 19 –

4 Cable terminations and internal connections – Fixed and free connectors

4.1 General
A connector may include multiple terminations between the cable termination and the

separable contact interface. These may include press-in connections of fixed connector

contacts into PCBs for example. All terminations shall meet the relevant termination

requirements.
Free connectors are intended to be terminated to cable to provide connector and cable

assemblies. The connector manufacturer shall provide basic information concerning the type
of conductor (stranded, solid) to which the connector may be applied, and the type of
connection used (solder, insulation displacement, etc.). Specific details concerning wire
gauge size, type and thickness of conductor insulation, size and shape of cordage or cable
sheath, etc. are not intended to be part of this detail specification. Minor variations in a free
connector’s interior details to accommodate differing wire gauge sizes, outer sheaths, etc. do
not require the generation of new free-connector specifications.
4.2 Termination types
4.2.1 Solder terminations
(under consideration)
4.2.2 Solderless terminations
4.2.2.1 Insulation displacement terminations
Insulation displacement terminations shall conform to IEC 60352-3 or IEC 60352-4.
4.2.2.2 Crimp terminations
Crimp terminations shall conform to IEC 60352-2.
4.2.2.3 Insulation piercing terminations
Insulation piercing terminations shall conform to IEC 60352-6.
4.2.2.4 Press-in terminations
The compliant pin shall conform to IEC 60352-5.
4.2.2.5 Spring clamp terminations

Spring clamp terminations shall conform to IEC 60352-7.
4.2.2.6 Other types
In the case where a type of solderless termination is used which is not covered by any IEC
standard and the supplier cannot demonstrate a similar level of performance or there is no
applicable IEC 60352 standard to be used as a reference, the supplier shall show
conformance with the full test schedule in 7.7 for all possible variations of termination, for
example each cable construction type (screen construction types, wire construction (solid,
flexible)) the connector is intended to be used for.

– 20 – 60603-7  IEC:2008+A1:2011

5 Gauges
5.1 Fixed connectors
Gauges shall be made according to the following requirements:

Material: hardened and tempered steel, all sharp edges removed, hardness 650 HV 20

minimum.
= Surface roughness, according to ISO 1302.

Ra = 0,25 µm maximum.
A 0,01 mm wear tolerance shall be applied.
Clearance shall be provided for connector contacts.
The “Go” gauge in Figure 5 is intended to assess the fixed connector minimum aperture width
and height, and shall not be used to assess contact forces. Clearance shall be provided for
connector signal contacts. If connector shield contacts are present, either clearance shall be
provided for these contacts (as long as the minimum aperture width and height are still
assessed) or these contacts, within the connector aperture, shall be removed.
BC1
X3
-C-
S3
BC1
AB3
AC3
AK3
C
W3 0,05 mm
IEC  091/05
Key
1 Four places.
2 Six places.
3 All around.
Figure 5 – “Go” gauge
60603-7  IEC:2008+A1:2011 – 21 –

BC1
X3
-C-
S5
BC1
AB3
AC5
AK5
W5 0,05 mm C
IEC  092/05
Key
1 Four places.
2 Six places.
3 All around.
Figure 6a) – “No-go” gauge width

– 22 – 60603-7  IEC:2008+A1:2011

BC1
X3
-C-
S7
BC1
AB3
AC7
AK7
W7 0,05 mm C
IEC  093/05
Key
1 Four places.
2 Six places.
3 All around.
Figure 6b) – “No-go” gauge height
Figure 6 – “No-go” gauges
Table 4 – Dimensions for Figures 5 and 6
Letter Maximum Minimum Nominal (ref)
mm mm mm
S3 11,796 11,786
S5 12,050 12,040
S7 11,68 11,58
X3 10,16
AB3 0,51 0,389 0,450
AC3 6,716 6,706
AC5 6,45 6,35
AC7 6,970 6,96
BC1 0,89 0,64 0,76
W3 6,12 6,109
W5 6,38 6,365
W7 5,97 5,89
AK3 8,357 8,346
AK5 8,13 8,05
AK7 8,672 8,66
60603-7  IEC:2008+A1:2011 – 23 –

5.2 Free connectors
Material: hardened and tempered steel, all sharp edges removed, hardness 650 HV

20 minimum.
= Surface roughness, according to ISO 1302.

Ra = 0,25 µm maximum.
A 0,01 mm wear tolerance shall be applied.

B
A
AX2
AX2
1 1
AT2
B
AT2
A
AD4
AD4
AD4
AK4 AK4
AC6
AC4
AB4
W6
0,1 mm C
AB4
AB4
0,1 mm
C W4
S6
S4
-C-
-C-
View A-A
View B-B
IEC  1015/08
Key
1 All around.
2 Width gauge.
3 Height gauge.
Figure 7 – “No-go” gauges
Table 5 – Dimensions for Figure 7

Letter Maximum Minimum
mm mm
S4 11,593 11,582
S6 11,989 11,887
W4 6,02 6,010
W6 6,40 6,30
AB4 0,38 0,0
AC4 6,91 6,81
AC6 6,512 6,502
AD4 0,127 0,0
AK4 9,42 9,32
AT2 15,29 15,19
AX2 0,635 0,38
– 24 – 60603-7  IEC:2008+A1:2011

A4 AD6
A
AD6
AX2 1
AW2
-B-
AC8
AB6
AK8
AA4 Z4
AB6
X4
A
AJ2
Y4
T4
0,05 mm C
AZ2 W6
0,05 mm C
-C-
S8
-A-
Section A-A
IEC  2750/11
Key
1 All around.
Figure 8 – “Go” gauge
Table 6 – Dimensions for Figure 8
Maximum Minimum
Letter
mm mm
A4 1,448 1,438
S8 11,847 11,836
T4 4,115 4,013
W6 6,198 6,187
X4 6,604 6,594
Y4 2,39 2,34
Z4 2,39 2,29
AA4 1,255 1,245
AB6 0,38 0,0
AC8 6,767 6,756
AD6 0,13 0,0
AK8 8,357 8,346
AW2 9,725 9,615
AX2 0,64 0,38
AZ2 11,91 11,81
Letter Maximum Minimum
AJ2 16° 14°
60603-7  IEC:2008+A1:2011 – 25 –

6 Characteristics
6.1 General
Compliance to the test schedules is intended to ensure the reliability of all performance

parameters, including transmission parameters, over the range of operating climatic

conditions. Stable and compliant contact resistance is a good indication of the stability of

transmission performance.
6.2 Pin and pair grouping assignment

For those specifications where pin and pair groupings are relevant, the pin and pair grouping
assignments shall be as shown in Figure 9 unless otherwise specified.

Figure 9 – Fixed connector pin and pair grouping assignment
(front view of connector)
6.3 Classification into climatic category
The lowest and highest temperatures and the duration of the damp-heat steady-state test
should be selected from the preferred values stated in 2.3 of IEC 61076-1:2006. The
connectors are classified into climatic categories in accordance with the general rules given in
IEC 60068-1. The temperature range and severity of the damp heat, steady state test given in

Table 7 are compatible with ISO/IEC 11801 classification of an office environment.
Table 7 – Climatic categories – selected values
Lower temperature Upper temperature Damp heat, steady state
Climatic category
°C °C days
40/070/21 –40 70 21
– 26 – 60603-7  IEC:2008+A1:2011

6.4 Electrical characteristics

6.4.1 Creepage and clearance distances

The permissible operating voltages depends on the application and also on the specified

safety requirements.
Insulation coordination is not required for this connector; therefore, the creepage and

clearance distances in IEC 60664-1 are reduced and covered by overall performance

requirements.
The creepage and clearance distances in Table 8 are given as operating characteristics of
mated connectors.
In practice, reductions in creepage or clearance distances may occur due to the conductive
pattern of the printed board or the wiring used, and shall duly be taken into account.
Table 8 – Creepage and clearance distances
Minimum distance between contacts and chassis Minimum distance between adjacent contacts
Creepage Clearance Creepage Clearance
mm mm mm mm
1,40 0,51 0,36 0,36
6.4.2 Voltage proof
Conditions: IEC 60512, Test 4a, Method A
Standard atmospheric conditions
Mated connectors
All variants: 1 000 V d.c. or a.c. peak; one contact to all other contacts
connected together.
1 500 V d.c. or a.c. peak; all contacts connected together to
shield, (housing/mounting plate) if present.
6.4.3 Current-temperature derating
Conditions: IEC 60512, Test 5b
All contacts, connected in series

The current-carrying capacity of connectors in accordance with the requirements of 2.5 of
IEC 61076-1:2006 shall comply with the de-rating curve given in Figure 10.

60603-7  IEC:2008+A1:2011 – 27 –

Current de-rating diagram
2,0
1,8
1,6
1,4
1,2
1,0
0,8
0,6
0,4
0,2
0,0
0 10 20 30 40 50 60 70 80 90 100
Ambient temperature  (°C)
IEC  1017/08
0,5
t
 
NOTE 1 The maximum permissible current for a given ambient temperature (t) is:
I = 1,76⋅ 1−
 
(t)
 
NOTE 2 For ambient temperatures lower than 0 °C, the maximum permissible curre
...

IEC 60603-7 ®
Edition 3.2 2019-01
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Connectors for electronic equipment –
Part 7: Detail specification for 8-way, unshielded, free and fixed connectors
Connecteurs pour équipements électroniques –
Partie 7: Spécification particulière pour les fiches et les embases non écrantées
à 8 voies
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IEC 60603-7 ®
Edition 3.2 2019-01
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Connectors for electronic equipment –
Part 7: Detail specification for 8-way, unshielded, free and fixed connectors
Connecteurs pour équipements électroniques –
Partie 7: Spécification particulière pour les fiches et les embases non écrantées
à 8 voies
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.220.01 ISBN 978-2-8322-6428-7

IEC 60603-7 ®
Edition 3.2 2019-01
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Connectors for electronic equipment –
Part 7: Detail specification for 8-way, unshielded, free and fixed connectors
Connecteurs pour équipements électroniques –
Partie 7: Spécification particulière pour les fiches et les embases non écrantées
à 8 voies
– 2 – IEC 60603-7:2008+AMD1:2011
+AMD2:2019 CSV  IEC 2019
CONTENTS
1 General . 8
1.1 Scope . 8
1.2 Normative references . 8
2 Terms and definitions . 10
3 Common features and typical connector pair . 12
3.1 View showing typical fixed and free connectors . 12
3.2 Mating information . 12
3.2.1 General . 12
3.2.2 Contacts – mating conditions . 13
3.2.3 Fixed connector . 15
3.2.4 Free connector . 18
4 Cable terminations and internal connections – Fixed and free connectors . 20
4.1 General . 20
4.2 Termination types . 20
4.2.1 Solder terminations (under consideration) . 20
4.2.2 Solderless terminations . 20
5 Gauges . 21
5.1 Fixed connectors . 21
5.2 Free connectors . 24
6 Characteristics . 26
6.1 General . 26
6.2 Pin and pair grouping assignment . 26
6.3 Classification into climatic category . 26
6.4 Electrical characteristics . 27
6.4.1 Creepage and clearance distances . 27
6.4.2 Voltage proof . 27
6.4.3 Current-temperature derating . 27
6.4.4 Initial contact resistance – interface only (separable fixed and free
contact) . 28
6.4.5 Input to output d.c. resistance . 28
6.4.6 Input-to-output d.c. resistance unbalance . 28
6.4.7 Initial insulation resistance . 29
6.4.8 Transfer impedance . 29
6.5 Transmission characteristics . 29
6.6 Mechanical characteristics . 29
6.6.1 Mechanical operation . 29
6.6.2 Effectiveness of connector coupling devices . 29
6.6.3 Insertion and withdrawal forces . 29
7 Tests and test schedule . 29
7.1 General . 29
7.2 Arrangement for contact resistance test . 30
7.3 Arrangement for vibration test (test phase CP1) . 31
7.4 Test procedures and measuring methods . 31
7.5 Preconditioning . 32
7.6 Wiring and mounting of specimens . 32
7.6.1 Wiring . 32

+AMD2:2019 CSV  IEC 2019
7.6.2 Mounting . 32
7.7 Test schedules . 32
7.7.1 Basic (minimum) test schedule . 32
7.7.2 Full test schedule . 32
Annex A (normative) Gauging continuity procedure . 41
Annex B (normative) Locking-device mechanical operation . 45
Annex C (normative) Gauge requirements . 46
Annex D (normative) Keystone connector information . 47
Annex E (normative) Levels of compatibility . 49

Figure 1 – View showing typical fixed and free connectors . 12
Figure 2 – Contact interface dimensions with terminated free connector . 13
Figure 3 – Fixed connector details . 16
Figure 4 – Free connector view . 18
Figure 5 – “Go” gauge . 21
Figure 6 – “No-go” gauges . 23
Figure 7 – “No-go” gauges . 24
Figure 8 – “Go” gauge . 25
Figure 9 – Fixed connector pin and pair grouping assignment (front view of connector) . 26
Figure 10 – Connector de-rating curve . 28
Figure 11 – Arrangement for contact resistance test . 30
Figure 12 – Arrangement for vibration test . 31
Figure A.1 – Gauge. 43
Figure A.2 – Gauge insertion . 44
Figure D.1 – Keystone connector . 47
Figure D.2 – Panel drawing . 48

Table 1 – Dimensions for Figure 2 . 14
Table 2 – Dimensions for Figure 3 . 17
Table 3 – Dimensions for Figure 4 . 19
Table 4 – Dimensions for Figures 5 and 6 . 23
Table 5 – Dimensions for Figure 7 . 24
Table 6 – Dimensions for Figure 8 . 25
Table 7 – Climatic categories – selected values . 26
Table 8 – Creepage and clearance distances . 27
Table 9 – Test group P . 33
Table 10 – Test group AP . 34
Table 11 – Test group BP . 36
Table 12 – Test group CP . 37
Table 13 – Test group DP . 38
Table 14 – Test group EP . 39
Table 14 15 – Test group FP. 40
Table A.1 – Dimensions for Figure A.1 . 42
Table D.1 – Dimensions for Figure D.1 . 47

– 4 – IEC 60603-7:2008+AMD1:2011
+AMD2:2019 CSV  IEC 2019
Table D.2 – Dimensions . 48
b) c) b)
Table E.1 – Levels of compatibility and required parameters . 50

+AMD2:2019 CSV  IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
CONNECTORS FOR ELECTRONIC EQUIPMENT –
Part 7: Detail specification for 8-way, unshielded,
free and fixed connectors
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
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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
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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 consolidated version of the official IEC Standard and its amendments has been
prepared for user convenience.
IEC 60603-7 edition 3.2 contains the third edition edition (2008-07) [documents
48B/1883A/FDIS and 48B/1917/RVD], its amendment 1 (2011-09) [documents 48B/2145/
CDV and 48B/2205/RVC] and its amendment 2 (2019-01) [documents 48B/2679/FDIS and
48B/2689/RVD].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendments 1 and 2. Additions are in green text, deletions are
instrikethrough red text. A separate Final version with all changes accepted is
available in this publication.

– 6 – IEC 60603-7:2008+AMD1:2011
+AMD2:2019 CSV  IEC 2019
International Standard IEC 60603-7 has been prepared by subcommittee 48B: Connectors, of
IEC technical committee 48: Electromechanical components and mechanical structures for
electronic equipment.
This third edition cancels and replaces the second edition published in 1996 and constitutes a
technical revision. This edition includes the following significant technical change with respect
to the previous edition:
– Drawings and test schedules were updated based on the work done developing
IEC 60603-7-4.
– A corrected figure (Figure 10) illustrating a connector de-rating curve has been prepared
and inserted in the text.
– Annex D contains the dimensions that define the panel mounting features on the
connector and panel that were referenced as the Type A, variant 03 connector in the
previous edition.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 60603-7 series, under the general title: Connectors for electronic
equipment, can be found on the IEC website.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication 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 publication using a colour printer.

+AMD2:2019 CSV  IEC 2019
INTRODUCTION
IEC 60603-7 is the base specification of the whole series. Subsequent specifications do not
duplicate information given in the base document, but list only additional requirements. For
complete specification regarding a component of a higher number document all lower
numbered documents must be considered as well. The following diagram shows the
interrelation of the documents:

Unshielded Shielded
3 MHz
IEC 60603-7 IEC 60603-7-1
100 MHz
IEC 60603-7-2 IEC 60603-7-3
250 MHz
IEC 60603-7-4 IEC 60603-7-5
500 MHz IEC 60603-7-41 IEC 60603-7-51
600 MHz
Indicates reference for IEC 60603-7-7
dimensions, mechanical and
electrical characteristics, tests
and test schedules.
1 000 MHz IEC 60603-7-71
Indicates reference for
transmission performance
(backward compatibility).
It should be noted that during the preparation of the third edition of IEC 60603-7, the
subcommittee 48B Cat 6&7 project team members determined the current de-rating curve in
the standard was not correct. Several experts researched the current rating-temperature rise
measurements for 60603-7 style connectors and verified that the de-rating curve in the
published standard has been incorrect for many years. A corrected figure (Figure 10) has
been prepared and inserted in this edition.

– 8 – IEC 60603-7:2008+AMD1:2011
+AMD2:2019 CSV  IEC 2019
CONNECTORS FOR ELECTRONIC EQUIPMENT –

Part 7: Detail specification for 8-way, unshielded,
free and fixed connectors
1 General
1.1 Scope
This part of IEC 60603-7 covers 8-way unshielded free and fixed connectors, it is intended to
specify the common dimensions, mechanical, electrical and environmental characteristics and
tests for the family of IEC 60603-7-x connectors.
These connectors are intermateable (according to IEC 61076-1 level 2) and interoperable with
other IEC 60603-7 series connectors.
Annex E (normative) is added to provide details regarding the levels of compatibility to be
declared by the manufacturer as appropriate.
1.2 Normative references
The following referenced documents are indispensable for the application 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 60050-581, International Electrotechnical Vocabulary (IEV) – Chapter 581:
Electromechanical components for electronic equipment
IEC 60068-1, Environmental testing – Part 1: General and guidance
− Test N: Change
IEC 60068-2-14, Basic environmental testing procedures – Part 2-14: Tests
of temperature
IEC 60068-2-38, Basic environmental testing procedures – Part 2-38: Tests − Test Z/AD:
Composite temperature/ humidity cyclic test
IEC 60352-2, Solderless connections – Part 2: Crimped connections − General requirements,
test methods and practical guidance
IEC 60352-3, Solderless connections – Part 3: Solderless accessible insulation displacement
connections − General requirements, test methods and practical guidance
IEC 60352-4, Solderless connections – Part 4: Solderless non-accessible insulation displace-
ment connections − General requirements, test methods and practical guidance
IEC 60352-5, Solderless connections – Part 5: Press-in connections − General requirements,
test methods and practical guidance
IEC 60352-6, Solderless connections – Part 6: Insulation piercing connections – General
requirements, test methods and practical guidance
IEC 60352-7, Solderless connections – Part 7: Spring clamp connections − General
requirements, test methods and practical guidance

+AMD2:2019 CSV  IEC 2019
IEC 60512 (all parts), Connectors for electronic equipment – Tests and measurements
IEC 60512-1-100, Connectors for electronic equipment – Tests and measurements – Part 1-
100: General – Applicable publications
IEC 60603-7 (all parts), Connectors for electronic equipment
IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 61076-1:2006, Connectors for electronic equipment – Product Requirements – Part 1:
Generic specification
IEC 61076-3:2008, Connectors for electrical and electronic equipment – Product requirements
– Part 3: Rectangular connectors – Sectional specification
IEC 61156 (all parts), Multicore and symmetrical pair/quad cables for digital communications
IEC 61156-1, Multicore and symmetrical pair/quad cables for digital communications – Part 1:
Generic specification
IEC 61156-2, Multicore and symmetrical pair/quad cables for digital communications – Part 2:
Horizontal floor wiring – Sectional specification
IEC 61156-3, Multicore and symmetrical pair/quad cables for digital communications – Part 3:
Work area wiring – Sectional specification
IEC 61156-4, Multicore and symmetrical pair/quad cables for digital communications – Part 4:
Riser cables – Sectional specification
IEC 61156-5, Multicore and symmetrical pair/quad cables for digital communications – Part 5:
Symmetrical pair/quad cables with transmission characteristics up to 600 MHz – Horizontal
floor wiring – Sectional specification
IEC 61156-6, Multicore and symmetrical pair/quad cables for digital communications – Part 6:
Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz – Work area
wiring – Sectional specification
IEC 61156-7, Multicore and symmetrical pair/quad cables for digital communications – Part 7:
Symmetrical pair cables with transmission characteristics up to 1 200 MHz – Sectional
specification for digital and analog communication cables
ISO/IEC 11801, Information technology – Generic cabling for customer premises
ISO 1302, Geometrical Product Specifications (GPS) – Indication of surface texture in
technical product documentation
ITU-T Recommendation K.20:2000 , Resistibility of telecommunication equipment installed in
a telecommunications centre to overvoltages and overcurrents
ITU-T Recommendation K.44:2000 , Resistibility tests for telecommunication equipment
exposed to overvoltages and overcurrents – Basic Recommendation
———————
This document has been replaced by a new edition (2003), but for the purposes of this standard, the 2000
edition is cited.
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2 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581,
IEC 61076-1, IEC 60512-1, and the following apply.
2.1
intermateability
intermateability (level 2 of IEC 61076-1:2006 (Ed 2.0)) is ensured by application of the “Go”
and “No-Go” gauge requirements in the standards that may be referenced, and by adherence
to the dimensional requirements within
SEE: Clause E.3.
2.2
interoperability
interoperability of different IEC 60603-7 connectors and of IEC 60603-7 connectors with
connectors of other families (e.g. IEC 61076-3 series) is assured 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
SEE: Clause E.5.
2.3
category
relevant level of transmission performance as given in ISO/IEC 11801
2.4
Keystone connector
a Keystone connector is defined by it’s mounting features. The dimensional requirements for
the connector and it’s corresponding mounting panel are defined in Annex D
2.5
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.
2.6
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.
2.7
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.

This document has been replaced by a new edition (2003), but for the purposes of this standard, the 2000
edition is cited.
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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).
2.8
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 Circuit Board connectors to the PCB belongs to
the mounting dimensions: two Printed Circuit 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 Circuit Board type 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.
2.9
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 Circuit Board
connectors, the same mounting dimensions
2.10
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.

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3 Common features and typical connector pair
3.1 View showing typical fixed and free connectors
IEC  086/05
Figure 1 – View showing typical fixed and free connectors
3.2 Mating information
3.2.1 General
Dimensions are given in millimetres. Drawings are shown in third-angle projection. The shape
of connectors may deviate from those given in Figures 1 to 4 as long as the dimensions
specified are not changed.
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3.2.2 Contacts – mating conditions
P1
B2
-D-
F2
K2
N2
D R2
0,15 mm
A2
P3
C2
B2
-D-
N2
0,15 mm D
IEC  1011/08
H2
J2
G2
M2
D2
E2
IEC  087/05
Key
1 Female contact of fixed connector The mating information shown can only be achieved with a free
connector with a cable attached.
2 Burrs shall not project above the top of the contact in this area, since it may be a contact area.
3 Optional angle.
4 Preferred contact interface detail.
5 Minimum preferred contact configuration.
6 Configuration with round contact profile.
7 Configuration with rectangular contact profile.
Figure 2 – Contact interface dimensions with terminated free connector

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Table 1 – Dimensions for Figure 2
Letter Maximum Minimum
mm mm
A2 1,45 0,89
B2 0,61 0,51
C2 0,46 0,03
D2 2,79
E2 4,11
F2 6,22
H2 0,38
J2 0,64 0,38
K2 6,15 5,89
M2 0,30
N2 0,28
P1 0,50 0,45
P3 0,50 0,36
R2 4,83
Letter Maximum
G2 10°
Care shall be taken that the fixed connector contacts avoid interference with the plastic of the free connector.

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3.2.3 Fixed connector
-X-
B1
0,05 mm X
AD1
A 3
0,05 mm C
(7×) AH1
AH1
AM1 4
AD1
K1
-B-
AB1
AB1
AM1
A
T1
0,25 mm C
W1
C
0,25 mm
S1
-C-
IEC  1012/08
Key
1 Contact zone. Contacts shall be completely within their individual contact zone in the area indicated.
2 0°15’ maximum taper.
3 Section A-A: see Figure 3b).
4 Relief outside of the area defined by dimension AM1 on both sides of the spring contacts in the fixed
connector is permitted.
Figure 3a) – View of contact zone

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AN1
AT1
AS1
1 2
AT1
-B-
AC1
Z1
AK1
AA1
AP1
AJ1
AL1
SE1
X1
A1
Y1
-A-
IEC  1013/08
View of contact zone section A-A
Key
1 Optional contact rest.
2 Preferred free connector stop.
3 Contacts shown at rest. Contacts shall always be contained inside guide slots. Contacts shall move
freely within their guide slots.
This surface need not be planar or coincident with the surface below the locking device as long as
insertion, latching and unlatching of free connectors is not inhibited.
5 Maximum forward extension of contacts below surface AC1 to avoid contact with shields of free
connectors. Applies in the mated state.
6 Projections beyond AL1 dimension shall not prevent finger access to the free connector locking device.
7 All internal corners in the connector cavity shall be 0,38 mm radius maximum unless otherwise
specified.
Figure 3b) – Section A-A
Figure 3 – Fixed connector details

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Table 2 – Dimensions for Figure 3
Letter Maximum Minimum Nominal (ref.)
mm mm mm
A1 1,47
B1 0,71
K1 5,84
S1 12,04 11,84 11,94
T1 4,19 3,94
W1 6,38 6,22
X1 6,86 6,68
Y1 2,40
Z1 2,08
AA1 1,24
AB1 0,38
AC1 6,96 6,76 6,86
AD1 0,13
AH1  1,02
a
TP
AK1 8,66 8,38
AL1 1,40
AM1 1,52
AP1 1,27
AS1 0,08
AT1  0,76
SE1 5,80
a
TP indicates true position.
Letter Maximum Suggested minimum
AJ1 15°
AN1 3°30’
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3.2.4 Free connector
-A-
BE2
BF2
AH2
(7×) AH2
0,15 mm C
BG2
S2
-C-
B2
BD2
BH2
BC2
BJ2 BN2
AD2
AW2 3
BL2
Z2
AZ2
AC2
-B-
AA2
AX2
BB2
AY2
BB2
BK2
X2
AB2
BA2
T2
BM2
0,15 mm C
Y2
W2
0,15 mm C
A2
-A-
IEC  1014/08
Key
1 Full radius permitted on all slots.
2 These dimensions apply to the locations of the contact slots.
3 Applies with locking device depressed.
Figure 4 – Free connector view

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Table 3 – Dimensions for Figure 4
Letter Maximum Minimum Nominal (ref.)
mm mm mm
a a
a
A2 1,17
a a
a
B2 0,56
S2 11,79 11,58 11,68
T2 3,38 3,12
W2 6,17 6,02
X2 6,02 5,77
Y2 2,34
Z2 2,06
AA2 1,24
AB2 0,64 0,38
AC2 6,71 6,50 6,60
AD2 0,64 0,13
AH2  1,02
AW2 0,51
AX2 1,32
AY2 2,87 2,67
AZ2 0,64
BA2 12,32
BB2 1,14 0,38
BC2 1,02 0,51
BD2 0,51
BE2 1,09
BF2 0,64
BG2 0,64 0,38
BH2  0,13
BL2 8,36
BM2 15,88 14,61
BN2 8,00
a
See Table 1.
Letter Maximum Nominal (ref.)
BJ2 Full radius
BK2 3°30'
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4 Cable terminations and internal connections – Fixed and free connectors
4.1 General
A connector may include multiple terminations between the cable termination and the
separable contact interface. These may include press-in connections of fixed connector
contacts into PCBs for example. All terminations shall meet the relevant termination
requirements.
Free connectors are intended to be terminated to cable to provide connector and cable
assemblies. The connector manufacturer shall provide basic information concerning the type
of conductor (stranded, solid) to which the connector may be applied, and the type of
connection used (solder, insulation displacement, etc.). Specific details concerning wire
gauge size, type and thickness of conductor insulation, size and shape of cordage or cable
sheath, etc. are not intended to be part of this detail specification. Minor variations in a free
connector’s interior details to accommodate differing wire gauge sizes, outer sheaths, etc. do
not require the generation of new free-connector specifications.
4.2 Termination types
4.2.1 Solder terminations
(under consideration)
4.2.2 Solderless terminations
4.2.2.1 Insulation displacement terminations
Insulation displacement terminations shall conform to IEC 60352-3 or IEC 60352-4.
4.2.2.2 Crimp terminations
Crimp terminations shall conform to IEC 60352-2.
4.2.2.3 Insulation piercing terminations
Insulation piercing terminations shall conform to IEC 60352-6.
4.2.2.4 Press-in terminations
The compliant pin shall conform to IEC 60352-5.
4.2.2.5 Spring clamp terminations
Spring clamp terminations shall conform to IEC 60352-7.
4.2.2.6 Other types
In the case where a type of solderless termination is used which is not covered by any IEC
standard and the supplier cannot demonstrate a similar level of performance or there is no
applicable IEC 60352 standard to be used as a reference, the supplier shall show
conformance with the full test schedule in 7.7 for all possible variations of termination, for
example each cable construction type (screen construction types, wire construction (solid,
flexible)) the connector is intended to be used for.

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5 Gauges
5.1 Fixed connectors
Gauges shall be made according to the following requirements:
Material: hardened and tempered steel, all sharp edges removed, hardness 650 HV 20
minimum.
= Surface roughness, according to ISO 1302.
Ra = 0,25 µm maximum.
A 0,01 mm wear tolerance shall be applied.
The “Go” gauge in Figure 5 is intended to assess the fixed connector minimum aperture width
and height, and shall not be used to assess contact forces. Clearance shall be provided for
connector signal contacts. If connector shield contacts are present, either clearance shall be
provided for these contacts (as long as the minimum aperture width and height are still
assessed) or these contacts, within the connector aperture, shall be removed.
BC1
X3
-C-
S3
BC1
AB3
AC3
AK3
W3 0,05 mm C
IEC  091/05
Key
1 Four places.
2 Six places.
3 All around.
Figure 5 – “Go” gauge
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BC1
X3
-C-
S5
BC1
AB3
AC5
AK5
W5 0,05 mm C
IEC  092/05
Key
1 Four places.
2 Six places.
3 All around.
Figure 6a) – “No-go” gauge width

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BC1
X3
-C-
S7
BC1
AB3
AC7
AK7
W7 0,05 mm C
IEC  093/05
Key
1 Four places.
2 Six places.
3 All around.
Figure 6b) – “No-go” gauge height
Figure 6 – “No-go” gauges
Table 4 – Dimensions for Figures 5 and 6
Letter Maximum Minimum Nominal (ref)
mm mm mm
S3 11,796 11,786
S5 12,050 12,040
S7 11,68 11,58
X3 10,16
AB3 0,51 0,389 0,450
AC3 6,716 6,706
AC5 6,45 6,35
AC7 6,970 6,96
BC1 0,89 0,64 0,76
W3 6,12 6,109
W5 6,38 6,365
W7 5,97 5,89
AK3 8,357 8,346
AK5 8,13 8,05
AK7 8,672 8,66
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5.2 Free connectors
Material: hardened and tempered steel, all sharp edges removed, har
...