IEC 63171-2:2021

IEC 63171-2 ®
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
Connectors for electrical and electronic equipment –
Part 2: Detail specification for 2-way, shielded or unshielded, free and fixed
connectors: mechanical mating information, pin assignment and additional
requirements for type 2
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IEC 63171-2 ®
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
Connectors for electrical and electronic equipment –

Part 2: Detail specification for 2-way, shielded or unshielded, free and fixed

connectors: mechanical mating information, pin assignment and additional

requirements for type 2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.220.10 ISBN 978-2-8322-9778-0

– 2 – IEC 63171-2:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Common features and typical connector pair . 8
4.1 Mating information . 8
5 Characteristics . 14
5.1 General . 14
5.2 Pin assignment . 15
5.3 Classification into climatic category . 15
5.4 Electrical characteristics . 15
5.5 Transmission characteristics . 16
5.6 Mechanical characteristics . 17
6 Tests and test schedule . 17
6.1 General . 17
6.2 Arrangement for interface contact resistance measurement . 18
6.3 Arrangement for vibration test . 19
6.4 Test procedures and measuring methods . 19
6.5 Preconditioning . 19
6.6 Test schedules . 19
Bibliography . 21

Figure 1 – Relationships between the IEC 63171 series and their related references . 5
Figure 2 – Shielded fixed connector details . 9
Figure 3 – Unshielded fixed connector details . 11
Figure 4 – Shielded free connector . 12
Figure 5 – Unshielded free connector . 14
Figure 6 – Fixed connector pin assignment (front view of connector) . 15
Figure 7 – Arrangement for interface contact resistance measurement . 18
Figure 8 – Arrangement for vibration test . 19

Table 1 – Dimensions for Figure 2 and Figure 3 . 10
Table 2 – Dimensions for Figure 4 and Figure 5 . 13
Table 3 – Creepage and clearance distances . 16

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –

Part 2: Detail specification for 2-way, shielded or unshielded,
free and fixed connectors: mechanical mating information,
pin assignment and additional requirements for type 2

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
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may participate in this preparatory work. International, governmental and non-governmental organizations liaising
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 63171-2 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.
The text of this International Standard is based on the following documents:
FDIS Report on voting
48B/2875/FDIS 48B/2886/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.

– 4 – IEC 63171-2:2021 © IEC 2021
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/standardsdev/publications.
A list of all parts in the IEC 63171 series, published under the general title Connectors for
electrical and electronic equipment, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
IEC 63171 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. Figure 1 shows the interrelation of the
documents:
Figure 1 – Relationships between the IEC 63171 series and their related references
NOTE IEC 63171-1 and IEC 63171-6 contain duplicate information, which is either equal to or better than the
minimum requirements of IEC 63171; such duplicate information is due to be removed in later editions.
This document refers to International Standards for test and measurement, environmental
testing as well as solderless connections.

– 6 – IEC 63171-2:2021 © IEC 2021
IEC SC 48B – Electrical connectors
IEC 63171-2 Ed. 1
Specification available from:
IEC General secretariat
or from the addresses shown on the inside cover.
Shielded connector with snap-
in mechanism
Shielded connector with
locking device
Unshielded connector with
snap-in mechanism
Unshielded connector with
locking device
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –

Part 2: Detail specification for 2-way, shielded or unshielded,
free and fixed connectors: mechanical mating information,
pin assignment and additional requirements for type 2

1 Scope
This part of IEC 63171 covers 2-way, shielded or unshielded, free and fixed connectors for data
transmission up to 600 MHz, with current-carrying capacity, known as Type 2. It specifies the
common dimensions, mechanical, electrical and transmission characteristics and environmental
requirements as well as test specifications respectively.
The form factor of these connectors allows their use for cable sharing with already installed
TO’s for structured cabling.
NOTE The overall performance of the transmission channel in such case has to be evaluated
...