IEC 62946-02:2017

Connectors for electronic equipment - Part 02: Detail specification for 8-way, unshielded, free and fixed high density connectors for data transmission up to 250 MHz and with current carrying capacity up to 1 A

IEC 62946-02:2017(E) covers 8-way, unshielded free and fixed high density connectors for data transmission with frequencies up to 250 MHz and with extra low voltage current carrying capabilities up to 1 A, and is intended to specify the common dimensions, mechanical, electrical, signal integrity and environmental characteristics and tests for these connectors.
The contents of the corrigendum of March 2020 have been included in this copy.

General Information

• Status: Published
• Publication Date: 19-Jan-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: PPUB - Publication issued
• Start Date: 18-Feb-2017
• Completion Date: 20-Jan-2017

Relations

• Corrected By: IEC 62946-02:2017/COR1:2020 - Corrigendum 1 - Connectors for electronic equipment - Part 02: Detail specification for 8-way, unshielded, free and fixed high density connectors for data transmission up to 250 MHz and with current carrying capacity up to 1 A
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62946-02 ®
Edition 1.0 2017-01
INTERNATIONAL
STANDARD
colour
inside
Connectors for electronic equipment –
Part 02: Detail specification for 8-way, unshielded, free and fixed high density
connectors for data transmission with frequencies up to 250 MHz and with
current carrying capacity up to 1 A
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IEC 62946-02 ®
Edition 1.0 2017-01
INTERNATIONAL
STANDARD
colour
inside
Connectors for electronic equipment –

Part 02: Detail specification for 8-way, unshielded, free and fixed high density

connectors for data transmission with frequencies up to 250 MHz and with

current carrying capacity up to 1 A

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.220.10 ISBN 978-2-8322-3838-7

– 2 – IEC 62946-02:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Common features and typical connector pair . 9
4.1 Mating information . 9
4.1.1 General . 9
4.1.2 Contacts – mating conditions . 9
4.1.3 Fixed connector . 10
4.1.4 Free connector . 12
5 Characteristics . 13
5.1 General . 13
5.2 Pin and pair grouping assignment . 13
5.3 Classification into climatic category . 13
5.4 Electrical characteristics . 13
5.4.1 General . 13
5.4.2 Creepage and clearance distances . 13
5.4.3 Contact resistance . 14
5.4.4 Voltage proof . 14
5.4.5 Current-temperature derating . 14
5.4.6 Initial insulation resistance . 15
5.4.7 Input to output d.c. resistance . 15
5.4.8 Input to output d.c. resistance unbalance . 15
5.4.9 Transfer impedance . 16
5.5 Transmission characteristics . 16
5.5.1 General . 16
5.5.2 Insertion loss (IL) . 16
5.5.3 Return loss (RL) . 16
5.5.4 Near end cross talk (NEXT) . 16
5.5.5 Far end cross talk (FEXT) . 16
5.5.6 Transverse conversion loss (TCL) . 17
5.5.7 Transverse conversion transfer loss (TCTL) . 17
5.5.8 Propagation delay . 17
5.5.9 Delay skew . 17
5.6 Mechanical characteristics . 17
5.6.1 Mechanical operation . 17
5.6.2 Insertion and withdrawal forces . 17
6 Tests and test schedule . 17
6.1 General . 17
6.2 Arrangement for contact resistance measurement . 18
6.3 Arrangement for vibration test (test phase EP5), see Figure 8. 19
6.4 Test procedures and measuring methods . 20
6.5 Preconditioning . 20
6.6 Test schedules . 20
6.6.1 Basic (minimum) test schedule . 20

6.6.2 Full test schedule . 20

Figure 1 – Contact interface dimensions with terminated free connector . 9
Figure 2 – View of contact zone . 10
Figure 3 – View of contact zone section A-A . 11
Figure 4 – Free connector view . 12
Figure 5 – Fixed connector pin and pair grouping assignment (front view of connector) . 13
Figure 6 – Connector de-rating curve . 15
Figure 7 – Arrangement for contact resistance measurement . 18
Figure 8 – Arrangement for vibration test . 19

Table 1 – Climatic categories – selected values . 13
Table 2 – Creepage and clearance distances . 14
Table 3 – Test group P – Preliminary . 21
Table 4 – Test group AP – Mechanical endurance . 22
Table 5 – Test group BP – Climatic . 23
Table 6 – Test group CP – Corrosion . 24
Table 7 – Test group DP – Moisture . 25
Table 8 – Test group EP – Dynamic stress. 26
Table 9 – Test group FP – Latch and cable stress . 27
Table 10 – Test group GP – Signal integrity . 28

– 4 – IEC 62946-02:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –

Part 02: Detail specification for 8-way, unshielded, free and
fixed high density connectors for data transmission with frequencies
up to 250 MHz and with current carrying capacity up to 1 A

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