IEC 61076-4-108:2002

Connectors for electronic equipment - Part 4-108: Printed board connectors with assessed quality - Detail specification for cable-to-board connectors, with a modular pitch of 25 mm and integrated shielding function, applicable for transverse packing density of 15 mm, having a basic grid of 2,5 mm in accordance with IEC 60917-1

This publication also bears the number QC 480301XX0009 which is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ).

General Information

• Status: Published
• Publication Date: 13-Feb-2002
• 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: 31-Mar-2002
• Completion Date: 14-Feb-2002

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
61076-4-108
QC 480301XX0009
First edition
2002-02
Connectors for electronic equipment –
Part 4-108:
Printed board connectors with assessed quality –
Detail specification for cable-to-board connectors,
with a modular pitch of 25 mm and integrated
shielding function, applicable for transverse
packing density of 15 mm, having a basic grid
of 2,5 mm in accordance with IEC 60917-1
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
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edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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INTERNATIONAL IEC
STANDARD
61076-4-108
QC 480301XX0009
First edition
2002-02
Connectors for electronic equipment –
Part 4-108:
Printed board connectors with assessed quality –
Detail specification for cable-to-board connectors,
with a modular pitch of 25 mm and integrated
shielding function, applicable for transverse
packing density of 15 mm, having a basic grid
of 2,5 mm in accordance with IEC 60917-1
 IEC 2002  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
XB
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 61076-4-108  IEC:2002(E)
CONTENTS
FOREWORD.5
1 General data.8
1.1 Recommended method of mounting.8
1.1.1 Maximum number of contacts .9
1.2 Ratings and characteristics.11
1.3 Normative references .11
1.4 Marking .12
1.5 IEC type designation.13
1.6 Ordering information.13
2 Technical information.14
2.1 Definitions .14
2.1.1 Mechanical features.14
2.1.2 Contacts and terminations.14
2.1.3 Engagement sequence .14
2.1.4 Mechanical coding, locking .15
2.2 Surveys of styles and variants.15
2.2.1 Styles of connectors.15
2.2.2 Survey of termination variants .20
2.3 Information on application.21
2.3.1 Connector pairs .21
2.3.2 Fixed board connectors.22
2.3.3 Free cable connectors .23
2.3.4 Accessories .23
2.3.5 Shielding and grounding.24
2.3.6 Basic styles of the connections .25
2.4 Survey of contact arrangements.25
3 Dimensional information .26
3.1 General .26
3.2 Isometric view and common features .27
3.2.1 Common features .28
3.2.2 Reference system .28
3.2.3 Height dimensions .29
3.2.4 Width dimensions .30
3.2.5 Depth dimensions .31
3.3 Mating information .31
3.3.1 Engaging direction .31
3.3.2 Perpendicular to engaging direction .31
3.3.3 Inclination .31
3.4 Fixed board connectors .32
3.4.1 Dimensions of board connectors .32
3.4.2 Dimensions of male contacts .39

61076-4-108 © IEC:2002(E) – 3 –
3.5 Free cable connectors .41
3.5.1 Dimensions of cable connectors.41
3.5.2 Dimensions of female contacts.45
3.6 Accessories.46
3.6.1 Coding devices .46
3.6.2 Shielding / ground contact.47
3.7 Mounting information for fixed board connectors .48
3.7.1 Hole pattern on backplane .48
3.7.2 Hole pattern on printed board (front) .49
3.8 Mounting information for free cable connectors .49
3.9 Gauges .50
3.9.1 Sizing and retention force gauges .50
3.9.2 Test gauge for shield / ground contact.50
4 Characteristics.51
4.1 Climatic categories .51
4.2 Electrical .51
4.2.1 Creepage and clearance distances.51
4.2.2 Voltage proof .51
4.2.3 Current carrying capacity .52
4.2.4 Initial contact resistance .52
4.2.5 Initial insulation resistance .52
4.3 Mechanical .53
4.3.1 Mechanical operation .53
4.3.2 Engaging and separating forces .53
4.3.3 Contact retention in insert .53
4.3.4 Static load, transverse .53
4.3.5 Withdrawal force with gauge .53
4.3.6 Vibration (sinusoidal) .54
4.3.7 Shock .54
4.3.8 Polarizing method .54
4.3.9 Mechanical coding .54
4.3.10 Latching force in male connector body .55
4.3.11 Cable clamp resistance to cable rotation .55
4.3.12 Cable connector drop test .55
4.4 Electromagnetic compatibility (EMC) .55
4.4.1 Shielding effectiveness .55
5 Test schedule .56
5.1 General .56
5.1.1 Arrangement for contact resistance measurement.57
5.1.2 Arrangement for dynamic stress tests .57
5.1.3 Arrangement for testing static load, transverse.58
5.1.4 Arrangement for testing insulation resistance, voltage proof and
polarization voltage.59
5.1.5 Arrangement for flammability test.59
5.2 Test schedule tables.60
5.2.1 Group P – Preliminary.60
5.2.2 Group AP – Dynamic / Climatic .61
5.2.3 Group BP – Mechanical endurance .64

– 4 – 61076-4-108  IEC:2002(E)
5.2.4 Group CP – Moisture .65
5.2.5 Group DP – Electrical load .65
5.2.6 Group EP – Mechanical resistivity .66
5.2.7 Group FP – Chemical resistivity .67
5.2.8 Group GP – Connections .67
5.2.9 Group HP – Electromagnetic compatibility.67
6 Quality assessment procedures .67
6.1 Qualification approval testing .67
6.1.1 Method 1 .67
6.1.2 Method 2 .67
6.2 Quality conformance inspection .68
6.2.1 Lot-by-
...