IT3 Connector System DESIGN NOTES

Document Number: ETAD-F0347 Revision 1.00

IT3@hirose.com

Hirose IT3 ™

Connector System

Design Notes

Winner of 2009

SMT

Vision Award

Jan.1.2022Copyright2022HIROSEELECTRICCO.,LTD.AllRightsReserved.

IT3 Connector System ��TABLE OF CONTENTS

Document Number: ETAD-F0347 Revision 1.00

IT3@hirose.com

Page i

Section Title Page

1.0 Introduction 1

1.1

Purpose 1

1.2

Scope 1

1.3

Application and Interpretation 2

2.0 General Information 3

2.1

Component Weights 4

2.2

Part Number Designation 7

2.3

General Dimensions 10

3.0 Operating Characteristics 11

3.1

Material 11

3.2

Electrical 12

3.3

Mechanical 13 – 14

3.4

Environmental 15

3.5

BGA Reliability 16

4.0 Signal Integrity 17

4.1

Overview 17 – 18

4.2

20Gbps solution 19

4.3

Differential / 25mm height 20 – 27

4.4

Single-ended / 25mm height 27 – 33

4.5

Differential / 17, 26, 32mm height 34 – 35

4.6

Single-ended / 17, 26, 32mm height 36 – 37

4.7

Propagation Delay 38

5.0 PWB Design 39

5.1

Component Footprint 40 – 48

5.2

Multi-Connector Systems 49

5.3

Spacers 50 – 51

5.4

Clearance Between Connectors 52 – 54

5.5

Interposer Direction 55

5.6

Alignment Tolerances 56 – 57

6.0 Assembly Process 58

6.1

Overall Assembly Process 58 – 59

6.2

Interposer Installation 60 – 62

6.3

Overall Disassembly Process 63 – 64

6.4

Interposer removal 65 – 67

7.0 Technical Document Library 68

7.1

Technical Data 68

7.2

Technical Document 68