IT1-168P/28-30H(03) - HIROSE ELECTRIC

A294

High Speed, Matched-Impedance, Parallel Board-to-board Connector

IT1 Series

■Features

1. Impedance Matching using a 4-Layer Board

The innovative transmission module uses PC boards

with a strip line design of transmission lines, providing

matched impedance of 50 ohms, for standard product.

2. Supports Multiple Connectors per board

Designed with a tolerance of +/- 0.2mm for both the X

and Y-axis. The three-piece structure and the +/- 0.2mm

tolerance allows 3 or more IT1’s to be mounted on a

single board.

3. Customized Board-to-Board Distance

Board-to-board distance can be customized, from 16mm

to 40mm.

Ground lines or additional traces can be added to

support high level, high speed transmission or mixed

power/signal applications.

4. Signal to Ground Ratio

The standard signal-to-ground ratio is 10:2, which makes

reliable matching of the characteristic impedance of each

transmission line. This ratio also can be customized.

5. Contact Reliability

Use of double contact points on each of the contacts

assures highly reliable performance. ■Applications

Routers, servers, base stations and other

telecommunication equipment.

IT1 Series Outline

High-speed matched-impedance parallel board-to-board

connector designed for applications requiring board-to-

board spacing with transmission speeds exceeding

1GHz. The connection system has matched impedance

of 50 ohm or can be customized. Contacts are on 0.5mm

pitch.

4-Layer board

(Impedance matching)

2-Point contact

(0.65) : Wipe

Receptacle

Transmission Module

Receptacle

●Connection Cross-Sectional Diagram

Receptacle (2 required)

Transmission Module

Nov.1.2019Copyright2019HIROSEELECTRICCO.,LTD.AllRightsReserved.

A295

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

Measured at 100V DC

150 V AC/one minute

Measured at 100 mA

Frequency of 10 to 55 Hz, 0.75mm single amplitude, for 10

cycles in each of 3 directions

Acceleration of 490 m/s2, 11 ms duration, sine half-wave

waveform, 3 cycles in each of the 3 axis.

96 hours/40ç/ humidity of 90% to 95%

Temperature: -55ç/+15çto +35ç/+85ç/+15çto +35ç

Duration: 30 /2 to 3 /30 /2 to 3 (Minutes)

5 cycles

20 cycles

Reflow: At the recommended temperature profile

Manual soldering: 350

for 3 seconds

100 M ohms min.

No flashover or insulation breakdown

100 m ohms max.

No electrical discontinuity of 1 μs or more.

No damage, cracks, or parts dislocation.

No electrical discontinuity of 1 μs. min.

No damage, cracks, or parts dislocation

Contact resistance: 110 m ohms max.

Insulation resistance: 100 M ohms min.

No damage, cracks, or parts dislocation

Contact resistance: 110 m ohms max.

Insulation resistance: 100 M ohms min.

No damage, cracks, or parts dislocation

Contact resistance: 110 m ohms max.

No damage, cracks, or parts dislocation.

No deformation of components affecting performance.

Insulation resistance

2. Withstanding voltage

3. Contact resistance

4. Vibration

5. Shock

Humidity

7. Temperature cycle

8. Durability

(insertion/ withdrawal)

Resistance to

Soldering Heat

Rating 0.4 A (Note 1)

50V AC

Operation Temperature

Range

Operation Humidity

Range

Current

rating

Voltage

rating

-55ç to +85ç

Relative humidity 95% max.

(No condensation)

Storage Temperature

Range

Storage Humidity

Range

-10

to +60

(Note 2)

40% to 70% (Note 2)

■Product Specifications

Item Specification Conditions

Note1:

If the connector is going to be used at a current in excess of the 0.4 A, please contact your Sales Representative.

Note2:

The term ”storage” refers to products stored for long period of time prior to mounting and use. Operating Temperature Range

and Humidity range covers non- conducting condition of installed connectors in storage, shipment or during transportation.

Note3:

Information contained in this catalog represents general requirements for this Series. Contact us for the drawings and

specifications for a specific part number shown.

Series name : IT1

Locating Post type

Blank : With Locating Post

A : Without Locating Post

Number of contacts : 168, 252

Connector S : Receptacle Socket

Transmission Plug Module

Lead

SV : Straight SMT

Packaging

Blank : Tray

(25) : Tray(connectors with attached tape

for a vacuum board placement)

Number of ground contacts : 28, 44

Board-to-board Distance

: 19mm,23mm,30mm

IT 1 - *P / *-*H

IT 1 #-*S - SV (* *)

■Material

■Ordering information

1 2 3 4 5 6

1 4 7 8

Part

Insulator

Contacts

Metal fittings

Material Finish Remarks

LCP

Phosphor bronze

Color : Beige

Gold plating

Tin plating

UL94V-0

----------

Receptacles

Transmission Module

Part

Insulator

Board

Material Finish Remarks

PBT

FR-4 Color : Black

Contact portion : Gold plating UL94V-0

----------

Receptacles

Transmission Module

Nov.1.2019Copyright2019HIROSEELECTRICCO.,LTD.AllRightsReserved.

A296

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

Not required for products without Locating Post.

■Receptacles - 168 Contacts

BRecommended PCB mounting pattern

2-(Ø1.5 mm): Locating Post

0.2 ±0.05

60.7 ±0.5

2±0.2

8.8 ±0.5

6 ±0.5( 0.6)

60.7±0.5

(52) (3.55)

20.5

0.5 0.5

1.5 1.5

b1b2

b84

a84

∞168

(=0.5∞41)

0.2 A

0.5 0.5

b 1b 2

a 1

a 2

b 84

a 84

3+0.1

56.9 0

-0.1

61.7 +0.1

3.55 ±0.05

6.6 0

-0.1

9.4 +0.1

0.3 ±0.02

52 ±0.05

1.5 1.5 20.5

20.5

0.06 A

2-Ø1.7±0.05

∞168

( =0.5∞41)

Part Number CL No. Locating Post Type RoHS

IT1-168S-SV

IT1A-168S-SV

641-0002-0

641-0012-4 With Locating Post

Without Locating Post YES

Nov.1.2019Copyright2019HIROSEELECTRICCO.,LTD.AllRightsReserved.

A297

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

■Receptacles - 252 Contacts

BRecommended PCB mounting pattern

)

6±0.5( 0.6 )

C1.5

2±0.2

8.8 ±0.5

0.2 ±0.05

20.5

84.2 ±0.5

( 75.5

1.5 20.5

1.5

20.5

0.5 0.5 b1

b126

a126

2-(Ø1.5 mm): Locating Post

( 3.55 )

84.2 ±0.5

(=0.5∞41)

∞252

(=0.5∞41)

0.2 A

49.5

3+0.1

20.5

20.5 20.5

a 1

a 2

b 126

a 126

80.4 0

-0.1

85.2 +0.1

3.55

6.6 0

-0.1

9.4 +0.1

0.5

0.3 ±0.02

2- Ø1.7 ±0.05

0.5

(=0.5∞41)

( =0.5∞41)

∞252

(=0.5∞41)

0.06 A

0.1 A.B

1.5 1.5

b 1b 2

Part Number CL No. Locating Post Type RoHS

IT1-252S-SV

IT1A-252S-SV

641-0003-3

641-0013-7 With Locating Post

Without Locating Post YES

Not required for products without locating Post.

Nov.1.2019Copyright2019HIROSEELECTRICCO.,LTD.AllRightsReserved.

A298

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

■Transmission Module - 168 Contacts

■Connection Table

168

(4.2)

57±0.5

55±0.3

7.8 ±0.5

a row

b row

8.4 ±0.3 8.4 ±0.3

5.8 ±0.35.8 ±0.3

6.6 ±0.5

Locking Protrusion

(2 Sides) 56±0.3

Mating side

Board Mounting side

Fig. 1

The connection table indicates contact numbers in the mated condition,as illustrated in Fig. 1.

a row

Signal

Ground

α -β

a01 - a84

a02 - a83

a03 - a82

a04 - a81

a05 - a80

a06 - a79

a07 - a78

a08 - a77

a17 - a68

a18 - a67

a19 - a66

a20 - a65

a29 - a56

a30 - a55

a31 - a54

a32 - a53

a41 - a44

a42 - a43

a43 - a42

ıı

Signal

Ground

α -β

a44 - a41

a53 - a32

a54 - a31

a55 - a30

a56 - a29

a65 - a20

a66 - a19

a67 - a18

a68 - a17

a77 - a08

a78 - a07

a79 - a06

a80 - a05

a81 - a04

a82 - a03

a83 - a02

a84 - a01

ıı

b row

Signal

Ground

α -β

b01 - b84

b02 - b83

b03 - b82

b04 - b81

b05 - b80

b06 - b79

b07 - b78

b08 - b77

b17 - b68

b18 - b67

b19 - b66

b20 - b65

b29 - b56

b30 - b55

b31 - b54

b32 - b53

b41 - b44

b42 - b43

b43 - b42

ıı

Signal

Ground

α -β

b44 - b41

b53 - b32

b54 - b31

b55 - b30

b56 - b29

b65 - b20

b66 - b19

b67 - b18

b68 - b17

b77 - b08

b78 - b07

b79 - b06

b80 - b05

b81 - b04

b82 - b03

b83 - b02

b84 - b01

ıı

Part Number

IT1-168P/28-19H

CL No.

641-0192-8

Board-to-board Distance

19mm

18.4

CRoHS

16.6 YES

IT1-168P/28-30H 641-0303-7 30mm 13.9 13.9 17.6

Nov.1.2019Copyright2019HIROSEELECTRICCO.,LTD.AllRightsReserved.

A299

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

■Transmission Module - 252 Contacts

●2-row type

■Connection Table

The connection table indicates contact numbers in the mated condition,as illustrated in Fig. 1.

b row

a row

(4.2)

7.8±0.5

80.5 ±0.5

78.5 ±0.3

79.5 ±0.3

252

10.410.4 ±0.3 ±0.3

10.6 ±0.5 5.8±0.35.8±0.3

Mating side

Board Mounting side

Locking Protrusion

(2 Sides)

a row

Signal

Ground

α -β

a01 - a126

a05 - a122

a06 - a121

a07 - a120

a08 - a119

a17 - a110

a18 - a109

a19 - a108

a20 - a107

a29 - a98

a30 - a97

a31 - a96

a32 - a95

a41 - a86

a42 - a85

a43 - a84

ıı

Signal

Ground

α -β

a44 - a83

a53 - a74

a54 - a73

a55 - a72

a56 - a71

a62 - a65

a63 - a64

a64 - a63

a65 - a62

a71 - a56

a72 - a55

a73 - a54

a74 - a53

a83 - a44

a84 - a43

a85 - a42

ıı

Signal

Ground

α -β

a86 - a41

a95 - a32

a96 - a31

a97 - a30

a98 - a29

a107 - a20

a108 - a19

a109 - a18

a110 - a17

a119 - a08

a120 - a07

a121 - a06

a122 - a05

a126 - a01

ıı

b row

Signal

Ground

α -β

b01 - b126

b05 - b122

b06 - b121

b07 - b120

b08 - b119

b17 - b110

b18 - b109

b19 - b108

b20 - b107

b29 - b98

b30 - b97

b31 - b96

b32 - b95

b41 - b86

b42 - b85

b43 - b84

ıı

Signal

Ground

α -β

b44 - b83

b53 - b74

b54 - b73

b55 - b72

b56 - b71

b62 - b65

b63 - b64

b64 - b63

b65 - b62

b71 - b56

b72 - b55

b73 - b54

b74 - b53

b83 - b44

b84 - b43

b85 - b42

ıı

Signal

Ground

α -β

b86 - b41

b95 - b32

b96 - b31

b97 - b30

b98 - b29

b107 - b20

b108 - b19

b109 - b18

b110 - b17

b119 - b08

b120 - b07

b121 - b06

b122 - b05

b126 - b01

ıı

Fig.1

Part Number

IT1-252P/44-23H

IT1-252P/44-30H

CL No.

641-0231-8

641-0304-0

Board-to-board Distance

23mm

10.4

CRoHS

10.6 YES

30mm 13.9 13.9 17.6

Nov.1.2019Copyright2019HIROSEELECTRICCO.,LTD.AllRightsReserved.

A300

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

BIT1 Series Extraction Tool

Part Number CL No. Remarks RoHS

IT1-PICKER(1)641-1001-3 2-piece Package YES

(Ø2.5)

(6)

(6)(1.25)

(42)

(3)

A301

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

1. System Components .......................................................... A302

¡Receptacles

¡Transmission Module Assembly

¡Extraction Tool

2. Recommended Design Guidelines ................................ A303

2-1 Recommended Solder Land Pattern

2-2 Board-to-Board Spacer Heights

3. Connector Placement ......................................................... A304

3-1 Receptacle Packaging Types

3-2 Receptacle Vacuum Pick-and-Place Areas

3-3 Receptacle Board Placement

3-4 Recommended Reflow Conditions

3-5 Solder Repairs

4. Mating Procedure ................................................................ A307

5. Un-mating of Connectors .................................................. A308

Removal of the Transmission Module from the stationary side.

..A309

7. Precautions When Mounting Multiple Connectors .. A310

¡Allowable Amount of Misalignment

¡Recommended Positional Location

Table of Contents

Installation and Use Instruction Manual

A302

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

BConnector Handling Precautions

1. System components

■Receptacles

¡Contacts

¡Row A and row B contacts are arranged alternately starting

with No.1 in row B. Placement on board is polarized.

¡Metal Fittings

¡Permanently inserted to provide lock with the Transmission

Module and additional solder areas with the PCB.

¡Insulator body.

¡Injection molded single unit provides protection and correct

self-alignment of all components.

■Transmission Module Assembly

¡Each Module has stationary side and a mating/un-mating

side.

¡When mounting multiple connectors, please keep uniform

orientation of the stationary side.

¡Transmission printed circuit boards used in the module are

based on JIS standards and quality standards applicable to

memory modules.

Guide frame

Transmission

boards.

Mating/

un-

mating

side

Stationary

side

Mating/

un-mating

side

(Short)

Stationary

side

(Longer)

Even numbered row: A contacts

Odd numbered row: B contacts

Insulator body

Metal fittings

Receptacles

Transmission

module

assembly

■Extraction Tool

¡Used to release the transmission module from the

stationary receptacle. Extraction Tool

(2 required)

Fully Connected Condition

The interconnection package consists of 3 main sub-assemblies: Two receptacles and the Transmission Module.

The transmission module, held securely by the guide frame has a mating/un-mating side and a stationary side.

Once the stationary side is inserted in the receptacle, it can not be removed without the use of extraction tool.

The mating/un-mating side allows repeated re-insertion of the receptacle on this side only.

A303

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

2. Recommended Design Guidelines

2-1 Solder Land Pattern

When placing the receptacles on the Printed Circuit Boards using automatic mounting equipment or manually, assure that the

correct diameters of the holes (Fig. 1) are through the entire thickness of the board.

SLocating post hole diameterS

The contacts of receptacle assembly are exposed on the bottom surfaces. The exposed areas of the contacts are a distance

of 0.25 mm minimum from the surface of the Printed Circuit Board, on which the receptacle assembly is placed (Fig.2).

Consideration should be taken not to place or assure insulation of conductive traces under the receptacle assemblies.

Refer to the separate drawings for recommended solder land pattern dimensions of the receptacle, and signals and ground

connection diagram of the transmission module.

2-2 Board-to-Board Spacer heights

The two parallel boards connected by the IT1 connectors should be fastened to additional spacers between them.

Fig. 3 indicates the connector height tolerance and the spacer’s height.

When designing the spacer’s height, consideration should be given to the solder paste thickness and any other features,

which may affect the full mating of the connector.

Fig. 3 indicates design dimensions for the 19 mm board-to-board distance.

Automatic placement /(Locating post hole diameter) C dimension: 1.7 mm

Manual placement /(Locating post hole diameter) C dimension: 1.6 mm

/A position accuracy of +

0.03 should be exercised from the

center of the hole to contact Number 84.

Fig. 2 Cross section of IT1 receptacle

Fig. 1 IT1-168S-SV Recommended Solder Land Pattern

(mm)

Fig. 3

(mm)

Contact_A Contact_B

A304

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

3. Connector Placement

3-1 Packaging Types

¡Two types of packaging are available: semi-hard tray and hard tray. Customers may specify a packaging type suitable for

their automatic placement machines.

* Refer to the separate drawings for the detailed dimensions of the trays.

3-2 Automatic placement - Vacuum Pick-and-Place Areas

¡Specify "Vacuum Pick-up Tape Specification".

¡The area and position of the pick-and-place surface are indicated in the diagrams below.

¡Semi-hard tray packaging

168 contacts receptacle: 40 pieces per tray

252 contacts receptacle: 30 pieces per tray

¡Hard tray packaging

168 contacts receptacle: 24 pieces per tray

252 contacts receptacle: 16 pieces per tray

(mm)

A305

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

3-3 Receptacle Board Placement

¡When using automatic placement equipment, verify the packaging type and the Pick-and-place areas.

¡When placing manually, pay attention to the possibility of positional shift. Ref. Fig. 4.

* When placing multiple connectors, to assure positional accuracy, it is advised to use automatic placement equipment.

SPrecautions for Manual PlacementS

The orientation posts serve as a prevention measure to avoid incorrect placement of the receptacle assemblies on the board.

The contact terminals must be placed correctly over the corresponding solder pad as shown on Fig. 4-1.

3-4 Recommended Reflow Conditions

Fig. 4-1 = Correct Fig. 4-2 = Incorrect Fig. 4-3 = Incorrect

A306

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

3-5 Solder Repairs

Assure that flux is not reaching the contact areas of the connector.

Wash the assembly as recommended below.

SCleaning ConditionsS

When using water based cleaning agents (e.g., terpene, and alkali saponifiers), select the cleaning agent based on the

documentation issued by the various manufacturers, which describes its effects on metals and resins. Care should be taken

not to leave moisture on the connectors.

Residual flux or cleaning agent remaining on the connectors when cleaning with organic solvents or water based cleaners

may cause deterioration of the electrical performance. It is important to check that a thorough washing has been performed.

A307

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

4. Mating Procedure

Follow the procedure described below.

Note:¡The transmission module must be fully inserted into receptacle assembly already placed and soldered to a board.

¡The Transmission Module cannot be exposed to heat temperatures of the soldering process.

Step 1

Receptacle Placement on the board –

stationary side

Assure that the orientation posts are aligned

with the holes on the board.

When specifying receptacle assemblies without

the orientation posts exercise extra caution to

assure correct orientation and connection with

the solder pads.

Step 2

Insertion of the Transmission Module

Fully insert the Transmission Module in the

board-installed receptacle assembly.

It is critical that the insertion is done straight

and uniformly.

Step 3

Mating/un-mating

Assure that the receptacle assembly is correctly

aligned with the Transmission Module.

Fully insert the receptacle assembly on the

Transmission Module.

It is critical that the insertion is done straight

and uniformly.

Step 4 Connection completed

A308

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

5. Un-mating of Connectors

Recommended Method

¡Pull uniformly straight up.

Prohibited un-mating Methods

A309

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

6. Removal of the Transmission Module - stationary side

¡Requires use of dedicated extraction tool. Two are required.

Step 1 ¡Fully insert the tools into each end of the receptacle assembly (Fig.

1) assuring that they will be over the hold areas of the Transmission

Module frame. Ref. Fig. 2

Step 2 Pull out the transmission module holding the tools straight.

extraction tool Insertion Area

Fig. 1

Fig. 2

Inappropriate area

Insertion area

A310

IT1 Series●High Speed, Matched-Impedance, Parallel Board-to-board Connector System

7. Precautions When Mounting Multiple Connectors

Note: Observe the requirements as listed in paragraph 7-1 and 7-2.

The mating/un-mating forces will increase with use of multiple assemblies. It is recommended that a dedicated tooling is used for

mating / un-mating of multiple connector assemblies in a single operation.

7-1 Allowable Amount of Misalignment

Maximum allowable misalignment in X and Y directions is ±0.2 mm total.

Refer to the drawings below.

7-2 Recommended Connector Placement

It is recommended to leave min. of 30 mm space between the adjacent connector assemblies.

7-3 Examples of Prohibited Placement Positions

To assure reliability of solder joints and mating/ un-mating without damage,

DO NOT PLACE MULTIPLE CONNECTORS as illustrated below.

Length Orientation X1-X2=+

0.2 Width Orientation Y1-Y2=+

0.2