The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information.
All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative.
High Speed, Matched-Impedance, Parallel Board-to-board Connector
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.
Transmission Module
●
Connection Cross-Sectional Diagram
■
Features
1. Impedance Matching using a 4-Layer Board
(0.95) : Wipe
The innovative transmission module uses PC boards
with a strip line design of transmission lines, providing
matched impedance of 50 ohms, for standard product.
Receptacle
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.
2-Point contact
4-Layer board
(Impedance matching)
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.
Transmission Module
(1.2): Wipe
2-Point contact
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.
Receptacle
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.
A294
The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information.
All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status
Speed, Matched-Impedance, Parallel Board-to-board
your Hirose sales representative.
IT1 Series●High
on the Hirose website RoHS search at www.hirose-connectors.com, or contact
Connector System
■Product
Specifications
Current
rating
0.4 A (Note 1)
Operation Temperature
Range
-55ç to
+
85ç
Storage Temperature
-10
ç
to
+
60
ç
(Note 2)
Range
Storage Humidity
Range
40% to 70% (Note 2)
Rating
Voltage
rating
50V AC
Operation Humidity
Relative humidity 95% max.
Range
(No condensation)
Item
Specification
Measured at 100V DC
150 V AC/one minute
Measured at 100 mA
Conditions
1. Insulation resistance 100 M ohms min.
2. Withstanding voltage No flashover or insulation breakdown
3. Contact resistance
100 m ohms max.
4. Vibration
5. Shock
No electrical discontinuity of 1
μ
s or more.
No damage, cracks, or parts dislocation.
No electrical discontinuity of 1
μ
s. 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
Frequency of 10 to 55 Hz, 0.75mm single amplitude, for 10
cycles in each of 3 directions
Acceleration of 490 m/s
2
, 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
/
+15ç to +35ç
/
+85ç
/
+15ç to +35ç
Duration: 30
/
2 to 3
/
30
/
2 to 3 (Minutes)
5 cycles
20 cycles
Reflow: At the recommended temperature profile
Manual soldering: 350ç for 3 seconds
6. Humidity
7. Temperature cycle
Contact resistance: 110 m ohms max.
8. Durability
(insertion/ withdrawal) No damage, cracks, or parts dislocation.
9. Resistance to
9.
Soldering Heat
No deformation of components affecting performance.
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.
■Material
Receptacles
Part
Insulator
Contacts
Metal fittings
Material
LCP
Phosphor bronze
Phosphor bronze
Finish
Color : Beige
Gold plating
Tin plating
Remarks
UL94V-0
----------
----------
Transmission Module
Part
Insulator
Board
Material
PBT
FR-4
Finish
Color : Black
Contact portion : Gold plating
Remarks
UL94V-0
----------
■Ordering
information
Receptacles
IT 1
#
-
*
S - SV (
* *
)
1
2
3
4
5
6
Transmission Module
IT 1 -
*
P /
*
-
*H
1
1
Series name
2
Locating Post type Blank
3
4
7
5
Lead
SV : Straight SMT
6
Packaging
Blank : Tray
(25) : Tray(connectors with attached tape
for a vacuum board placement)
7
Number of ground contacts : 28, 44
8
Board-to-board Distance: 19mm,23mm,30mm
8
: IT1
: With Locating Post
A
: Without Locating Post
: 168, 252
3
Number of contacts
4
Connector
S : Receptacle Socket
P : Transmission Plug Module
A295
The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information.
All non-RoHS products have been discontinued,
Matched-Impedance, Parallel Board-to-board Connector System
at www.hirose-connectors.com, or contact your Hirose sales representative.
IT1 Series●High Speed,
or will be discontinued soon. Please check the products status on the Hirose website RoHS search
■Receptacles
- 168 Contacts
20.5 (=0.5∞41)
0.2 ±0.05
b84
A
1
a1
1.5
0.5
1.5
0.5
20.5 (=0.5∞41)
b2
b1
8.8 ±0.5
( 0.6)
6 ±0.5
2 ±0.2
(3.55)
2-(Ø1.5 mm): Locating Post
b1
∞168
0.2 A
a84
A
a2
a1
60.7 ±0.5
(52)
60.7 ±0.5
Part Number
IT1-168S-SV
IT1A-168S-SV
CL No.
641-0002-0
641-0012-4
Locating Post Type
With Locating Post
Without Locating Post
RoHS
YES
BRecommended
PCB mounting pattern
61.7
+0.1
0
0
56.9
-0.1
52 ±0.05
20.5 ( =0.5∞41)
0.3 ±0.02
b 84
∞168
1.5
0.5
1.5
0.5
20.5 ( =0.5∞41)
3.55 ±0.05
0.06 A
b2
b1
6.6
-0.1
3
+0.1
0
a 84
A
a2
a1
1
2-Ø1.7±
0.05
1
Not required for products without Locating Post.
A296
9.4
+0.1
0
0
The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information.
All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status
Speed, Matched-Impedance, Parallel Board-to-board
your Hirose sales representative.
IT1 Series●High
on the Hirose website RoHS search at www.hirose-connectors.com, or contact
Connector System
■Receptacles
- 252 Contacts
20.5 (=0.5∞41)
b126
A
3
20.5 (=0.5∞41) 1.5
0.5
1.5
0.5
20.5 (=0.5∞41)
b2
b1
C
b1
1.
5
a1
0.2 ±0.05 ∞252
0.2 A
a126
a2
a1
84.2 ±0.5
( 75.5
)
84.2 ±0.5
( 0.6 )
6 ±0.5
2 ±0.2
A
8.8 ±0.5
( 3.55 )
2-(Ø1.5 mm): Locating Post
Part Number
IT1-252S-SV
IT1A-252S-SV
CL No.
641-0003-3
641-0013-7
Locating Post Type
With Locating Post
Without Locating Post
RoHS
YES
BRecommended
PCB mounting pattern
85.2
80.4
49.5
20.5 ( =0.5∞41)
0.3 ±0.02
∞
252
0.06 A
b 126
B
3
+0.1
0
3
20.5 (=0.5∞41) 1.5
0.5
.
1.5
0.5
3.55
b2
b1
+0.1
0
0
-0.1
26
20.5
(=0.5∞41)
6.6
-0.1
a 126
A
a2
a1
1
2- Ø1.7 ±0.05
9.4
0.1 A.B
1
Not required for products without locating Post.
+0.1
0
0
A297
The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information.
All non-RoHS products have been discontinued,
Matched-Impedance, Parallel Board-to-board Connector System
at www.hirose-connectors.com, or contact your Hirose sales representative.
IT1 Series●High Speed,
or will be discontinued soon. Please check the products status on the Hirose website RoHS search
■Transmission
Module - 168 Contacts
b row
7.8 ±0.5
a row
(4.2)
5.8 ±0.3
168
A
1
1
57±0.5
55±0.3
Mating side
8.4 ±0.3 8.4 ±0.3
19
Board Mounting side
Locking Protrusion
(2 Sides)
56±0.3
Part Number
IT1-168P/28-19H
IT1-168P/28-30H
CL No.
641-0192-8
641-0303-7
Board-to-board Distance
19mm
30mm
A
18.4
13.9
B
18.4
13.9
C
16.6
17.6
5.8 ±0.3
6.6 ±0.5
RoHS
YES
■Connection
Table
The connection table indicates contact numbers in the mated condition,as illustrated in Fig. 1.
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