IT3M2-180P-28H(03) Hirose Electric Co Ltd, IT3M2-180P-28H(03) Datasheet - Page 4

• Manufacturer Part Number: IT3M2-180P-28H(03)
• Description: CONN INTERPOSER 180POS 28MM
• Manufacturer: Hirose Electric Co Ltd
• Series: IT3r

Specifications of IT3M2-180P-28H(03)

• Pitch: 0.068" (1.75mm)
• Connector Type: Interposer
• Number Of Positions: 180
• Number Of Rows: 36
• Mounting Type: Stacking
• Features: Locking
• Contact Finish: Gold
• Contact Finish Thickness: 30µin (0.76µm)
• Mated Stacking Heights: 15mm ~ 40mm
• Product Type: Receptacles
• Mounting Style: SMD/SMT
• Mounting Angle: Vertical
• Number Of Positions / Contacts: 180
• Housing Material: Liquid Crystal Polymer (LCP)
• Contact Material: Copper Alloy
• Contact Plating: Gold
• Voltage Rating: 50 V
• Current Rating: 1 A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: H11780 - CONN RCPT MOUNT SIDE 180POS SMDH11779 - CONN RCPT MATE SIDE 180POS SMD
• Height Above Board: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: *IT3M2-180P-28H(03); H11801

4
IT3 Series High-Speed(10
Pin assignment
Impedance profile at 60ps rise time (20-80%)
Differential propagation delay
For the fully-populated pin assignment, adjacent pins are grouped into differential pairs as shown in the
figures below. In the following data, one victim pair and eight aggressor pairs are included.
The impedance profiles (of connector only) for the center pair are shown below. The IT3 receptacles are
designed with higher impedance to offset the via’s low impedance.
Signal Integrity
Stacking Height (mm)
115
110
105
100
95
0
Delay (ps)
200
17mm Height
400
Time (ps)
Mating receptacle side
7
4
1
+
Gbps) BGA Mezzanine Connectors
600
Signal
800
8
5
2
S11
101.05
1000
17
9
6
3
Ground
115
110
105
100
95
0
200
25mm Height
400
146.69
Time (ps)
25
Victim pair
600
800
S11
Mounting receptacle side
1000
16
13
10
188.48
115
110
105
100
95
32
0
17
14
11
Aggressor pair
200
32mm Height
18
15
12
400
Time (ps)
600
800
S11
1000