646442-1 TE Connectivity, 646442-1 Datasheet - Page 31

• Manufacturer Part Number: 646442-1
• Description: Conn Hard Metric RCP 176 POS 2mm Press Fit RA Thru-Hole
• Manufacturer: TE Connectivity
• Type: Hard Metricr
• Series: Z-PACKr

Specifications of 646442-1

• Pitch: 2 mm
• Number Of Rows: 8
• Number Of Contacts: 176
• Termination Method: Press Fit
• Mounting: Through Hole
• Contact Plating: Gold Over Nickel
• Connector Type: Hard Metric (HM)
• Row Pitch: 2mm
• Pitch Spacing: 2mm
• No. Of Contacts: 176
• Gender: Receptacle
• Contact Termination: Right Angle Press Fit
• No. Of Rows: 8
• Rohs Compliant: Yes
• Product Type: Female
• Number Of Positions / Contacts: 176
• Termination Style: Press Fit
• Housing Material: Polyester, Glass Filled
• Contact Material: Phosphor Bronze
• Mounting Style: Through Hole
• Pcb Mounting Orientation: Right Angle
• Board Mount: Free Board
• Module Length (mm [in]): 48.00 [1.891]
• Crosstalk Version: Standard
• Amp Standard Option Number: 1
• Shielded: No
• Interface Type: 2mm HM
• Termination End Plating: Tin-Lead over Nickel
• Number Of Positions: 176
• Grounding Contact: Without
• Rows Loaded: A, B, E, F, D, C, G, H
• Contact Configuration: ACTION PIN Post, Signal
• Feedthrough Post Length (mm [in]): 3.30 [0.130]
• Compactpci: Yes
• Contact Plating, Mating Area, Material: Gold (30)
• Contact Base Material: Phosphor Bronze
• Connector Style: Receptacle
• Mating Alignment: With
• Mating Alignment Type: Multi-Purpose Center
• Housing Color: Gray
• Ul Flammability Rating: UL 94V-0
• Rohs/elv Compliance: RoHS compliant, ELV compliant
• Lead Free Solder Processes: Not relevant for lead free process
• Rohs/elv Compliance History: Always was RoHS compliant
• Lead Free Status / Rohs Status: Details

Spacer Selection
For midplane arrangements, it is gener-
ally a requirement to have the same
contact sequencing on the front and rear
of the backplane.
This can be achieved using the chart
below. A simple solution would be to
select a spacer such that the combined
backplane and spacer thickness have a
maximum thickness of 4.7 [.185] using
pins having the same mating level front
and rear (see page 66).
If this is not possible, then sequenced
mating can still be achieved using other
pin versions, with either longer or
shorter tail lengths according to the
backplane thickness, but three mating
levels will not be achievable.
The following limits of exposed post
length should be adhered to:
Example
Backplane thickness = 3.0 [.118] and
three levels of mating are required.
Backplane thickness tolerances are gen-
erally +/-10%, giving a maximum value
of 3.3 [.130].
From the chart, three mating levels are
achieved on the line where b + t = 4.7
[.185], and the pins can be selected
from K, L or M for post length 5.3
[.209], N, P, or Q for post length 6.8
[.268] and R, S or T for post length 8.3
[.327], dependent on the front pin length
required. Note that posts longer than
6.8 [.268] cannot be mated to row b on
right angle receptacles See page 66.
If b + t = 4.7 [.185] and the backplane
thickness b = 3.3 [.118], required spacer
t must be 1.4 [.055] thick. Select the
spacer which is this thickness or the
next thinner one. The next value below
this is 1.3 [.051].
With minimum backplane thickness of
2.7 [.106] and spacer of 1.3 [.051], b + t
min. is 4.0 [.157], which satisfies the
minimum value conditions.
Referring to page 30, the required
spacer for an A type shroud would be
part number 106457-4.
Catalog 65911
Revised 7-05
www.tycoelectronics.com
Minimum 5.3 [.209]
Maximum 8.3 [.327] except post
which mates with right angle female
connector row b, which must be 6.8
[.268] max.
These dimensions are different from
those given elsewhere in this catalog
because they allow for component
tolerances in deriving the resultant
post length.
Backplane tolerances are not included.
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
AMP Z-PACK 2mm HM Hard Metric
Interconnection System
Spacer Selection
Ideal Spacer/Board Combinations
Thickness (B)
PC Board
1.5 [.059]
1.7 [.067]
1.9 [.075]
2.1 [.083]
2.3 [.091]
2.8 [.110]
3.0 [.118]
3.2 [.126]
3.4 [.134]
3.6 [.142]
3.8 [.150]
4.3 [.169]
4.5 [.177]
4.7 [.185]
4.9 [.193]
5.1 [.201]
5.3 [.209]
5.8 [.228]
6.0 [.236]
6.2 [.244]
6.4 [.252]
6.6 [.260]
6.8 [.268]
7.0 [.275]
reference purposes only.
Dimensions are shown for
Specifications subject
to change.
Contact Tail
13.0 [.512]
14.5 [.571]
13.0 [.512]
14.5 [.571]
13.0 [.512]
14.5 [.571]
13.0 [.512]
14.5 [.571]
13.0 [.512]
14.5 [.571]
13.0 [.512]
14.5 [.571]
16.0 [.630]
13.0 [.512]
14.5 [.571]
16.0 [.630]
13.0 [.512]
14.5 [.571]
16.0 [.630]
13.0 [.512]
14.5 [.571]
16.0 [.630]
13.0 [.512]
14.5 [.571]
16.0 [.630]
13.0 [.512]
14.5 [.571]
16.0 [.630]
14.5 [.571]
16.0 [.630]
14.5 [.571]
16.0 [.630]
14.5 [.571]
16.0 [.630]
14.5 [.571]
16.0 [.630]
14.5 [.571]
16.0 [.630]
14.5 [.571]
16.0 [.630]
16.0 [.630]
16.0 [.630]
16.0 [.630]
16.0 [.630]
16.0 [.630]
16.0 [.630]
16.0 [.630]
Length
Front
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-5-729-0425
Backplane
Thickness (T)
B
1.7 [.067]
1.7 [.067]
1.5 [.059]
1.5 [.059]
1.3 [.051]
1.3 [.051]
1.1 [.043]
1.1 [.043]
0.9 [.035]
0.9 [.035]
1.9 [.075]
1.9 [.075]
1.9 [.075]
1.7 [.067]
1.7 [.067]
1.7 [.067]
1.5 [.059]
1.5 [.059]
1.5 [.059]
1.3 [.051]
1.3 [.051]
1.3 [.051]
1.1 [.043]
1.1 [.043]
1.1 [.043]
0.9 [.035]
0.9 [.035]
0.9 [.035]
1.9 [.075]
1.9 [.075]
1.7 [.067]
1.7 [.067]
1.5 [.059]
1.5 [.059]
1.3 [.051]
1.3 [.051]
1.1 [.043]
1.1 [.043]
0.9 [.035]
0.9 [.035]
1.9 [.075]
1.7 [.067]
1.5 [.059]
1.3 [.051]
1.1 [.043]
0.9 [.035]
0.7 [.027]
Spacer
Spacer
T
Posts Lengths
Rear
Feedthrough
1 2 3
Mating
Level
South America: 55-11-3611-1514
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-141-810-8967
2
3
3
3
2
3
2
3
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
1
1
1
1
6.85 [.270]
8.35 [.329]
6.85 [.270]
8.35 [.329]
6.85 [.270]
8.35 [.329]
6.85 [.270]
8.35 [.329]
6.85 [.270]
8.35 [.329]
5.35 [.211]
6.85 [.270]
8.35 [.329]
5.35 [.211]
6.85 [.270]
8.35 [.329]
5.35 [.211]
6.85 [.270]
8.35 [.329]
5.35 [.211]
6.85 [.270]
8.35 [.329]
5.35 [.211]
6.85 [.270]
8.35 [.329]
5.35 [.211]
6.85 [.270]
8.35 [.329]
5.35 [.211]
6.85 [.270]
5.35 [.211]
6.85 [.270]
5.35 [.211]
6.85 [.270]
5.35 [.211]
6.85 [.270]
5.35 [.211]
6.85 [.270]
5.35 [.211]
6.85 [.270]
5.35 [.211]
5.35 [.211]
5.35 [.211]
5.35 [.211]
5.35 [.211]
5.35 [.211]
5.35 [.211]
Length
Pin
31