For latest revision and Regional Customer Service,
visit our website at www.te.com.
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114-32120
When mating, alignment features help align contacts prior to engagement of the connectors. Mating connector
keys fit into the mating connector key slots, which have a guide feature. In addition, guides are available and
should be used with the connectors to provide error-free mating and prevent damage to the connector
housings and contacts.
The guide pin and female guide module are designed to be installed onto the pc board. Guides are also
recommended for multi-connector, large and heavy daughtercard applications, and conditions where the
misalignment tolerances cannot be met. The guide pin is available with internal or external threading.
2. REFERENCE MATERIAL
2.1. Revision Summary
Revisions to this application specification include:
Update minimum depth for counterboring in Figure 4.
2.2. Customer Assistance
Reference Product Base Part Numbers 2187320 (PiR CP receptacle), 2274564 (PiR CP header assembly),
2198174 (PiC DPO receptacle), and 2274518 (PiR DPO header assembly) and Product Code M284 are
representative of 3.9-mm pitch 85-ohm and 100-ohm CP and DPO STRADA Whisper connector system. Use of
these numbers will identify the product line and help you to obtain product and tooling information. Such
information can be obtained through a local Representative, by visiting our website at www.te.com, or by calling
PRODUCT INFORMATION or the TOOLING ASSISTANCE CENTER at the numbers at the bottom of page 1.
2.3. Drawings
Customer Drawings for product part numbers are available from the service network. If there is a conflict
between the information contained in the Customer Drawings and this specification or with any other technical
documentation supplied, the information contained in the Customer Drawings takes priority.
2.4. Specifications
Product Specification
108-32112
provides expected product performance and test results.
3. REQUIREMENTS
3.1. Storage
A. Shelf Life
The product should remain in the shipping containers until ready for use to prevent deformation to
components. The product should be used on a first in, first out basis to avoid storage contamination that
could adversely affect performance.
B. Chemical Exposure
Do not store product near any chemical listed below as they may cause stress corrosion cracking in the
material.
Alkalies
Amines
Ammonia
Carbonates
Citrates
Nitrites
Phosphates Citrates
Sulfur Nitrites
Sulfur Compounds
Tartrates
3.2. Material
The housings and chicklets are molded of high-temperature rated (UL 94V-0) thermoplastic. The contacts are
made of copper alloy and plated at the contact interface with precious metal. All contacts have a nickel
underplate and tin plated press-fit leads. Refer to the specific connector customer drawing for details.
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114-32120
3.3. Pin Lengths
The pin length of the ground and signal contacts is given in Figure 2.
Note:
Contact TE for other pin lengths
Figure 2
3.4. PC Board
A. Material and Thickness
The pc board material shall be glass epoxy (for example, FR-4).
For connector compliant pins, the daughtercard and backplane must have a minimum thickness of 1.25.
For pc boards with a thickness less than 2, a pc board support must be positioned directly under the
connector area.
To accommodate an internally-threaded guide pin, the pc board must have a thickness equal to or greater
than the thread length of the guide pin. To accommodate an externally-threaded guide pin, the pc board
must have a thickness less than the thread length of the guide pin. A pc board support must be positioned
directly under the connector area.
When using guide modules on a pc board with a thickness less than 4.5, a pc board support must be
positioned directly under the connector area.
NOTE
All pc board supports must meet the requirements described in Section 5.
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114-32120
B. Optional Housing Hold-Down
DPO Adapter Assembly
PiR Receptacle omitted for clarity
Optional housing
hold-down feature 2x
per housing (typ)
Figure 3
PC board
Attachment Screw
TE p/n 2304469-1
PC board
For connectors with optional adapter housing hold-down features (Figure 3), the pc board attachment
screw must be installed with a torque value of 0.113
–
0.225 Nm to ensure proper clamp load and prevent
a stripped screw head. Also, the screw must have 6.50 mm minimum engagement into the hold-down
feature to ensure proper clamp load. TE screw p/n 2304469-1 will cover the typical range of pc board
thicknesses up to 5.50 mm. A longer screw should be chosen for use with pc boards thicker than 5.50
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