VHDM® Stacker FAQs
Electrical
Mechanical
Electrical
What is the current rating
of the signal pins?
1 amp
What is the current
rating of the shields?
2 amps
What is the contact resistance
between the compliant pin and the plated-through hole?
1 milliohm, maximum
What are the power options
for the VHDM Stacker?
Signal wafers can be used for power as well as a power wafer
that is rated at 8 amps per wafer
Mechanical
What is the per pin insertion/mating
force?
40 grams per signal and 40 grams per each beam on the backplane
shield
What is the normal force per
contact beam?
50 grams minimum per beam, end of life
How much wipe under load do I get with
high-speed?
1.05mm minimum with 4.25mm signal; 3mm minimum with 6.25mm
shield
What configurations are available
for the VHDM Stacker connector?
10 and 25 position models with stack heights between 18 and
28mm that mate with the 10 and 25 position backplane modules.
Do I have to use end caps or
guide pins in my configuration?
End caps can be used within the 10 and 25 position modules
to create custom configurations. The module insulators provide
guidance but added guidance can be included using a stand
alone guide pin.
Can the VHDM Stacker
connector be aligned end-to-end to create longer configurations?
Yes, the insulators are designed to be stacked end to end.
Note that 3mm is lost between modules. Please consult the
VHDM Stacker technical bulletins
for quantity of connectors that can be aligned end-to-end.
What is the minimum card-slot
pitch for the VHDM Stacker connector?
Standard configuration is a 6-row module at 18mm.
What are the minimum and maximum
printed circuit board thickness required for Amphenol's VHDM
connectors?
0.070" (1,78mm) minimum. There really is no stated maximum
since the board fabricator is restricted by the manufacturing
aspect ratio for the daughtercard & backplane.
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