User manual

Advantech SOM-Express Design Guide
Chapter 7 Carrier Board Mechanical Design 99
A source for the individual 8mm stack height 220-piin plug is AMP / Tyco 3-1318491-
6 0.5mm pitch Free Height 220 pin 8H Plug, or equivalent, AMP / Tyco 8-1318491-6
0.5mm pitch Free Height 220 pin 8H Plug, or equivalent (same as previous part, but
with anti-wicking solution applied)
A source for the combined 8mm stack height 440-pin plug ( composed of 2 pieces of
the 220 pin plug held by a carrier ) is: AMP / Tyco 3-5353652-6 0.5mm pitch Free
Height 440 pin 8H Plug, or equivalent.
Note: the part number above shown with a leading ‘8’ has an anti-wicking solution
applied that may help in processing with an aggressive flux. The other versions of the
parts may also be made available with this solution by the vendor. The Carrier Board
connector is a plug by virtue of the vendor’s technical definition of a plug, and to
some users it looks like a receptacle.
Figure 7-3: SOM-Express Carrier Board Plug (8mm Version)
7.4 SOM Express Connector PCB Pattern
Figure 7-4: SOM-Express Connector PCB Pattern