3 COM Express™ Module sizes
The PCB size for the nano module is defined as 55mm x 84mm.
The holes shown in this drawing are intended for mounting the module /
Figure - Small Form Factor nano
| 8 |
51 | 55 |
| |
4 | COM Express™ Type 1 |
| |
| 4 |
| 80 |
Holes Compatible to COM Express™
All dimensions are shown in millimetres. Tolerances should be ± 0.25mm [±0.010"], unless noted otherwise. The tolerances on the module connector locating peg holes (dimensions [16.50, 6.00]) should be ± 0.10mm [±0.004"].
The 220 pin connector shall be mounted on the backside of the PCB and is seen “through” the board in this view. The X mounting holes shown should use 6mm diameter pads and should have 2.7mm plated holes, for use with 2.5mm hardware. The pads should be tied to the PCB ground plane.
Copyright © COM Express™ Extension
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Specification Rev 013