Toradex Apalis Series - 4.5 Connector and MXM SnapLock Land Pattern Requirements

Apalis Carrier Board Design Guide
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Figure 73: Module dimension bottom side (dimensions in mm)
4.5 Connector and MXM SnapLock Land Pattern Requirements
The following figure shows the dimensions of the required land pattern for the standoffs and the
MXM SnapLock connector. A carrier board does not need to feature both methods for fixing the
module (SnapLock and spacers with screws), but must implement one of them. The pad and hole
sizes for the standoffs depends on the assembled parts. Contact the supplier of the standoff in
order to get the land pattern requirements.
Figure 74: SnapLock and standoff land pattern (dimensions in mm)
The proposed land pattern of the MXM3 module connector is slightly different form the one that
can be found in the datasheet of the connector. The reason is that the Apalis module standard
does not combine power supply pins to large pads. In addition, the pin numbering is different.
25
6
37.50
41
2.20
2.54
1.30
4
.
7
0
6
.
5
0
1
.
1
0
1
.
6
0
1
.
6
0
1
.
1
0
75
51
37.50
16
4.80
3.40
41