Avnet ROHM Semiconductor Посібник користувача - Сторінка 7
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Along with meeting these geometry requirements, headers J1, J2, and J3 are placed on the
bottom of the board according to the definition below:
These locations are based on a topside view looking through the board. The headers are
placed on the bottom. J3 is measured to the center of the connector. The mounting holes are
plated through holes with a 125mil diameter. The mounting holes are not electrically connected
on the module.
Pin 1 locations for J1, J2 and J3 are illustrated below in Figure 2. The view is looking down on
the board with the connectors facing up.
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Max Board Width
Max Board Length
Clearance Between Mated Boards
(power module and baseboard)
Figure 1 – Mechanical Header and Mounting Hole Locations
Table 5
7 of 8
3.5"
5.5"
0.45"
Rev A 1.0
06/05/2013