Each C Style MicroPak Enclosure base has at least one set of tracks for mounting printed circuit boards. These tracks provide an efficient and secure way to hold your board during assembly and testing and in the completed instrument.
If you have the flexibility to design to MicroPak standards, you will achieve significant cost effectiveness both in terms of enclosure cost and assembly cost. The recommended board widths are 2.51 in (63.8 mm), 3.89 in (98.8 mm), 3.94 in (100 mm Eurocard standard), 5.28 in (134.1 mm) and 7.00 in (177.8 mm). The recommended length is the same length as the cover and base.
Shorter boards may be secured by fastening to a single standoff located near one end of the board (being sure that no components are located in such a way as to impede the board from being slid into place). The same technique can be used to electrically ground a board to the base.
Narrower boards can be mounted either in one track with captive standoffs supporting the opposite side, or entirely on standoffs. On Q, T, and W enclosures, self-clinching standoffs .250 in (6.35 mm) long will support the board at the same height as the standard track.
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