Article | REF: E3342 V2

Design and manufacture of rigid printed circuit boards

Author: Eric CADALEN

Publication date: November 10, 2013, Review date: January 5, 2021

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3. Design parameters

3.1 Layout elements

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3.1.1 Drilling grid

When inserted and soldered components, e.g. wave soldered, are to be installed on a printed circuit board, the minimum hole grid generally adopted is 2.54 mm, which corresponds exactly to 0.1 in. In fact, the pitch of the output pins on components of this type is only 2.54 mm.

With the widespread use of surface-mounted components, the drilling grid can be significantly reduced. However, we strongly recommend the 1.27 mm grid (exact conversion of 0.05...

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