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...