In a message dated 12/30/2005 10:33:49 P.M. Central Standard Time,
alan00463@... writes:
pad should
include a 5 mil annulus (ring) around the component
leads. But I don't know what the diameter of the
leads are for these components.
This ring-width would be OK perhaps for VERY compact lead-spacing where the
board has ALL plated-through-holes ("PTH").
5 mil is only about twice the width of a thinner human hair! The hole must
be drilled 5 mil LARGER for PTH, as the plating and solder-coating fills in
the holes about that amount. For home-brew, NON-PTH, go for 0.08" or more, or
at least 0.065 for IC's.
[Non-text portions of this message have been removed]
alan00463@... writes:
pad should
include a 5 mil annulus (ring) around the component
leads. But I don't know what the diameter of the
leads are for these components.
This ring-width would be OK perhaps for VERY compact lead-spacing where the
board has ALL plated-through-holes ("PTH").
5 mil is only about twice the width of a thinner human hair! The hole must
be drilled 5 mil LARGER for PTH, as the plating and solder-coating fills in
the holes about that amount. For home-brew, NON-PTH, go for 0.08" or more, or
at least 0.065 for IC's.
[Non-text portions of this message have been removed]