S4.1 General pin requirements
-
Using a
100mil
(2.54mm
) grid, pin origin must lie on a grid node (IEC-60617) -
Pins should have a length of at least
100mil
(2.54mm
)-
Pin length can be increased in steps of
50mil
(1.27mm
) -
The number of characters in the pin number determine a pin’s length. When there are two characters in the pin number then
100mil
(2.54mm
) long pins should be used, when three characters then150mil
(3.81mm
) long pins should be used, etc. -
Pin length must not exceed
300mil
(7.62mm
) -
Shorter pins are allowed on simple symbols for discrete devices such as resistors, capacitors, etc.
-
All pins on a symbol must have the same length
-
-
Pin numbers must be unique (no two pins may have the same number)