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Date: Tue, 24 Apr 2012 15:01:12 -0700
From: Phil Taylor <phil AT plastitar DOT com>
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Subject: Re: [geda-user] They don't call it experience for nothing!!!
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On 4/24/2012 2:48 PM, DJ Delorie wrote:
> My solution is to have one symbols for each pin numbering, named by
> the numbering.  So I have a SOT23-12-345.sym and a SOT23-123-45.sym
> for the two five-pin variants.

This has worked well for me, too, but with a slight variation

For three pin devices I have symbols like bjt_npn_ebc.sym, 
bjt_pnp_cbe.sym mos_n_gds.sym ... where the position of e, b, c, and g, 
s, d etc. are always in the order 1-2-3.  In the footprints, I override 
all manufacturer pinouts and use my own standard 1-2-3 naming which is 
R-L for through-hole parts and the commonest pinouts for smts. 
(clockwise from above, with # always being the same).  A few minutes in 
every design is put aside to glance at the datasheet with the schematic 
and PCB file both open for verification.

So far I have not caught any errors working this way.  Though I do 
remember doing things like rotating SMT's and mounting transistors 
upside down from my days of trusting someone else's library.

Good luck, Phil