Hi Dom,

The basic numbering is 

 3
1 2

However many other variants of the pinout exist out
there.

Rule 1: Always check the datasheet.

Mira

--- Dom Bragge <[EMAIL PROTECTED]> wrote:
> When you organise your footprints, what pinout do
> you use for SOT-23's?
> 
> Do you organise the pins...
>  -like shown in the attachment?
>  -or with pins 2&3 reversed?
> 
> The bigger question really is: Where do you derive
> your pin numbering
> guidance from? 
> 
> I find that some datasheets just show the pin names
> against the actual
> pins (& cutout the middleman of *numbers*) thus
> avoiding the issue
> altogether. This doesn't help those of us who want
> to be able to use a
> common footprint across multiple designs.
> 
> One answer is "define your own company standard",
> but if I chose
> against an industry standard, that'd be a bit silly
> wouldn't it.
> 
> =====
> Dom Bragge CID
> Snr PCB Designer
> Sydney, Australia
>  ( 99SE sp6 )
> 
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