Re: gEDA-user: 2N3906 gschem & pcb

[Karel Kulhavy <clock@xxxxxxxxxxxxx>]

On Mon, Jul 10, 2006 at 05:41:19PM +0200, Wojciech Kazubski wrote:
> > I think there is a difference in pin assignments on the 2N3906
> > parts between GSCHEM and PCB.
> >
> >                        E   B    C
> >     PCB            1    2    3
> >     GSCHEM    3    2    1
> >
> > I am not very good at transistors and the resultant circuit
> > has some strange behavior (not all bad). I notice that some
> > transistors in gschem use the EBC notation while others
> > use 123 or 321.
> >
> > George
> 
> There are two methods of numbering pins in TO92. One is prefered in Europe, 

Actually there are 6 of them. So in which countries are the remaining 4
preferred?

CL<
> while the second one is used in US. 
> Compare a datasheet of BC547 from Philips and for example TL431 from 
> Fairchild:
> http://noel.feld.cvut.cz/semi/philips/acrobat/7641.pdf
> http://www.fairchildsemi.com/ds/TL/TL431A.pdf
> So both programs are correct but to diffeent standards :-(
> 
> Wojciech Kazubski
> 
> 
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