and what is rule #2 ? :} personally, i oscillate between liking the 1 2 3 convention and the E B C convention
like many things 'it's all bad' i once had some T1 3/4 LEDs from HP the short leg was the anode for that *particular* p/n which is why they weren't very bright when installed Dennis Saputelli Mira wrote: > > 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 ) > > > > Find local movie times and trailers on Yahoo! > > Movies. > > http://au.movies.yahoo.com > > -- _______________________________________________________________________ Integrated Controls, Inc. Tel: 415-647-0480 EXT 107 2851 21st Street Fax: 415-647-3003 San Francisco, CA 94110 www.integratedcontrolsinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
