I see a there several ways this is being done, Put us in the A & C
group. We use A & C for pin ref on the diodes
________________________________
From: David Greig [mailto:david@xxxxxxxxxxxxxx]
Sent: Monday, October 25, 2004 3:32 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: cathode pin 1 or 2
Which becomes interesting in the case of radial electrolytics
where it's the cathode that is identified, not the anode (as would be
the case with axials)!
Ho hum, so much for rules...
Best Regards
David Greig
_________________________________________
Director
GigaDyne Ltd
Buchan House
Carnegie Campus
Dunfermline KY11 8PL
United Kingdom
Tel. +44 (0) 1383 62 49 75
_________________________________________
________________________________
From: Ritter, Alan [mailto:Alan.Ritter@xxxxxxxxxx]
Sent: 25 October 2004 19:55
To: 'icu-pcb-forum@xxxxxxxxxxxxx'
Subject: [PCB_FORUM] Re: cathode pin 1 or 2
Our usual diodes also use pin 1 for the cathode. (Cadence,
ConceptHDL/Allegro)
Basically, our nomenclature is that pin 1 is the "identified"
end of a polarized component. Since the band on traditional diodes is
the cathode end, that becomes pin 1.
Polarized caps have the '+' pin as pin 1.
/s/jar (alan.ritter@xxxxxxxxxx)
Bausch & Lomb
150 Years of Perfecting Vision, Enhancing Life (TM)
EMAIL DISCLAIMER
Please Note: The information contained in this message may be
privileged and
confidential, protected from disclosure, and/or intended only
for the use of
the individual or entity named above. If the reader of this
message is not
the intended recipient, or an employee or agent responsible for
delivering
this message to the intended recipient, you are hereby notified
that any
disclosure, distribution, copying or other dissemination of this
communication is strictly prohibited. If you received this
communication in
error, please immediately reply to the sender, delete the
message and
destroy all copies of it.
Thank You
--
Virus scanned by Lumison.