The best thing to do is to make sure you have consistency not only within
your company but to industry standards - such as the suggestion below.
We have ONE Customer that uses a "+" sign, a heavier filled in area at the
anode end, the number 1, and a NEGATIVE sign! (Of course, we were supposed
to figure all the variations out with no input and I'll give you 3 guesses
what happened).
To make matters worse - there was this one board (out of approximately 30
different assemblies we build for that Customer) that had the number one at
one end, and a plus sign at the other end. It was their exception board
they neglected to tell us about.
Jan Pelchat
> -----Original Message-----
> From: Ed Valentine [SMTP:[log in to unmask]]
> Sent: Wednesday, October 11, 2000 5:34 PM
> To: [log in to unmask]
> Subject: Re: [TN] Diode Polarity silkscreen markings
>
> Phil -
>
> If space permits, we always put a "+" positive symbol for the anode end of
> the diode on the outside of the component outline, so it can be seen after
> the diode is placed and reflowed. Ed/
>
> Ed Valentine
> Electronics Manufacturing Solutions
> 8612 Mourning Dove Road, Raleigh, NC 27615
> Phone: (919) 270-5145, Fax: (919) 847-9971
> Email: [log in to unmask]
> Website: http://www.ems-consulting.com
>
> ----- Original Message -----
> From: "Phil Bavaro" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, October 11, 2000 11:38 AM
> Subject: [TN] Diode Polarity silkscreen markings
>
>
> > What does everyone use for marking polarity of diodes on the silkscreen?
> >
> > Is there a standard for this family of components?
> >
> >
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