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Subject: Re: [geda-user] [OT] I need help with selecting components
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On 07/22/2015 05:47 AM, DJ Delorie wrote:
>> But what about the polarity?
> I think I use a hacked 0603 footprint for mine, which has a polarity
> indicator, but I usually end up looking at the schematics to determine
> which way to put LEDs on.  Even then, it's hard to figure out which
> pin is which on the LED itself.  However, that's the type of LED eval
> boards use.


SOD323 is about the same size as 0603 and has polarity; in my footprint
collection I have 2 variants, one with smaller pads (downloaded from
somewhere, possibly John Luciani's site)[1] and the one in pcblib-newlib
with larger pads and a slightly larger outline, but the distance between
pads is exactly the same as for 0603

The one with smaller pads makes it easier to route a trace between them,
and might help getting a compact board when designing for automated
assembly, thile the other one should be easier to hand solder.

[1] http://luciani.org/geda/pcb/footprints-gif/Diode-gif.html


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