Re: gEDA-user: Surface mount LEDs

[Dave N6NZ <n6nz@xxxxxxxx>]

I've been using 0805 LiteON LTST-S220xxx parts, DigiKey 160-1220-1-ND in 
red/org, 160-1218-1-ND in green, other colors available.  I like these 
because they have very wide angle viewing -- full 180 degrees pretty 
much.  I don't think there is a bi-color part in the LTST-S220 family, 
though.

Don't sweat the footprint issue -- use DJ's on line two-pad generator. 
It's pretty easy to stamp out two-pad footprints that way. Just remember 
to add comments as to how you got your footprint.

While I'm mentioning it... I'll gamble that DJ is actually reading this 
and make an enhancement request: It would be nice if the generated 
footprint aways included comments with my original input in the 
generated symbol, so I could remember how I get there... something like 
the comments I enter manually:

Element["" "0603 1.6mm x 0.8mm, 0.3mm terminal" "" "" 0 0 0 0 0 100 ""]
(
         # Generated 13-June-2007 gedasymbols.org two pad footprint 
generator
         # C = 8 mil
         # M = 6 mil
         # PL = 2.0mm
         # PT = 0.5mm
         # PW = 1.0mm
         # SO = 8 mil
         # SW = 10 mil
         Pad[-2953 984 -2953 -984 1968 1600 3168 "1" "1" "square"]
         Pad[2953 984 2953 -984 1968 1600 3168 "2" "2" "square"]
         ElementLine[-3937 -3268 5237 -3268 1000]
         ElementLine[-3937 3268 5237 3268 1000]
         ElementLine[5237 -3268 5237 3268 1000]
         ElementLine[-5237 -1968 -5237 1968 1000]
         ElementArc[-3937 -1968 1300 1300 0 -90 1000]
         ElementArc[-3937 1968 1300 1300 0 90 1000]
)

-dave

Michael Sokolov wrote:
> Hello gEDA/PCB users,
> 
> I'm looking for some surface mount LEDs, specifically a 1206-sized (or
> thereabouts) green LED and a 1210-sized (or thereabouts) bicolor
> red/green LED, both shining upward from the PCB (i.e., not right angle).
> Would prefer for the two to be somewhat matched, i.e., from the same
> family.
> 
> I wonder, would anyone here have a part they can recommend?  I.e., one
> for which there is:
> 
> a) a good PCB footprint;
> b) a part number orderable from somewhere;
> c) an indication of which side is the anode and which is the cathode;
> d) for the bicolor LED, knowledge of which one is red and which one is
>    green. I want to connect the green one to the DSR modem control
>    signal and the red one to an error signal on my SDSL board, so I'd
>    like to know which is which by some way other than connecting it
>    randomly on the PCB, firing it up and observing the color.
> 
> TIA,
> MS
> 
> 
> _______________________________________________
> geda-user mailing list
> geda-user@xxxxxxxxxxxxxx
> http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
> 
> 


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