Ultrabright Bi-polar LED's

[Tomás Ó hÉilidhe-2]

I'm still searching for the perfect LED, and I need it to satisfy the
following:

* Must be 5mm package
* Must be dual colour
* Must have only two leads (therefore the LED's must face in different
directions internally)
* The forward voltage must be less than 3 V
* I should get decent brightness out of 20 mA

The closes I've gotten so far is the following:

http://www.farnell.com/datasheets/90506.pdf

Now the only little nagging problem about this LED is that it's Red and
Green, and so about 1 in 15 people in the world will have difficulty
distinguishing the two colours. This isn't a major major major problem,
but if possible I'd like to find different colours.

At the moment I'm going to settle with this particular LED. If anyone
knows of a similar LED but with different colours, I'd appreciate it.

--
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist

[M. Adam Davis-2]

Have you checked out the LED manufacturers?

One I use is Kingbright:

http://www.kingbrightusa.com/product.asp?catalog_name=LED&category_name=5mm%20Bi-color&product_id=WP57EYW

There's a 2 lead red yellow LED which should be reasonably distinct.

It will require a lot more work for you to find find exactly what you
need, so you should make friends with a few local distributers and
have them make suggestions for you.  You'll still need to do a lot of
legwork, but I'm sure you can find other parts that are suitable.

-Adam

On 7/10/08, Tomás Ó hÉilidhe <toe@...> wrote:

>
> I'm still searching for the perfect LED, and I need it to satisfy the
> following:
>
> * Must be 5mm package
> * Must be dual colour
> * Must have only two leads (therefore the LED's must face in different
> directions internally)
> * The forward voltage must be less than 3 V
> * I should get decent brightness out of 20 mA
>
> The closes I've gotten so far is the following:
>
> http://www.farnell.com/datasheets/90506.pdf
>
> Now the only little nagging problem about this LED is that it's Red and
> Green, and so about 1 in 15 people in the world will have difficulty
> distinguishing the two colours. This isn't a major major major problem,
> but if possible I'd like to find different colours.
>
> At the moment I'm going to settle with this particular LED. If anyone
> knows of a similar LED but with different colours, I'd appreciate it.
>
> --
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>

--
EARTH DAY 2008
Tuesday April 22
Save Money * Save Oil * Save Lives * Save the Planet
http://www.driveslowly.org

--
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist