Re: TO220 LEDs?

On Sun, 4 Sep 2005 18:12:05 +0100, Clive Mitchell
<clive1@xxxxxxxxxxxxxxxxxxxx> wrote:

>I browsed the new Maplin (UK) catalogue today and saw some 1W LEDs in a
>TO 220 package. For the uninitiated these are the same package used for
>many high power transistors, triacs, voltage regulators and other stuff,
>and look like a small rectangle with a heatsink tab on one end and two
>or three legs sticking out the other.
>
>I suppose this makes sense since it facilitates easy fixing to a
>standard heatsink with a wide range of standard insulating shims and
>screw isolators to ensure isolation from the heatsink. I can imagine
>these being ideal for use in long strips where a thin PCB runs under the
>legs making connection. It should allow quite dense linear packing if
>the heatsink is up to the job.

What is the direction of the light relative to the rest of
the package. Fro the "top" or the "front"?

--
Vic Roberts
http://www.RobertsResearchInc.com
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