Did you notice, Russell, that this Vishay datasheet is for a PIN
photodiode? As far as I know, PIN photodiodes are almost always used
under reverse bias (i.e. photoconductive mode) where the external
resistor value does not determine the current!

Sean


On Wed, Dec 7, 2011 at 4:35 PM, RussellMc <apptechnz@gmail.com> wrote:
> Very surprisingly, even Vishay use the phrases
> (http://www.vishay.com/docs/81564/temd1000.pdf) even though I would be
> most surprised if they were the originators!.
>
> Note that actual LED styles involved vary widely.
>
> Everlight / Everchips may be the source.?
>
>
> =A0 =A0 =A0 =A0Russell
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