On Mon, Mar 2, 2015 at 4:56 PM, Mike Harrison <mike@whitewing.co.uk> wrote:

> On Mon, 02 Mar 2015 15:43:48 +0100, you wrote:
>
> >Try Kingbright KPTD-3216SRC-J4, Farnell 2314334.
> >
> >Just did a quick test and it was pretty bright even at 100-200uA.
> >
> >/Ruben
> >
> >> Hi all,
> >> I'm searching a high efficient LED which must light at 100-200uA.
> >> Any clue?
> >> thx,
> >> Vasile
>
> For max brightness at low current, white is usually best if you have the
> voltage available, but
> low-current LEDs in general should be pretty visible at that current rang=
e
>
>
>     I need indeed a low voltage drop and low current with reasonable
efficiency. The application is RF distribution harvesting with rectifier
antenna array (rectenna).  The use of any other component (such OA ,
transistor etc) will be avoided.
I didn't knew about KPTD-3216SRC-J4, Farnell 2314334 but I was looking at
HLMP-Q156-H0031
http://www.farnell.com/datasheets/45602.pdf

thx,
Vasile
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