High Intensity IR LED

[Steve C]

I am looking for a high intensity IR LED, about 875nm. The one I have
now is 15mA, but I would like something 5-10x that. Is there anything
available?

Thanks,

Steve

 

[John Popelish]

Steve C wrote:

I am looking for a high intensity IR LED, about 875nm. The one I have
now is 15mA, but I would like something 5-10x that. Is there anything
available?

Thanks,

Steve

Take a look at these:
http://www.infineon.com/cmc_upload/0/000/008/496/sfh484_5.pdf
--
John Popelish

 

[Louis Boyd]

Steve C wrote:

I am looking for a high intensity IR LED, about 875nm. The one I have
now is 15mA, but I would like something 5-10x that. Is there anything
available?

Try http://www.optodide.com

Their OD-100 is a single chip 100mw unit. The current rating on the
OD-100 is 500ma and of course it requires a heat sink. About $10 each.
They have lower power units too. Unfortuanately they have a minimum
order.
--
Lou Boyd

 

[William P.N. Smith]

Louis Boyd <boyd@apt0.sao.arizona.edu> wrote:

Steve C wrote:
I am looking for a high intensity IR LED, about 875nm. The one I have
now is 15mA, but I would like something 5-10x that. Is there anything
available?

Try http://www.optodide.com

Or the functional http://optodiode.com/ 8*)

Their OD-100 is a single chip 100mw unit. The current rating on the
OD-100 is 500ma and of course it requires a heat sink. About $10 each.
They have lower power units too. Unfortuanately they have a minimum
order.

--
William Smith wpns@compusmiths.com N1JBJ@amsat.org
ComputerSmiths Consulting, Inc. www.compusmiths.com

 

[Don Klipstein]

In art, <63a74e43.0309121143.6b5f491f@posting.google.com>, Steve C wrote:

I am looking for a high intensity IR LED, about 875nm. The one I have
now is 15mA, but I would like something 5-10x that. Is there anything
available?

There are planty with peak wavelength around 880 nm and maximum
continuous current 50 mA conservatively, maybe rated even more. You can
get them from Radio Shack, catalog number 276-143. It may have
specifiable characteristics based on 20 mA, but it can take much more -
conservatively 50 mA. Same for other 5 mm / "T1-3/4" infrared LEDs. An
optimistic continuous current rating for 5 mm infrared LEDs that
requires good heat conduction from the leads is 100 mA.

- Don Klipstein (don@misty.com)

 

[Volker Nitsche]

htsbio111@yahoo.com (Steve C) wrote in
news:63a74e43.0309121143.6b5f491f@posting.google.com:

I am looking for a high intensity IR LED, about 875nm. The one I have
now is 15mA, but I would like something 5-10x that. Is there anything
available?

Hello Steve,

the forward current is only half of the story. Depending on the
application you can have an radiant intensity in the area of your
interest, which varies dramatically. A narrow beam IrED will have a
different mW/sr value than a lamp, which is designed to cover a half
sphere, i.e. to be seen on all angles.

You probably have to scan the supplierers data sheet for your particular
application.

e.g. http://www.vishay.com/ir-emitting-diodes/

BTW. We have tested componentes up to 900 mA, with a duty cylce of 20% at
115kbit/s. Even after 2000 hours there was no degradation observable.

Regards
Volker