[HH] extended temperature LED

[Greg London]

Those LED's are rated for 700 milliamps.

I was looking for a simple on/off type indicator on a panel.

these look like they're for a flashlight or headlights.

if I put 5 to 20 mA through them, will they even turn on?

The current/luminosity graph doesn't look like it turns on below 50mA.
well, to be fair, the graph is tic'ed off in 50ma steps, so,
maybe it does, it's just hard to tell.

Greg




> 110:
> http://www.mouser.com/ProductDetail/Avago-Technologies/ASMT-YTB2-0BB02/?qs=wmFqszA%252be7OLXw5xpD8dKPWueOJ0qB8uHtQKUz5zTfg%3d
> <http://www.mouser.com/ProductDetail/Avago-Technologies/ASMT-YTB2-0BB02/?qs=wmFqszA%252be7OLXw5xpD8dKPWueOJ0qB8uHtQKUz5zTfg%3d>
> 120:
> http://www.mouser.com/ProductDetail/Avago-Technologies/ASMT-JW33-NSU01/?qs=zXUFZjqEZii3tWYZG0sUiPF7ppr5g6cq
> http://www.mouser.com/ProductDetail/Avago-Technologies/ASMT-JN33-NSU01/?qs=zXUFZjqEZihEDDr1eCraLyH8Fm5uu8FO
>
> <http://www.mouser.com/ProductDetail/Avago-Technologies/ASMT-JW33-NSU01/?qs=zXUFZjqEZii3tWYZG0sUiPF7ppr5g6cq>Avago
> makes higher temp than most.  Also, run them at half power and they'll
> handle the high end better.
>
> This is the sort of thing you'd talk to an apps engineer or really good
> sales rep for, though.  Or get the vendor catalog.
>
> *
> Drew Van Zandt
> Artisan's Asylum Craft Lead, Electronics & Robotics
> Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld)
> Domain Coordinator, MA-003-D.  Masquerade aVST
> *
>
>
>
> On Wed, May 23, 2012 at 6:55 PM, Kurt Keville <kkeville at mit.edu> wrote:
>
>> Does it have to comply to a particular MIL-STD? Maybe you could search
>> on
>> that?
>>
>> On May 23, 2012, at 6:38 PM, Greg London wrote:
>>
>> >
>> >
>> > I am looking for an extended temperature LED.
>> > Digikey does not display LED's by temp that I can tell.
>> >
>> >
>> http://www.digikey.com/product-search/en/optoelectronics/leds-75ma-discrete/524729?k=optoelectronics%20leds%2075ma%20discrete
>> >
>> > I've been clicking through random LED's to then click through
>> > the spec and then <control>-<F> to grep for "temperature".
>> > So far, the best I've found is -40c to +100c.
>> > I was trying to find something that was good for at least
>> > -40c to +125c.
>> >
>> > Mouser appears to not let you search LED's by temperature either.
>> > Googling for "extended temperature led" gave me all sorts
>> > of stuff I wasn't looking for.
>> >
>> > Anyone know where I could find a basic indicator LED
>> > (not too much current, decent viewing angle, comparable brightness)
>> > that can handle a large temp range?
>> >
>> > Thanks,
>> > Greg
>> >
>> >
>> >
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