SMD LED with forward voltage less than 1.75V

Thread Starter

Jyothics23

Joined Sep 2, 2008
2
Hi All,

I am looking for SMD LED, case style 0603, with forward voltage less than 1.75V. I tried to find from internet but i couldn't get it.If anybody know such kind of LED available, pls provide the information.

Appreciate your replays

Thanks

Joo
 

SgtWookie

Joined Jul 17, 2007
22,230
I stumbled across one on Mouser.com the other day, but not knowing where you are, I don't know if you could order it. Besides, I didn't save the part number. They do sell them though. I believe it was a red LED.

You'll be hard-pressed to find a visible light spectrum 0603 LED that has a typical Vf of under 1.6v.
 

rezer

Joined Aug 26, 2008
10
Infrared LEDs have a low forward voltage. Maybe only 1.4V.
He probably wants to see the light.:)
Red LEDs will typically drop less voltage and with the proper current considerations you could get close to 1.6V but probably not lower than that. If you up the current limiting resistor to decrease the Id to around 3mA, this will put your Vf around 1.7-1.8V. The trade-off is, your LED won't be as bright, but bright enough.
 
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Thread Starter

Jyothics23

Joined Sep 2, 2008
2
Hi rezer, SgtWookie, Audioguru, bertus,

Thanks to all of you to help me to find the item .:)

Appreciate your work.


Regards,

Joo
 
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