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~ Leech-LED ~

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Skyknight

New Member
How much voltage is dropped in a usual LED? Does the color matter? Being or not in SMD package matters?

Thanx in advance!
 

Sebi

Active Member
The voltage drop depend from colour. Red 1,3...1.9V,green 2...2,2, yellow 2,2...2,8,blue about 3,6, white about 4,2. Available SMD 0805,1206,PLCC
 

bogdanfirst

New Member
i dont know why you say that for a white you need 4.2V i have a white led wich works on 2 1.5V batteries perfect!
 

Skyknight

New Member
Sorry if I expressed myself wrong :? I didn't want to ask about the avaliable packages of LEDs.I wanted to ask if a SMD LED will drop more voltage (or less). In another words: How much drop do you think will force a blue SMD LED? Thank you! :roll:
 

Sebi

Active Member
I can writing about this blue PLCC LED in my hand: 3.7V if the current is 15mA. I'm sure,the voltage depend only from wawelength (colour) and maybe manufacturer (type) but not from packaging.
Bogdan, my white LED 4.2V if the current is 50mA. I've not forgotten the PSU...
 
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