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~ Leech-LED ~

Discussion in 'General Electronics Chat' started by Skyknight, May 6, 2003.

  1. Skyknight

    Skyknight New Member

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

    Thanx in advance!
     
  2. Sebi

    Sebi New Member

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    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
     
  3. bogdanfirst

    bogdanfirst New Member

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    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!
     
  4. dave

    Dave New Member

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  5. Skyknight

    Skyknight New Member

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    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:
     
  6. Sebi

    Sebi New Member

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    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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