SMD LED with forward voltage less than 1.75V

Discussion in 'General Electronics Chat' started by Jyothics23, Sep 2, 2008.

  1. Jyothics23

    Thread Starter New Member

    Sep 2, 2008
    2
    0
    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
     
  2. bertus

    Administrator

    Apr 5, 2008
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  3. Audioguru

    New Member

    Dec 20, 2007
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    Infrared LEDs have a low forward voltage. Maybe only 1.4V.
     
  4. SgtWookie

    Expert

    Jul 17, 2007
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    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.
     
  5. rezer

    Member

    Aug 26, 2008
    10
    1
    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.
     
    Last edited: Sep 4, 2008
    Michi_LEE likes this.
  6. Jyothics23

    Thread Starter New Member

    Sep 2, 2008
    2
    0
    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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