Surface mount LED

Discussion in 'General Electronics Chat' started by kwstudz, Jun 24, 2009.

  1. kwstudz

    Thread Starter New Member

    Jun 24, 2009
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    I am looking for a surface mount LED of 0806or smaller with a less than 1.0 voltage drop. if anyone has any ideas thatd be appreciated.
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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    806 might be possible, but you may have to change some physics to get the drop as low as that.
     
  3. kwstudz

    Thread Starter New Member

    Jun 24, 2009
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    I meant 0805 or smaller
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
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    No problem with the size compared to the physics. What color do you expect to get?
     
  5. bertus

    Administrator

    Apr 5, 2008
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  6. kwstudz

    Thread Starter New Member

    Jun 24, 2009
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    i needed a color of amber, yellow, orange, or a mixture
     
  7. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    When you look at the page I gave you, yellow and orange leds will have a voltage drop of about 2.2 Volts.
    This will not meet your desired specs.

    Greetings,
    Bertus
     
  8. Wendy

    Moderator

    Mar 24, 2008
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  9. ELECTRONERD

    Senior Member

    May 26, 2009
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    Typical red LED's have a 3.2V drop which wont meet your required needs.
     
  10. Audioguru

    New Member

    Dec 20, 2007
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    What?
    Ordinary red LEDs have a forward voltage drop of 1.5V to 2.4V at 20mA. 1.8V is typical.

    Very high power red Luxeon LEDs have a forward voltage of 2.3V to 3.5V at 1.4A. 2.95V is typical.
     
  11. ELECTRONERD

    Senior Member

    May 26, 2009
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    Well the 5mm LED's that I delt with say that they were 3.2V...Hmmmm......
     
  12. Wendy

    Moderator

    Mar 24, 2008
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    Generally the newer the LED the higher the drop, which also has to do with their higher efficiencies.
     
  13. tom66

    Senior Member

    May 9, 2009
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    The highest red LED voltage drop I've seen is 2.6 volts... Some newer ones might be higher, maybe 2.9 volts or so.
     
  14. ELECTRONERD

    Senior Member

    May 26, 2009
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    Hey Bill,

    Yeah, I got a few of the UltraBright LED's from SunLED that just came out.
     
  15. Wendy

    Moderator

    Mar 24, 2008
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    Hadn't heard of them, point us to a spec sheet?
     
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