Can I drive a 5v LED without a current resistor?

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  1. - 11th September 2009, 11:49 #1
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    mackrackit
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    Quote Originally Posted by dhouston View Post
    If it's truly a 5V LED it will have a current limiting resistor built in like this one...
    Now this is getting interesting
    mean while, back at the ranch...
    Dave
    Always wear safety glasses while programming.
  2. - 11th September 2009, 12:47 #2
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    What interests me more is WHO ON EARTH is willing to pay $1.25 for a single LED...

    Show me these guilty people (so I know who I can deal with)...
  3. - 11th September 2009, 14:42 #3
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    Quote Originally Posted by Melanie View Post
    What interests me more is WHO ON EARTH is willing to pay $1.25 for a single LED...
    Well, that was just a quick example I googled up. You can find them for less.And the OP didn't ask whether they were cost efficient but only whether they needed an external resistor.

    They are really handy for breadboarding - as long as you don't mix them with standard LEDs.
    Last edited by dhouston; - 11th September 2009 at 14:47.
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