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Laser module question

Discussion in 'LEDs and Optoelectronics' started by donkey, Jan 12, 2013.

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  1. donkey

    donkey

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    Feb 26, 2011
  2. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    May 8, 2012
    I suspect it has an integral limiting resistor valued to operate the laser on 5V. I'm not sure that this question belongs in this sticky though.

    Chris
     
  3. CocaCola

    CocaCola

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    Apr 7, 2012
    I have used that exact module or at least a comparable (identical look and size) one in a commercial product I was contracted to make... I ran it from 5V with a 150 Ohm resistor, the datasheet the manufacture gave me said max 4.5V @ whatever mA (don't recall), even though they are sold everywhere with listed 5V ratings... I never heard back on any reported failures of said modules and that was years ago...

    I would try a 220 Ohm with 4AA for starters and maybe do a few day stress test...
     
  4. donkey

    donkey

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    Feb 26, 2011
    its just a fun thingI got nothing important but I wanted to play with it
     
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