Connect with us

LED as a diode

Discussion in 'LEDs and Optoelectronics' started by micromackan, Jun 13, 2017.

  1. micromackan

    micromackan

    2
    0
    Jun 13, 2017
    Hi,
    I have a small DC motor but i have no good diodes to handle the back emf. Can i use a normal LED as a diode since my motor is very small?

    picture in attachment.

    Forum.png
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,172
    2,689
    Jan 21, 2010
    You might be able to get away with it, but beware that a LED has a very low reverse voltage. Also beware that relatively high current pulses (300mA) will pass through the LED which could shorten its life.

    It's hard to know how the LED will eventually fail, and whether that failure will cause other problems for you.

    I wouldn't recommend it.

    Any rectifier diode you can scavenge out of some broken piece of equipment will probably do far better.
     
  3. micromackan

    micromackan

    2
    0
    Jun 13, 2017
    Okey, thanks for the reply!
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
There are no similar threads yet.
Loading...
Electronics Point Logo
Continue to site
Quote of the day

-