What diode is this?

Discussion in 'The Projects Forum' started by aoshi62, Oct 10, 2009.

  1. aoshi62

    Thread Starter New Member

    Oct 8, 2009
    6
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    it seems so hard to find... any alternative for this?

    SD50

    Tnx...
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    It's in a TO92 package, right?

    I don't see why you couldn't substitute a 1N914 or 1N4148 switching diode. Different package (DO-35), but as long as there's room ... why not?
     
  3. aoshi62

    Thread Starter New Member

    Oct 8, 2009
    6
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    i dunno....

    can i use that any of that 2 as alternative of this?
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,646
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    Hello,

    Can you make a photo of it?
    In what circuit is the diode used?

    Greetings,
    Bertus
     
  5. SgtWookie

    Expert

    Jul 17, 2007
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    The only datasheet I could find for a SD50 indicates that diode is in a TO92 package, has a reverse breakdown voltage of 50v, and a maximum average current of 25mA.

    The 1N914 and 1N4148 both have a maximum average current of 100mA and reverse breakdown voltage of 100v.
     
  6. aoshi62

    Thread Starter New Member

    Oct 8, 2009
    6
    0
    here it is..[​IMG]

    any alternatives for SD50 , 2n3668 SCR and BC 148 Transistor? pls... help...

    Thanks in Advance.....
     
    Last edited: Oct 10, 2009
  7. SgtWookie

    Expert

    Jul 17, 2007
    22,182
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    That's not a very good charger design. There's a better one in the projects collection forum.
     
  8. aoshi62

    Thread Starter New Member

    Oct 8, 2009
    6
    0
    what's the title of the design?
     
  9. srisuresh

    New Member

    Nov 29, 2011
    2
    0
    Hi..


    Did you completed that project battery charging model.

    expecting your reply soon
     
  10. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,750
    759
    srisuresh, please do not hijack others threads.
    Feel free to start a new one regarding ur problem :)
     
  11. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
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    That is very unlikely, the thread is two years old an the guy has not been here since.
     
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