Schottky Barrier diode

Discussion in 'General Electronics Chat' started by 1:1, Jan 25, 2007.

  1. 1:1

    Thread Starter Member

    Jan 25, 2007
    27
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    Hai forum member,

    Can anyone tell me what exactly the Schottky Barrier Diode working for?
    If possible, please provide me some circuit diagram or related information as referencing.

    Thank, Tokeda.
     
  2. wireaddict

    Senior Member

    Nov 1, 2006
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    Howdy, Schottky diodes are silicon diodes that are made so they have a narrower PN junction region. The advantage of this is that they have a lower forward voltage drop than other silicon diodes [about 0.3V, close to that of germanium diodes as opposed to about 0.7V for regular silicon diodes] but still have the high reverse resistance of silicon diodes. One use for these diodes is for detectors in "crystal" radio sets. [For more info on this check out "Rap 'n Tap" & Midnight Science" on Google.]
     
  3. Ron H

    AAC Fanatic!

    Apr 14, 2005
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  4. 1:1

    Thread Starter Member

    Jan 25, 2007
    27
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    Thank wireaddict & Ron H, i will read thru the article.
    Do u have any idea if i using two BAT85 instead of using BAT54S?
    Is that possible to build the same thing?
     
  5. wireaddict

    Senior Member

    Nov 1, 2006
    133
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    The BAT54S is a surface mount diode while the BAT85 has wire leads. Both appear to have similar electrical specs. Why, then, do you want to use two '85s to make a '54S? Regards.
     
  6. 1:1

    Thread Starter Member

    Jan 25, 2007
    27
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    Again, thank wireaddict,

    Since BAT54S is surface mount, imply that some special soldering equipment was required, so i think about is that possible doing this stuff in alternatives way.

    Tokeda
     
  7. wireaddict

    Senior Member

    Nov 1, 2006
    133
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    Personally, I'd use the leaded version, the BAT85 [or NTE585]; surface mounted components are harder to work with & harder to control the amount of heat to the PN junction when soldering which can damage it.
     
  8. 1:1

    Thread Starter Member

    Jan 25, 2007
    27
    0
    Cheer Dave, i was agree what u had said......
    I think i should try to use 2 pieces of BAT85 to implement on my project. Surface mount really not a good choice if lack of technical support.


    Tokeda
     
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