new age diodes - what is this? can I use a 1N4004

Discussion in 'General Electronics Chat' started by meestahelectro, Nov 23, 2010.

  1. meestahelectro

    Thread Starter Member

    Aug 10, 2006
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    schematic says "Diode SM MELF DL4004 400v 1.0A"

    I am wondering can I just use a 1N4004 diode and mount it to the surface of the board??? any thoughts on this would be great greatly appreciated.

    thx, Max
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
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    I think that SM MELF means SMD, so I would rather buy an SMD version to fit the board.
     
  3. tom66

    Senior Member

    May 9, 2009
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    If you have the PCB, then no, you will have to use the right diode.

    But if you're making your own PCB or breadboarding it, the 1N4004 is equivalent to the DL4004. Both are 400V, 1A silicon standard recovery diodes.
     
  4. meestahelectro

    Thread Starter Member

    Aug 10, 2006
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    yes, I have the PCB already its an expensive board around $400 or so. Some other people I know have used the 1N4004. I guess they just stuck it on somehow. Personally i would like to get the correct diode, I probably will, but I think its probably the same thing no? just different packaging?
     
  5. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
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    exactly
    It certainly is possible to use leaded diode instead of SMD one, but it needs some practice in soldering, good eye and steady hand. I suppose you are going to buy the parts anyway, so just go and buy the recommended one.
     
  6. meestahelectro

    Thread Starter Member

    Aug 10, 2006
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    0
    already purchased. now I just need to wait to get... danGGGG.

    I suspect even with the surface mount it will require good eye, steady hand and soldering. I have the first and last, hand is not so steady, but I will make it work like always.

    thanks folks.
     
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