Any Valuable Components on the PCB?

Discussion in 'General Electronics Chat' started by mu71b, Aug 20, 2016.

  1. mu71b

    Thread Starter Member

    Feb 26, 2014
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    1471694347370-158083100.jpg 1471694419007-1136216694.jpg 1471694464349-1621013268.jpg 1471694568509992118551.jpg 147169459458070506591.jpg 1471694622772706368571.jpg 1471694665080-2120228972.jpg 14716947276081087298866.jpg 14716947602401162603436.jpg 1471694799527-1951393202.jpg 1471694347370-158083100.jpg 1471694419007-1136216694.jpg 1471694464349-1621013268.jpg 1471694568509992118551.jpg 147169459458070506591.jpg 1471694622772706368571.jpg 1471694665080-2120228972.jpg 14716947276081087298866.jpg 14716947602401162603436.jpg 1471694799527-1951393202.jpg 1471694347370-158083100.jpg


    Hiya Guys i rarely post so please excuse me if i have posted this in the wrong department, but i was wondering whether or not it is worth desoldering the various electronic components from this Circuit Board to sell, whether infividual or bulk such as to reycycling companys for tantalum...

    Many Thanks,

    Awaiting your Assistance ~ Mujib
     
  2. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    Selling tantalum capacitors for scrap may be viable, but you need a quantity supply not just one board.

    Selling other components is a non-starter. Were they working when still attached to the board? Did they survive the de-soldering process?
    There are some chips on there which look like BGA - difficult to get off the board and if they use solder balls then impossible (on an amateur basis) to regenerate the balls.

    I certainly wouldn't (knowingly) buy reclaimed electronic parts at any price.
     
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  3. mu71b

    Thread Starter Member

    Feb 26, 2014
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    Especially the smd's
     
  4. mu71b

    Thread Starter Member

    Feb 26, 2014
    43
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    Hmmm well could you start me off by lettig me know whether any off these componenets have tantalum inside them, oh this is just one board out off a sky box, the boxes have at least 2 major boards and i have an additional 5 sky boxes, various models...
     
  5. mu71b

    Thread Starter Member

    Feb 26, 2014
    43
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    Would the chips be off any value? I have a decent heat gun if that helps,

    Here are a few chips & components i removed beforehand 1471697228339957155515.jpg 1471697250294-1775748859.jpg 1471697269972-1159621977.jpg
     
  6. SLK001

    Well-Known Member

    Nov 29, 2011
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    It's not worth your effort.
     
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  7. mu71b

    Thread Starter Member

    Feb 26, 2014
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    Why do you say that?
     
  8. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    I can see nothing I can identifiy as tantalum. The attached shows four black rectangles which I believe are zener diodes (as their designation begins with ZD) but smd tantalum capacitors look rather like that and with a similar polarity stripe at one end. They would have desinations beginning with C.
     
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  9. mu71b

    Thread Starter Member

    Feb 26, 2014
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    Ok,i thank you for your assistance, so initally there is no point in desolderig the surfacd mount components as they are worth virtually nothing?
     
  10. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    Did they work before you removed them? Even if they did do they still work? How do you plan to test them before you sell them? What would you do when your customer complains that they don't work?

    I'm out!
     
  11. mu71b

    Thread Starter Member

    Feb 26, 2014
    43
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    I assume so
     
  12. mu71b

    Thread Starter Member

    Feb 26, 2014
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    So , the surface mount resistors/capacitors/transistors are worth virtualyy nothing and i shoildn't waste my time trying to desolder them?
     
  13. Papabravo

    Expert

    Feb 24, 2006
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    Ask yourself if you can find ANYBODY online selling used SMD parts?
     
  14. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    In my experience, board components of greatest value are the mechanical components, including heatsinks, knobs, attachment hardware. When you need just one of, it is often hard to find. Power inductors have some value, particularly if labeled as many of yours are. Resistors and capacitors are worthless. Possible exceptions to that being high-wattage resistors and very low valued ones used for current monitoring.

    As for IC's, I have collected a few but have never used any of them.

    John

    In answer to PB, a surplus store in Cleveland has surplus electronic components and many used transformers, power inductors, heat sinks and other mechanical stuff for sale.
     
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  15. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    I suspect the energy used to desolder the components would cost more than the price you would get for them.
     
  16. hp1729

    Well-Known Member

    Nov 23, 2015
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  17. hp1729

    Well-Known Member

    Nov 23, 2015
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    I think he is considering them for personal use, not resale. Just trying to save a few bucks.
     
  18. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    What is scrap for the one, can be of great value to others.
    In some parts of the world scrap boards can be of great value to the user, as parts can be very hard to get.

    Bertus
     
  19. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    QED
     
  20. mu71b

    Thread Starter Member

    Feb 26, 2014
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    Thank you you have been most helpful
     
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