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Lubricant for a wierd problem

Discussion in 'Electronic Basics' started by siliconmike, Jun 23, 2005.

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  1. siliconmike

    siliconmike Guest

    I have a pcb with 10 electrical gold plated contacts in a single line
    with 5 mil isolation between them.

    At any time, a small gold plated copper part "C" makes a very *light*
    contact with only one of the contacts.

    A *weak* force is responsible to move C over the range of contacts.

    Is there some lubricant I can apply on the contacts to reduce the
    friction between C and the contacts?

    Please don't advise to change this setup as nothing can be changed, for
    certain reasons.

    Mike
     
  2. Alan Adrian

    Alan Adrian Guest

    This can be done with math... but quantities such as *weak* and *light*
    won't get you (or anyone else) there...

    Al...
     
  3. Chris Berry

    Chris Berry Guest

    Graphite?
    cb
     
  4. Tom Biasi

    Tom Biasi Guest

    Chris, graphite is conductive.
     
  5. Yukio YANO

    Yukio YANO Guest

    POLYPHENYLETHER
    example SANTOVAC 5
    Found in some "Contact Kleaners" as "with PPE"
    Extremely Low Vapour Pressure, very stable, inert, great lubricant,
    expensive, "same price range as Gold !"
    Also available as a "High performance Ulta high Vacuum Grease "Fomblin"

    Yukio YANO
     
  6. The Phantom

    The Phantom Guest

    There is a product called "Gold Guard", whose active ingredient is polyphenylether, which
    is just for this job.
    http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=75&M=CP420E
     
  7. CWatters

    CWatters Guest

  8. siliconmike

    siliconmike Guest

    You are wrong. Probably if you had a clue you would have replied /
    guessed a solution like 7 other replies to my message which have been
    of great help.
     
  9. Chris Berry

    Chris Berry Guest

    That's one reason why I suggested it.
    Not knowing anything about the application itself, it might be a solution.
    cb
     
  10. Ross Herbert

    Ross Herbert Guest

    Stabilant 22 should do the trick http://www.stabilant.com/techt02h.htm
    While not marketed as either a contact cleaner or lubricant, it does
    do both. Expensive but good.
     
  11. I have (or had, I should say) a flashlight that I converted over to
    white LEDs. Well, to my surprise, when I shut off the swtch, the LEDs
    continued to glow dimly. I came to the conclusion that the grease they
    used on the slide switch contacts was somewhat conductive. This wasn't
    noticeable on a ragular filament lamp, but the LEDs showed it easily.
    So if you do use a lubricant, make sure it is a good insulator.
     
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