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100nF is equal to ?

Discussion in 'General Electronics Chat' started by Mark68, Aug 15, 2009.

  1. Mark68

    Mark68 New Member

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    100nF is equal to what in pF?

    0.1pF?
     
    Last edited: Aug 15, 2009
  2. OutToLunch

    OutToLunch New Member

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    no - 100000pF

    µ (micro) = .000001
    n (nano) = .000000001
    p (pico) = .000000000001
     
  3. Mark68

    Mark68 New Member

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    so micro is .1uF right?
     
  4. dave

    Dave New Member

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  5. Torben

    Torben Well-Known Member

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    No.

    The 'u' in 'uF' is supposed to be a 'µ', meaning 'micro'. So 1 microfarad is 1µF is 1uF.

    For your original question, micro is greater than nano is greater than pico. So 100nF is not going to be 0.1pF--that would be backward. 100nF is 0.1uF or 100000pF.

    One microfarad is one-millionth of a Farad, and is therefore 0.000001F--or more easily written as 1uF.

    One nanofarad is one billionth of a Farad, so it would take one thousand nanofarads to make one microfarad. One nanofarad is 1nF or 0.001uF.

    One picofarad is one trillionth of a Farad, so it would take one thousand picofarads to make one nanofarad. One picofarad is 1pF or 0.001nF.

    Perhaps the following would be useful (Google and Wikipedia often are): pico- - Wikipedia, the free encyclopedia


    Regards,

    Torben
     
  6. KMoffett

    KMoffett Well-Known Member

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  7. giftiger_wunsch

    giftiger_wunsch New Member

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    Check out the wikipedia page for SI prefixes, that might help you understand. These prefixes apply to all SI Units as well, not just farads.

    Commonly-used 1000-fold orders of magnitude:

    tera- x1,000,000,000,000
    giga- x1,000,000,000
    mega- x1,000,000
    kilo- x1,000
    (unit)
    milli- x0.001
    micro- x0.000,001
    nano- x0.000,000,001
    pico- x0.000,000,000,001

    Hope that helps.
     
    Last edited: Aug 16, 2009
  8. Hero999

    Hero999 Banned

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    One thing: don't use milli-Farads, mF.

    Some old schematics and components have mF instead of µF.

    So I use µF for values up to 99,999µF and F for values > 0.1F or 100,000µF.
     
  9. giftiger_wunsch

    giftiger_wunsch New Member

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    What's the reason for not using mF? I had noticed that it never appeared to be mentioned even when it seemed appropriate; does it clash with a different term mF?
     
  10. Hero999

    Hero999 Banned

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    As I've said, old schematics use mF to denote micro-Farads.
     
  11. Boncuk

    Boncuk New Member

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    Some countries don't have the "µ" in their alphabet. So mF and µF could be mixed up easily.
     
  12. giftiger_wunsch

    giftiger_wunsch New Member

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    Sorry, I misunderstood your explanation. You said some old schematics use mF rather than µF, I didn't realise you meant they used mF to *mean* microfarads.

    Thanks for the clarification Boncuk.
     
    Last edited: Aug 16, 2009
  13. Papabravo

    Papabravo Well-Known Member

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    And before SI prefixes were standardized those old schematics used "mmF" for micro-micro Farads also known as pico Farads in modern parlance.
     
  14. Mark68

    Mark68 New Member

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    Thank You.....I think visual, not technical. If I can get a picture in my mind...I won't forget it..and I understand it...Technical ( just a bunch of #'s ) don't work well with me.

    Thanks Everyone....Appreciated!
     

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