Question about capacitors...

Discussion in 'General Electronics Chat' started by 'Ol Sparky, Dec 22, 2010.

  1. 'Ol Sparky

    Thread Starter New Member

    Dec 22, 2010
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    Whoever is out there that could answer this, I have a question. Everyone knows that capacitance is measured in Farads, but why are most regular capacitors 1-100μ/ 1-100m farads? If one is more it qualifies as a supercapacitor. Why is that???
     
  2. #12

    Expert

    Nov 30, 2010
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    Why is a large fry at McDonald's called "Supersized"???

    People make up these names. If you can find the guy who decided to call large capacitors Supercapacitors, ask him.
     
  3. Markd77

    Senior Member

    Sep 7, 2009
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  4. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    Remember when UHF was really high frequency? Just can't wait for the first MF capacitors. I wonder what they will be called. John
     
  5. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    Supercapacitors were originally labeled because they used a different manufacturing process and materials than other capacitors at the time.

    Now the term is applied to any large value of cap, usually > 0.1F, but more accurately in the Farad range.
     
  6. 'Ol Sparky

    Thread Starter New Member

    Dec 22, 2010
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    Cool, Thanx people! That makes sence. :D
     
  7. marshallf3

    Well-Known Member

    Jul 26, 2010
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    In the old days we had Mica caps, then we had to make out own "gimmicks" as they were referred to back then. Nowadays if I'm operating with above UHF I've got to calculate simple capacitance of the PC board and maybe make a pad big enough to satisfy it with a larger area related to a ground plane. I prefer to use varactor diodes but sometimes you've got to put those in series with a tiny pF cap just to get there.
     
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