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Difference in capacitors

  1. Mar 14, 2007 #1
    Can anyone tell me the difference in capacitors. Such as the quality control in producing it, the testings, the specs (low esr), brand names, and if its worth buying a 30 dollars 1.5 farad capacitor v.s. a 170 dollars 1 farad capacitor.

    thanks
     
  2. jcsd
  3. Mar 14, 2007 #2
    Here is some info about capacitors. I don't know much about brand names, I just don't care. ;) But you need to check out farad.net, they got a complete info on capacitors.
     
  4. Mar 14, 2007 #3
    Let me guess foahtein, you're into car audio right?
     
  5. Mar 14, 2007 #4
    thanks for the information, and averagesupernova, i'm not into car audio. I know that majority of the people who purchase cap's are into car audio, but i'm doing a design project that need a cap to have an actuation time of less than 1 sec.
     
  6. Mar 14, 2007 #5
    Well, if you need the capacitor to have a discharging/charging rate of 1 sec, you need to evaluate:

    Time Constant = R*C = Time to reach 63% of final value
     
  7. Mar 14, 2007 #6
    Hmmmm. Actuation time meaning what? More info please. Depending on what you are doing, the ESR and other things might not mean a darn thing.
     
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