Capacitor Comparisons: Quality Control, Testing, and Brand Names

[foahtein]

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

 

[antoker]

http://www.uoguelph.ca/~antoon/gadgets/caps/caps.html" , they got a complete info on capacitors.

 

[Averagesupernova]

Let me guess foahtein, you're into car audio right?

 

[foahtein]

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.

 

[MedievalMan]

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

 

[Averagesupernova]

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.