I need a kinda large capacitor like 1/2 Farad and 9-12 volts, but I can't get it. What else could I use that would mimic a capacitor thats has fairly quick discharge. (Its nothing really technical, its not going to go into any electronics)
2007-06-21 06:12:53 · 3 answers · asked by pscranton@sbcglobal.net 2 in Consumer Electronics ➔ Other - Electronics
You can get large value capacitors several places. Ebay is one. Just do a search for 1.5 farad capacitors or follow the link below.
2007-06-21 09:26:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Caps like this are available from high end car stereo places. They are used to supply instantaneous current for very high power(like 1000W) car stereo systems. They are rated at ~15V(you can use them at anything below this) and 0.5 to 2.0 farads. They are expensive 50-$200 each. Parts Express in Dayton Ohio, is one outfit that I know sells them. They have a website.
You need to quantify very quick. If you need to discharge in like 1 second or less, nothing can to that except a capacitor. A lead-acid battery(car battery) can give you a lot of juice for like 30 seconds(100-200amps) but doesn't charge very quickly.
Without knowing more about the particular application I couldn't suggest a good substitute.
2007-06-21 17:21:43 · answer #2 · answered by LG 7 · 0⤊ 0⤋
Car stereo, they have large value caps called 'stiffening caps' that are used to provide surge current in car audio.
2007-06-22 02:01:36 · answer #3 · answered by Aurthor D 4 · 0⤊ 0⤋