need help figureing out capacitor values

Started by ronnie, January 15, 2005, 05:42:49 AM

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ronnie

Hello, I'm working on a circuit that requires these caps,

120pf
500pf
2.2n
470p
680n
22n
100n

Does anyone one know the actual number values for these, what I mean by that is a 680n=.68nf

If anyone could give me the number values for these caps like this that would help me a great deal, thankyou so much.

Take care,
Ronnie.

Rodgre

Quote from: ronnie120pf
500pf
2.2n
470p
680n
22n
100n

Does anyone one know the actual number values for these, what I mean by that is a 680n=.68nf

Those are the actual values.

500pf (500 picofarads) = .0001uf (microfarads)
2.2n (2.2 nanofarads) = .002uf
470p (470 picofarads) = .00047uf
680n (680 nanofarads) = .00068uf
22n (22 nanofarads) = .002uf
100n (100 nanofarads) = .1uf

Those are the international standards. The US doesn't typically use "nanofarads" for some reason. That is, I wasn't taught that in school (20 years ago!)

Roger


Eric H

Quote from: Rodgre
500pf (500 picofarads) = .0001uf (microfarads)
2.2n (2.2 nanofarads) = .002uf
470p (470 picofarads) = .00047uf
680n (680 nanofarads) = .00068uf
22n (22 nanofarads) = .002uf
100n (100 nanofarads) = .1uf



Roger
120pf = .00012uf
500pf- .0005uf
2.2n= . 0022uf
470p= .00047uf
680n= .68uf
22n= .022uf
100n= .1uf

I've done the same thing myself :-)
Also , you have to be careful with rounding off with picofarads --if you're converting them to microfarads.

-Eric
" I've had it with cheap cables..."
--DougH

puretube

oh, yes, and:
500pF = 0.5nF = 0n5;
2n2 = 2.2nF = 2200pF.

ronnie

Thanks guy's, this helps out a whole lot.