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Old 7th March 2004, 01:56 PM   #1
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Question Please help a lazy man !

I am trying to order some caps, but the values in the schematic does not match the on-line parts search values; can someone please check my cap conversion values.

a/ 47nf = 4700pf = 0.47uf

b/ 1mf = 1000uf

Am I correct?
Thanks,
Chris
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Old 7th March 2004, 02:00 PM   #2
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No 4700pf is 4.7nf.

Remeber pf is 1000 times smaller then nano, so you move the decimal place three times to the left as if there was a dot after 4700.0 ei once 470.00 twice 47.000 thrice 4.7000.

one milli farad? I never seen that one before, usually caps are rated in micro farad uF. But for the sake of argument, yes you are right. A milli is 1 thousand time a micro. Bah thats not right edit! You get 1000 micro for 1 milli
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Old 7th March 2004, 02:01 PM   #3
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http://www.electronics2000.co.uk/dat...af/capconv.htm
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Old 7th March 2004, 02:13 PM   #4
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Default Thanks guys

I have bookmarked the site.

The schematic stated ( 1mF ) so I guess it is 1 millifarad which equals 1000uf

Chris
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Old 7th March 2004, 02:24 PM   #5
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Default Re: Thanks guys

Quote:
Originally posted by chris ma

The schematic stated ( 1mF ) so I guess it is 1 millifarad which equals 1000uf
If the schematic is correctly done, yes. Beware, though, that some
people actually write mF when they mean uF (ie. microFarads).

If you are unsure, maybe you could post the schematic so we
can check what function the cap has and what value is reasonable?
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Old 7th March 2004, 02:50 PM   #6
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Default Re: Re: Thanks guys

Quote:
Originally posted by Christer


If the schematic is correctly done, yes. Beware, though, that some
people actually write mF when they mean uF (ie. microFarads).

If you are unsure, maybe you could post the schematic so we
can check what function the cap has and what value is reasonable?

Thanks, I will go and make sure that it is 1mF or 1uf.

Chris
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Old 7th March 2004, 03:14 PM   #7
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It's safe to state, at least in the U.S., that both "mfd" and "ufd" indicate microfarad. As far as I know, no one uses the term millifarad.
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Old 8th March 2004, 05:12 AM   #8
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Default helpful chart

Capacitance Conversion Table
EIA Code
0.000001F 0.001nF 1pF 1R0
0.00001F 0.01nF 10pF 100
0.0001F 0.1nF 100pF 101
0.001F 1nF 1000pF 102
0.01F 10nF 10000pF 103
0.1F 100nF 100000pF 104
1F 1000nF 1000000pF 105
10F 10000nF 10000000pF 106
100F 100000nF 100000000pF 107

===============================


Conflicting information was given:

47nF would be .047uF.
4700pf = .0047uF
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