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mF into uF Answered

I would like to know how much mF makes one uF or uF makes one mF? Please help!!!

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Dantex
Dantex

12 years ago

Wait, is 1 MF same as 1 mF?

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sosrandom
sosrandom

Reply 6 years ago

Values of capacitors are usually specified in ranges of farads (F), millifarads (mF), microfarads (μF), nanofarads (nF) or picofarads (pF)

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Austringer
Austringer

12 years ago

It's ratios of 1000: MegaUnit 1,000,000 Mg, ML, Mm MF KiloUnit 1,000 Kg, KL, Km, KF Unit 1 g, L, m, F MilliUnit 0.001 mg, mL, mm, mF MicroUnit 0.000,001 µg, µL, µm, µF NanoUnit 0.000,000,001 ng, nL, nm, nf Alt and 230 (on the number pad) will get you the µ symbol.

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Goodhart
Goodhart

Reply 12 years ago

And Pico comes in....where ? I have hundreds of pF caps.

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Austringer
Austringer

Reply 12 years ago

After nano - 0.000,000,000,001 I usually use ng and pg at work (I'm a biochemist).

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Goodhart
Goodhart

Reply 12 years ago

Normal capacitor use ranges from uF down to PF

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Austringer
Austringer

Reply 12 years ago

Which is why capacitive biosensor is a buzzword in some circles - if you can stick a constant number of electrons on whatever it is you're measuring when it binds to your sensor and can measure pF of change in capacitance you're looking at femtomolar detection (another 1/1000 down from pico), depending on your voltage.

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westfw
westfw

12 years ago

The "useful" units of capacitance used to be Micro-farads and pico-farads (10-6 and 10-12 Farads, respectively.) In theory, one uses the official metric prefixes of greek-mu (or lower-case u) and p. But back before the US even thought metric MIGHT be useful, and when typewriters didn't have greek letters, it was pretty common to abbreviate "micro" as "m" (and also mmf for picofarads(micro-micro-farads)), especially for capacitors, since clearly a capacitor measured in milli-farads was ridiculous. So if you have a schematic that labels capacitors in "mF", you have to apply some judgment on whether those caps are milliFarads or microFarads. "MF" is almost surely microfarads, since MegaFarads are still impractical! Caps in the milli-farad range probably only show up in power supplies and the output stages of audio amplifiers, and "energy storage" caps.
Alas, we have the same problem with inductors.

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gmoon
gmoon

12 years ago

uF and mF (or MFD, usually) are the same.

The little 'u' is abbreviation of 'micro,' as in MicroFaraDs (MFD), or like uC (micro controller.) It's actually another symbol, but it's a pain to display in many formats...

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Goodhart
Goodhart

Reply 12 years ago

Yes and this will be absolutely true in many books. Only newer ones will display the current forms.

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zachninme
zachninme

12 years ago

There are 1,000 uFs in a mF

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guyfrom7up
guyfrom7up

Reply 12 years ago

your thinking of nano farads, mF and uF are exactly the same

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zachninme
zachninme

Reply 12 years ago

Nanofarad = nF?

And doesn't MF mean megafarad, as in 1 million Farads?

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gmoon
gmoon

Reply 12 years ago

mF as in mega, MF as in micro (depreciated.) You had it right the first time.

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guyfrom7up
guyfrom7up

Reply 12 years ago

my bad

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gmoon
gmoon

Reply 12 years ago

Mine, too.

mF for millifarads, not mega (MF should be megafarads...but that was the old uF, so that's not used, I think.)

Mega is way beyond milli... (1 megafarad = 1000000000 millifarad.)

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gmoon
gmoon

Reply 12 years ago

Good eye, I stand corrected.

From Goodhart's link:

a 1mF cpacitor is labelled 1000uF. This is to reduce confusion between the old MF and the new mF.

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Goodhart
Goodhart

12 years ago

I am not sure I understand the question, but it may be answered here, if you read all the way down: Capacitance:mF & uF