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Capacitance question — Parallax Forums

Capacitance question

ArchiverArchiver Posts: 46,084
edited 2000-07-15 19:58 in General Discussion
I just purchased several 0.1uF capacitors. These critters were marked 104
which somehow translates into 0.1uF. Can someone explain this? Which brings
up several another questions. Does 1pF = 0.000000001F (8 zeros) ? Does 1uF =
0.000001F (5 zeros)? Is 1uF = 1000pF? Does pico mean 1 billionth? I have
seen some capacitors labeled nF on schematics published in Europe. What is
nF?

Inquiring minds want to know! Any insight will be appreciated.

TIA

Vic

_____________________________________________________

Victor Fraenckel - The Windman vfraenc1@n...

www.windsway.com
Home of the WindReader Electronic Theodolite
Read the WIND

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2000-07-15 19:50
    nf is nano farads, pf is pico farads, and uf is micro farads.
    .00a00b00c00d

    a = mili
    b = micro
    c = nano
    d = pico
    this good for anything, mili amps, micro farads, etc.

    Norm & Monda
    Cozy MK IV #202
    Ford V-6 Powered
    Original Message
    From: "Victorf" <vfraenc1@n...>
    To: "Stamp Mailing List" <basicstamps@egroups.com >
    Sent: Saturday, July 15, 2000 2:25 PM
    Subject: [noparse][[/noparse]basicstamps] Capacitance question


    > I just purchased several 0.1uF capacitors. These critters were marked 104
    > which somehow translates into 0.1uF. Can someone explain this? Which
    brings
    > up several another questions. Does 1pF = 0.000000001F (8 zeros) ? Does 1uF
    =
    > 0.000001F (5 zeros)? Is 1uF = 1000pF? Does pico mean 1 billionth? I have
    > seen some capacitors labeled nF on schematics published in Europe. What is
    > nF?
    >
    > Inquiring minds want to know! Any insight will be appreciated.
    >
    > TIA
    >
    > Vic
    >
    > _____________________________________________________
    >
    > Victor Fraenckel - The Windman vfraenc1@n...
    >
    > www.windsway.com
    > Home of the WindReader Electronic Theodolite
    > Read the WIND
    >
    >
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2000-07-15 19:58
    At 02:25 PM 7/15/00 -0400, Victorf wrote:
    >I just purchased several 0.1uF capacitors. These critters were marked 104
    >which somehow translates into 0.1uF. Can someone explain this? Which brings
    >up several another questions. Does 1pF = 0.000000001F (8 zeros) ? Does 1uF =
    >0.000001F (5 zeros)? Is 1uF = 1000pF? Does pico mean 1 billionth? I have
    >seen some capacitors labeled nF on schematics published in Europe. What is
    >nF?

    Yep - 104 does mean 0.1 uF. Here's how it works. The capacitor value is
    in pico farads, the numbers work just like resistor code. In other words,
    the first 2 digits are the value, the last digit is the number of zeros
    tacked on the end. So - 104 means 1 0 0000 pF or 100 nF or 0.1 uF (your pick).

    1 pF is 10 to the minus 12 Farads.

    dwayne



    Dwayne Reid <dwayner@p...>
    Trinity Electronics Systems Ltd Edmonton, AB, CANADA
    (780) 489-3199 voice (780) 487-6397 fax

    Celebrating 16 years of Engineering Innovation (1984 - 2000)

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