Shop OBEX P1 Docs P2 Docs Learn Events
10n capacitor — Parallax Forums

10n capacitor

dr hydradr hydra Posts: 212
edited 2015-05-15 20:56 in General Discussion
Does a 10n capacitor equal .1uf or .01uf?

Thank you

Comments

  • Dave HeinDave Hein Posts: 6,347
    edited 2015-05-14 11:20
    It equals .01uf
  • Heater.Heater. Posts: 21,230
    edited 2015-05-14 11:22
    1u is 10e-6
    1n is 10e-9

    http://en.wikipedia.org/wiki/Micro-
  • localrogerlocalroger Posts: 3,451
    edited 2015-05-14 12:13
    Or more completely,

    1 uF = 1000 nF
    0.1 uF = 100 nF
    0.01 uF = 10 nF
    0.001 uF = 1 nF
  • ercoerco Posts: 20,255
    edited 2015-05-14 19:12
    Or most completely :) :

    1 uF = 1000 nF (I've never seen a 105 marking)
    0.1 uF = 100 nF = 104
    0.01 uF = 10 nF =103
    0.001 uF = 1 nF =102



    Gordon McComb has a helpful page on caps:

    http://www.robotoid.com/appnotes/electronics-capacitor-markings.html
  • Cluso99Cluso99 Posts: 18,069
    edited 2015-05-14 19:18
    Or even more completely...
        1uF =     1 / 1,000,000 F = 1000nF = 1,000 / 1,000,000,000 F
      0.1uF =   0.1 / 1,000,000 F =  100nF =   100 / 1,000,000,000 F
     0.01uF =  0.01 / 1,000,000 F =   10nF =    10 / 1,000,000,000 F
    0.001uF = 0.001 / 1,000,000 F =    1nF =     1 / 1,000,000,000 F = 1000pF = 1,000 / 1,000,000,000,000 F
    
    u (micro) means divide by 1,000,000
    n (nano) means divide by 1,000,000,000
    p (pico) means divide by 1,000,000,000,000
  • localrogerlocalroger Posts: 3,451
    edited 2015-05-14 20:23
    OK we've gotten a little silly here.

    The main thing is caps from 1 nF to 1000 nF, which in olden days (and still today in a lot of places) are called 0.001 uF to 1 uF. Smaller caps still tend to be called by picofarads, and larger ones by microfarads. And as erco points out, as with modern precision resistors, the markings on the cap tend to be two digits plus exponent, which is a useful thing to know when you get to build time.
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2015-05-14 20:59
    erco wrote:
    I've never seen a 105 marking.
    Feast your eyes, L.A. Boy:

    attachment.php?attachmentid=114196&d=1431662378

    -Phil
    312 x 365 - 15K
    105.jpg 15.4K
  • ercoerco Posts: 20,255
    edited 2015-05-15 06:33
    Feast your eyes, L.A. Boy:

    attachment.php?attachmentid=114196&d=1431662378

    -Phil

    Well bust my cityboy buttons, that's one big ceramic cap.

    Of course down here in LA, everyone knows that"105" is the freeway near LAX where Keanu jumped the bus in "Speed".

    http://en.m.wikipedia.org/wiki/Interstate_105_(California)
  • User NameUser Name Posts: 1,451
    edited 2015-05-15 20:56
    localroger wrote: »
    The main thing is caps from 1 nF to 1000 nF, which in olden days (and still today in a lot of places) are called 0.001 uF to 1 uF. Smaller caps still tend to be called by picofarads, and larger ones by microfarads.

    Many a circuit I built back-in-the-day used μμF rather than pF. Why was everyone so put off by nano and pico? Reminds me of early Perry Mason shows - can't call ultraviolet ultraviolet. Have to call it black ray.
Sign In or Register to comment.