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Does 470 means it is a 470 pf capacitor or 47 pf?

Discussion in 'Electronic Basics' started by [email protected], Mar 21, 2007.

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  1. Guest

    I have a capacitor which has the mark on its body "470 k 50v."
    Does 470 mean it is a 470 pf or a 47 pf capacitor? Both are possible?
    God bless!

    Daniel
     
  2. Phil Allison

    Phil Allison Guest


    ** Though very rare - I have a bag full of various value Silver Mica caps
    that use the "0" to show there are no naughts!!.

    Eg: 330J = 33 pF, 5%.

    Mind numbingly stupid.

    Only a DMM with capacitance range will settle it.




    ........ Phil
     
  3. John Fields

    John Fields Guest

     
  4. Phil Allison

    Phil Allison Guest

    "John Fields"
    "Phil Allison"

    ** How mind numbingly * STUPID * of John Fields.

    The cap example is appallingly ambiguous.

    His resistor example is not.



    ........ Phil
     
  5. Rich Grise

    Rich Grise Guest

    It reads the same as the resistor color code; it's expressed in numbers
    rather than color bands. The first digit is 4, the second digit is 7, and
    it's followed by zero zeros (or you could say "times ten to the zeroth
    power", which is 1), so it's 47 pf. The K indicates either the
    temperature coefficient or the dielectric type - I'd have to look that up.

    Just for reference, a 470 pf cap would be marked "471", and so on.

    The "50V" should be fairly self-explanatory. :)

    Cheers!
    Rich
     
  6. Phil Allison

    Phil Allison Guest

    "Rich Grise"

    ** But with a monstrous ambiguity that is not there with resistors.



    ** So if you see a ceramic cap marked " 470 K" - what is it's value ?

    As usual - you utterly missed the point.



    ........ Phil
     
  7. MassiveProng

    MassiveProng Guest


    WOW. You got another one right!

    That's two in one week!
     
  8. Eeyore

    Eeyore Guest

    Actually K is 10% tolerance.

    Graham
     
  9. NRen2k5

    NRen2k5 Guest

    How nice of you to contribute.
     
  10. Rich Grise

    Rich Grise Guest

    Well, like the time when I was losing miserably at poker, and quoted my
    Mom: "Unlucky in cards, lucky in love", some guy said, "Yeah, and one out
    of two ain't bad!" ;-)

    Thanks!
    Rich
     
  11. Rich Grise

    Rich Grise Guest

    It's OK. I've been ignoring Phalluson for years.

    Cheers!
    Rich
     
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