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Help reading capacitor code values

Discussion in 'Electronic Basics' started by blue, Aug 11, 2004.

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  1. blue

    blue Guest

    Hi,
    I have a bunch of silver (colour), axial lead capacitors. They are about the
    size of a 1/4 - 1/2 W carbon resistor. I don't understand how to read the
    capacitor values from the markings on them, and webpages I've looked up
    don't help too much. I don't have a meter that reads capacitance, and I
    don't really want to make mistakes with the values. Hoping you can help me
    to understand how to read these. Here are some examples.
    Thank you in advance for any help you can offer.
    Keith
    creekchubbAThotmailDOTcom (replace AT with @, and DOT with .)

    --example1--
    39003
    01-M
    2283
    +419A
    -------------

    --example2--
    39003
    01-M
    2267 J
    +524A
    -------------

    --example3--
    39003
    01-M
    2283 J
    +545A
    -------------

    --example4--
    M39003
    01-
    2408J
    31433
    +737 Y
    --(there is a crown mark between the 7 and the Y on this one-----------

    --example5--
    M39003
    01-2
    2362J
    56289+
    8850F+
    ----------

    --example6--
    C513B
    J683K
    6508B
    +KJ
    -------------
     
  2. Rich Grise

    Rich Grise Guest

    ....
    These are all mil specs. The only way to get the value from this number
    is to have a friend in the Gov't procurement office look up the spec.

    Or be in the military and look it up yourself. ;-)

    The other option, of course, is a C meter.

    Good Luck!
    Rich
     
  3. Zorknob

    Zorknob Guest

    Ex 1 is a 2.2uF, 20V (at 85C or below) axial leaded tant cap. + marks polarity.
    Ex 2 is a 2.7uF, 15V (at 85C or below) axial leaded tant cap. + marks polarity.
    Ex 3 is a 2.2uF, 20V (at 85C or below) axial leaded tant cap. + marks polarity.
    Ex 4 is a 2.7uF, 75V (at 85C or below) axial leaded tant cap. + marks polarity.
    Ex 5 is a 2.2uF, 50V (at 85C or below) axial leaded tant cap. + marks polarity.
    Ex 6, Don't know
     
  4. blue

    blue Guest

    Thanks all for your help!
     
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