Inductor Values

Discussion in 'General Electronics Chat' started by Yaser43082, Aug 27, 2013.

  1. Yaser43082

    Thread Starter New Member

    Aug 26, 2013
    7
    0
    Hello All,

    I recently purchased a grab bag of coils and inductors. I was a little dissapointed when they were not labeled to know what their values are.

    My question, how would I go about knowing what their values are. My Multimeter meter does not have Inductance. Is their other ways to accomplish the task?

    Thanks so much in advance for the help.
     
  2. #12

    Expert

    Nov 30, 2010
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  3. Yaser43082

    Thread Starter New Member

    Aug 26, 2013
    7
    0

    Hi thanks for the link, but I dont have the scope or generator:mad:
     
  4. #12

    Expert

    Nov 30, 2010
    16,313
    6,817
    If you can't generate a frequency besides the power line frequency, and you don't have a way to look at the results, you're pretty much stuck. Let's see if anybody else has an idea for you.
     
  5. Yaser43082

    Thread Starter New Member

    Aug 26, 2013
    7
    0
    Would it be possible for me to send a pic and look at the color codes and maybe that would help?
     
  6. #12

    Expert

    Nov 30, 2010
    16,313
    6,817
    Post the photos on this site.
     
  7. Yaser43082

    Thread Starter New Member

    Aug 26, 2013
    7
    0
    here is the photo of the inductors
     
  8. #12

    Expert

    Nov 30, 2010
    16,313
    6,817
    Good picture. I bet somebody can read that, but most are asleep right now.
     
  9. LDC3

    Active Member

    Apr 27, 2013
    920
    160
    They look more like resistors, than inductors. I'm not familiar with the color codes, so I can't read them.
     
  10. odinhg

    Active Member

    Jul 22, 2009
    65
    15
    #12 likes this.
  11. WBahn

    Moderator

    Mar 31, 2012
    17,757
    4,800
    I concur. Assuming they ARE inductors (and it looks like there is bobbin form under the conformal coating), then the base unit is µH. Other than that the color code works the same as for a resistor, including the tolerance. Or at least that is my understanding.
     
    #12 likes this.
  12. szhighstar

    New Member

    Jun 26, 2012
    27
    5
    Inductors cloors codes have been standardized, the color marks or brands represent the inductor's value and tolerance, following is a table that translates the colours and numbers.
    color significant figures or decimal point multiplier inductance tolerance
    Brown 1 10 +/-1%
    Red 2 100 +/-2%
    Orange 3 1000 +/-3%
    Yellow 4 10,000 +/-4%
    Green 5
    Blue 6
    Violet 7
    Gray 8
    White 9
    Black 0 1 +/-20%
    Silver 0.01 +/-10%
    Gold 0.1
     
  13. szhighstar

    New Member

    Jun 26, 2012
    27
    5
    colour significant figures or decimal point multiplier inductance tolerance
    Brown 1 10 +/-1%
    Red 2 100 +/-2%
    Orange 3 1000 +/-3%
    Yellow 4 10000 +/-4%
    Green 5
    Blue 6
    Violet 7
    Gray 8
    white 9
    Black 0 1 +/20%
    Silver 0.01 +/-10%
    Gold 0.1 +/-5%
     
  14. wayneh

    Expert

    Sep 9, 2010
    12,140
    3,054
    I read brown-black-black-silver. Same as odinhg
     
  15. adam555

    Active Member

    Aug 17, 2013
    858
    39
    Would it also help if I send a pic of mine? :/

    [​IMG]

    An approximate value will do...
     
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