noname Posted February 12, 2004 Report Share Posted February 12, 2004 I have a capacitor, and i have no Idea what value it is. all it says is: 103M I need some help. Can anyone tell me what value this is? Thanks so much. Quote Link to comment Share on other sites More sharing options...
lovekraft Posted February 12, 2004 Report Share Posted February 12, 2004 It should be a .01 uf, 20%, if it uses the standard marking codes. It would help to know where it is and what it looks like. Quote Link to comment Share on other sites More sharing options...
noname Posted February 13, 2004 Author Report Share Posted February 13, 2004 uh, thanks for the help. Its a brown ceramic disk capacitor, sorry, i forgot to mention that. I thought there was something missing. Its in a Theremin. I am going to rebuild it. It has 10uf and 47uf capacitors, and some weird "103M" capacitors, and I was confused about it. How did you tell by those symbols what it was? Quote Link to comment Share on other sites More sharing options...
lovekraft Posted February 13, 2004 Report Share Posted February 13, 2004 The standard code breaks down like this: First two digits = value (in picofarads) Third digit = multiplier (exponent of 10 - scientific notation.) Alpha = tolerance So 103M should be 10 pF * 10^3 (1000) = 10,000 pF, or .01 uF , with a tolerance of 20% (M=20%, K=10%, J=5% , etc.). It works on most ceramic disc and plastic film caps. Quote Link to comment Share on other sites More sharing options...
Southpa Posted February 13, 2004 Report Share Posted February 13, 2004 Here is my father's website with lots of info. Click on "Resources" tab and then "Electronic Technical References". http://members.shaw.ca/roma/ Quote Link to comment Share on other sites More sharing options...
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