Capacitor type

Discussion in 'General Electronics Chat' started by Andreas, May 28, 2013.

  1. Andreas

    Thread Starter Well-Known Member

    Jan 26, 2009
    80
    4
    Hi folks,

    Just a quick one. Have a motor start-up capacitor which is dud. See the big bulge at the bottom due to excessive heat. No need to explain why, just curious if this is a polarized or non-polarized variety? I'm thinking it is non-polarized (poly) due to the low capacitance value and AC operating voltage but the red and black wires are the reason for my post.

    Any thoughts...

    Tnx.
     
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  2. Gary_P

    New Member

    Apr 4, 2013
    7
    0
  3. Ramussons

    Well-Known Member

    May 3, 2013
    702
    117
    AC capacitors are non polarised. That's why "AC".

    Ramesh
     
  4. Andreas

    Thread Starter Well-Known Member

    Jan 26, 2009
    80
    4
    With this cap I agree but then why the red and black wires? I think this is more of a curiosity. Is this simply a manfacturing thing...?
     
  5. Ramussons

    Well-Known Member

    May 3, 2013
    702
    117
    Yes, Its possible that in manufacturing, the leads may be fabricated for both polarised and non polarised capacitors.

    Ramesh
     
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