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Capacitor terminals

Discussion in 'General Electronics Discussion' started by Lance0070, Jan 31, 2018.

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  1. Lance0070

    Lance0070

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    Jan 23, 2018
    BEB4E67F-096C-4181-8A6B-8D86F77295DB.jpeg C6AFC547-AFA6-450F-A90C-8DFB054C1C72.jpeg Can any one tell me why there’s 4 prongs on one terminal and 2 on the other?
     
  2. Bluejets

    Bluejets

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    1,190
    Oct 5, 2014
    They are simply looping terminals for additional wiring. If you don't need them then forget about them.
     
  3. Lance0070

    Lance0070

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    Jan 23, 2018
    56255315-5B96-4CBB-854E-50A88B415894.jpeg So how would I test it with this multimeter
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,505
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    Jan 21, 2010
    Well, you could try the capacitance range, but there are many other parameters that your multimeter can't test.

    Is there a reason you want to test it? Depending on that reason, your multimeter may only give inconclusive results.
     
  5. Lance0070

    Lance0070

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    Jan 23, 2018
    I just want to know if it’s good or bad
     
  6. Lance0070

    Lance0070

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    Jan 23, 2018
    Which is the capacitor range symbol?
     
  7. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,505
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    Jan 21, 2010
    It's the one with the capacitor symbol. It's between Ω and Hz.

    Well... The capacitance range may tell you the capacitance (as long as your meter can read up to the capacitance of this capacitor).

    It won't tell you if it has high leakage or high ESR.

    Do you have any reason to think it's faulty?
     
  8. Externet

    Externet

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    Aug 24, 2009
    Apply 12V or near to that, any polarity to the terminals for a couple of seconds.
    Measure voltage at the terminals with your multimeter after say 10 minutes. If healthy, there will be a voltage reading. The closer to 12V, the better. If no voltage, it is bad.
     
  9. Lance0070

    Lance0070

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    Jan 23, 2018
    It had like a oily film on it?
     
  10. hevans1944

    hevans1944 Hop - AC8NS

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    Jun 21, 2012
    The picture you uploaded shows what appears to be a 6 μF, 370/400 V AC, non-polarized electrolytic capacitor, These are typically used in AC split-phase motor applications. An oily substance present on the outside of the aluminum can is indicative of leakage of electrolyte from the capacitor. Best to pitch it and replace with a new one.

    Avoid purchasing "new old-stock" or NOS parts from the Internet to replace this capacitor. This type of capacitor will "go bad" just sitting on a shelf, in its original package, after a few dozen years. Even with a "date code" there is no way to predict how long, or even IF, NOS electrolytic capacitors will work. Caveat emptor!
     
  11. Lance0070

    Lance0070

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    Jan 23, 2018
    Sure is a lg split a/c unit, I’ll buy new from a store in town today thanks all for your help
     
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