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  1. #1
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    This is a simple capacitor or it has a resistor inside it?

    Hello!

    I have the attached capacitor with HPF graved on it. When I measure with a multimeter, across the leads, it gives me 30ohms both ways. That means it is shorted or has a built in resistor?

    Does HPF stands for High Pass Filter? With means it has the resistor nad capacitor inside it.

    Thanks,
    Bruno

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    Re: This is a simple capacitor or it has a resistor inside it?

    It says right there that it's .25uF 630V. But it shouldn't read 30 ohm. HPF is probably just a manufacturer's number. Throw it away and buy a new one.

    Just a thought: are you waiting a few seconds when you measure the resistance to see if it starts charging?


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  3. #3
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    Re: This is a simple capacitor or it has a resistor inside it?

    It's a shorted HPF type metalized plastic Film capacitor

    Get a better one unless you know it was overstressed somehow.

    Also no saving in file size using 7Z on JPG which is already compressed.
    A best design is easily achieved with good test specs™
    A better question deserves a better answer. ™
    ... so include all your acceptance criteria ( values, % tolerance) and assumptions in your question or any design.

    ... Tony Stewart EE since 1975
    - slightly north of Toronto


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  4. #4
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    Re: This is a simple capacitor or it has a resistor inside it?

    Thanks for the inputs. I will change it.



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