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Author Topic: Identify one capacitor, how to check working voltage  (Read 1481 times)

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Offline gomarotaTopic starter

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Identify one capacitor, how to check working voltage
« on: March 20, 2016, 06:39:57 pm »
Hi, i have one cap wich seems damaged, but in the top of the cap there is just a number 221(Capacitance = 220pF) for capacitance, i have to buy new one but dont know wich is the working voltage

any hint/tip?


is a car dashboard
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Offline SeanB

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Re: Identify one capacitor, how to check working voltage
« Reply #1 on: March 20, 2016, 06:47:21 pm »
220nH inductor actually.
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Offline TurboTom

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Re: Identify one capacitor, how to check working voltage
« Reply #2 on: March 20, 2016, 07:20:09 pm »
Sure? Considering the size, I'ld rather guess it's 220µH. It's an inductor, not a capacitor, that's agreed.

Cheers,
Thomas
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Offline gomarotaTopic starter

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Re: Identify one capacitor, how to check working voltage
« Reply #3 on: March 20, 2016, 08:37:59 pm »
both are right! thanks i havent had good day today! |O

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Offline uncle_bob

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Re: Identify one capacitor, how to check working voltage
« Reply #4 on: March 28, 2016, 01:32:47 am »
Quote from: gomarota on March 20, 2016, 08:37:59 pm
both are right! thanks i havent had good day today! |O

Hi

So now, rather than the working voltage, you need the current spec's on the inductor. You may want to figure out what it is doing as well. That will give you an idea of the frequency it needs to operate to.

Bob
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