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Old 7th November 2012, 01:27 PM   #1
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Default Bipolar capacitor

Gooday all,
Can someone plse give some advice. I need a 22uf 35Vbipolar capacitor which I do not have on hand. Can I take two 47 uf 35V electrolytic capacitors and wire them back to back, negative to negative to achieve a 22uf bipolar ?

Regards
Jan
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Old 7th November 2012, 01:34 PM   #2
asmith is offline asmith  United States
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Yes
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Old 7th November 2012, 01:39 PM   #3
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Quote:
Originally Posted by Vrystaat View Post
Gooday all,
Can someone plse give some advice. I need a 22uf 35Vbipolar capacitor which I do not have on hand. Can I take two 47 uf 35V electrolytic capacitors and wire them back to back, negative to negative to achieve a 22uf bipolar ?

Regards
Jan
Yes that's no problem , double the voltage , halve the capacity and bipolar when connected + to + or - To - .

Cheers ,

Rens
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Old 7th November 2012, 02:05 PM   #4
Elvee is offline Elvee  Belgium
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Quote:
Originally Posted by Vrystaat View Post
Gooday all,
Can someone plse give some advice. I need a 22uf 35Vbipolar capacitor which I do not have on hand. Can I take two 47 uf 35V electrolytic capacitors and wire them back to back, negative to negative to achieve a 22uf bipolar ?

Regards
Jan
Depends on the application: if it is for use with DC, but of unknown/changing polarity, yes, for AC, no.
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Old 7th November 2012, 02:11 PM   #5
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Yes - in simple terms.

Or 2 x 10uF poly..... in parallel. The choice depends on the application and the space you have available.

Bi-Polar electrolytics, like polarised electrolytics have a wide tolerance so the exact value is not critical.
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Old 7th November 2012, 02:29 PM   #6
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What type of power supply will this be used in?
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Old 7th November 2012, 02:59 PM   #7
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Default bipolar caps

Thanks for all the reply's,
The caps are being used on the input of Quasi's speaker protect circuit.
Regards
Jan
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Old 7th November 2012, 03:01 PM   #8
AndrewT is offline AndrewT  Scotland
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Can't see your pic
Attach it instead.
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Old 7th November 2012, 03:17 PM   #9
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Default bipolar caps

Lets try again.dcdetectschematic.pdf
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Old 7th November 2012, 04:02 PM   #10
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Oops, just saw the original bipolars are 63v and not 35v, will get some tomorrow.

Cheers
Jan
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