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Electrolytic Capacitor Question

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Nov 14, 2009
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I did some googleing, and couldn't figure this out. :thinking:

If a electrolytic capacitor rated for 40 volts was hooked to up to 12 volts backwards for a few minutes, would it explode?
 





AnthoT

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As was stated above yes it likely would explode or rupture or something like that you should just add a diode like a schottky with the positive end of the diode on the positive end of the capacitor and the negative end on the negative end and that would eliminate that problem. :beer:

-Anthony
 

Hiemal

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Yeah, Electrolytic caps don't like to be abused polarity wise... However, they do make non-polar lytics that are a bit more expensive than standard ones.
 

vk2fro

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if its a BIG 40V capacitor, you may end up with a very loud bang, or a one time use only foul smelling fog machine ;)


Mind you they were using 24V at 100Amps. But backward connecting a 40V cap to 12V such as a car batt may produce a similar disposable fogger ;)

(for those who have seen photonic inductions video of the whistling big cap, I think this one is a little better. Its an energizer bunny cap - keeps going and going....) :p
 
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What is the substance inside one of these things? Is it very toxic?
 

vk2fro

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I wouldn't breathe the fumes if thats what your asking. It smells horrible anyway so you wont hang around long. IF your keen to pop one, I suggest you do it outside ;)
 
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