Exploding Polarized Capacitors - Causes and Mechanisms

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Polarized capacitors can explode due to excessive voltage, incorrect polarity, or internal damage. When subjected to high voltage, they can overheat, leading to steam generation or even hydrogen production through electrolysis. Aging capacitors may fail at voltages lower than their rated capacity, increasing the risk of failure. The phenomenon known as "capacitor plague" can also affect their reliability. Understanding these mechanisms is crucial for safe usage and prevention of capacitor failure.
DaTario
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Hi All,

I would like to know what makes a polarized capacitor to explode. Too much voltage? Tension in the wrong direction? What is the mechanism behind. I have exploded accidentally one of those capacitors with plastic cover, with 1000 mu farad and 16 V. The voltage I put was 15 V.

thanks in advance

DaTario
 
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A short causing heating and production of steam, or even electolysis and production of
hydrogen. An old capacitor might short below its rated voltage.

you could have a capacitor affected with this:

http://en.wikipedia.org/wiki/Capacitor_plague"
 
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thank you.

best wishes

DaTario
 
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