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Old 11-04-2021, 11:21 AM   #2
PeteS in CA
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Join Date: Aug 2005
City & State: San Jose, CA
My Country: USA, Unsure of Planet
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Default Re: GPU Caps Out of Spec?

Polymer caps don't have a liquid electrolyte that can evaporate over time. BTW, the dielectric in an electrolytic or polymer cap is not the electrolyte or the polymer. The dielectric is a layer of aluminum oxide on the surface of the anode foil. The electrolyte-soaked paper or polymer is a conformal conductor between the cathode foil and the aluminum oxide surface.

Some ultra-low impedance electrolytics have had problems with the electrolyte attacking the aluminum oxide layer, but I've not heard of problems with the polymer affecting the aluminum oxide layer.
PeteS in CA

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