I am currently engaged in a project that requires replacing an aluminum electrolytic capacitor with an alternative such as a film capacitor (metallized polypropylene), an MLCC capacitor, or a PLZT capacitor. The existing capacitor specifications are 470µF with a voltage rating of 500V, operating at a frequency range of 200 kHz to 800 kHz.
I need guidance in selecting the most suitable replacement type, considering performance, reliability, and compatibility. Additionally, I would appreciate insights into the anticipated differences in terms of physical volume, space requirements, and cost when transitioning to the proposed alternatives.