organic semiconductor capacitance filtering?

[rafafredd]

Ok, I would love to know what this manufacturer wants to say when they state:

Power supply filtration is designed around latest-generation organic semiconductor capacitance instead of a traditional electrolytic-based method, ensuring low power supply noise.

Any info? Or just hype?

 

[edanderson]

organic semiconductor electrolytics can operate at a higher frequency than conventional chemistry electrolytics.  you might measure a normal "100uf" electrolytic cap at 100uf at 1khz or 10khz, but by 100khz, the value will be much lower.  organic semiconductor caps continue to work even with high frequency signals, which is why you see them used in filtering applications for high frequency switching power supplies.

ed

 

[ppa]

organic semiconductor electrolytics are the best electrolytic caps in the world for sound

 

[Samuel Groner]

Sanyo OS-CON. Indeed better with most respect than standard electrolytic. In a linear PSU I doubt it would have any influence on noise though, but surely for switchers. See some LT app notes on low noise DC-DCs.

Samuel