Cap selection

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Sorry if this is the wrong section. I am looking to upgrade the caps in the power supply se tion on my car audio sound processor. Tbe picture is below. The stock caps are jamicon tk The 3 larger caps are 1000uf 16v and the two smaller are 470uf 25v. Any advice is appreciated.


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blackgates maybe? 😛

there's a bucnh of good caps.BHC Aerovox, Panasonic FC, Nichicon Gold Tune, Sanyo OsCon, etc..

i usually use panasonic fc sInce they're low esr type and cheap enough 🙂

bypass them w/ some MKPs if you want..

for audio path, you might want to use oscon, silmic, cerafine, etc.for a smaller one like 1uF, or several nF i prefer MKPs or oils..
 
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The chip should all have local HF decoupling to each chip's power pins.
Groups of chips should all have nearly local MF decoupling to the chips supply rail/s.

Once that is attended to thoroughly, the PSU capacitors have little to do. They just recharge the HF and MF decoupling and supply the slower changing currents.
 
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