thyristor
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Datasheets of Nichicon and Elna audio grade capacitors only have "Tangent of loss angle (tan δ)" measurements. No ripple current or impedance measurements like "regular" caps. What makes "Tangent of loss angle" important with audio circuits?
Here are tan δ of some popular audio grade capacitors:
Nichicon KZ
Nichicon FG
Nichicon KA
Elna Silmic II
Now lets compare some popular Low ESR caps that are recommended for use in switching power supplies.
Nichicon UPW
Panasonic FR
We see that at 25V both UPW and FR are better than "audio grade" KA and as good as FG. Also UPW and FR are rated 105°C and audio ones are 85°C.
So is there any point other than looks to use "audio grade" capacitors? FG and KZ sure are pretty (and big).
Here are tan δ of some popular audio grade capacitors:
Nichicon KZ
Nichicon FG
Nichicon KA
Elna Silmic II
Now lets compare some popular Low ESR caps that are recommended for use in switching power supplies.
Nichicon UPW
Panasonic FR
We see that at 25V both UPW and FR are better than "audio grade" KA and as good as FG. Also UPW and FR are rated 105°C and audio ones are 85°C.
So is there any point other than looks to use "audio grade" capacitors? FG and KZ sure are pretty (and big).