12-01-2017, 12:10 AM
Ron
The ripple rating is not directly tied to mictofarads but rather, with the same cap type, to the sheer physical size. The same current, even if having produced same amount of heat (though it will likely be more due to a possible increase in the ESR in smaller one) will increase the temperature more for a smaller mass and less for a larger mass.
There are few factors.
The caps of old were not even rated for ripple, they were huge and any sensible current in old radios or amps didn't matter. Today the same value cap is 10 times smaller. If not less.
The ripple rating is not directly tied to mictofarads but rather, with the same cap type, to the sheer physical size. The same current, even if having produced same amount of heat (though it will likely be more due to a possible increase in the ESR in smaller one) will increase the temperature more for a smaller mass and less for a larger mass.
There are few factors.
The caps of old were not even rated for ripple, they were huge and any sensible current in old radios or amps didn't matter. Today the same value cap is 10 times smaller. If not less.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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