>
>
>>>Hope this of some interest as I feel that spending $$ un-necessarily on
>>>105C rated capacitors to end up with less ripple current capabilty is a
>>pointless fact.
>>>
>>Ä However, comparing a ripple-current rating for 105 deg C with a
>>ripple current rating for 85 degrees C is hardly valid. My guess is that
>>105 deg C capacitors are going to last longer in a typical anode supply.
>>
>>- later, John
>>
>>
>>Rich...
>
>I have to agree with Rich on this one !
>
>I can not speak for Nichicon but the life and derating curves for the CDE
>380 85c and 381 105c series show a much longer expected life span when
>both are run at 85c. Even at 45c the 105 c cap has a significant edge.
>
>Further, at equivalent 85c temperatures, the ripple ratings are almost
identical.
>
>IMO, in an anode supply of an amp in the 1200W or higher category the
>105c cap will make both life and economical sense.
>
? amen, Carl. I have replaced plenty of 85 deg C rated electrolytics.
I have replaced no 105 deg C rated electrolytics.
>Personally, I would not want to use the ALL Electronics specials in
>anything much above a SB-200 size amp without running temp and leakage
>tests.
>
? Agreed. Anything over 250uA of leakage at the rated V is suspect.
Also, capacitors that are slow to reform are showing signs of aging.
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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