Seems like capacitor manufacturers phase out and phase in product lines. Among capacitors now on the market, are there any recommended high quality main filter capacitors? Long life. 105C. High ripple and low ESR. I know a lot of this stuff can be found on data sheets, but am wondering what particular caps folks have had good results with that meet these criteria.
Do you mean mains filter? Class X, Main smoothing for HT or LT?
What sort of current are you drawing?
What sort of current are you drawing?
Parametric search on a reputable electronics stockist's website will find you the best deal, and no counterfeits!
There's little to be gained from limiting yourself to one manufacturer - search by property and find the best value for your requirements.
Many brands have now dedicated series for this jobs, have a look at nichicon, panasonic, elna and see what fits the budget, all are good caps.
I think the OP is referring to 'Reservoir Capacitors' (main filter capacitor!) seeing as low E.S.R. and ripple ratings are mentioned in post #1.
Can’t recommend them at this point, but I may be purchasing some of these for a project here. They have some great specs, still have no idea how the perform in practice.
Kemet alc70
https://content.kemet.com/datasheets/KEM_A4081_ALC70.pdf
Kemet alc70
https://content.kemet.com/datasheets/KEM_A4081_ALC70.pdf
What make/model of amp? Class A? Power consumption? I don't think you should go overboard on ripple, AB amps are not that brutal regarding ripple. 105C, again this might be over kill, but if you insist... Most amps would not get near 85C and keep in mind, the cap rating is at rated voltage & temp & ripple, relax any of these parameters and the expected working life blows out... That said, I use united chemicon SMH (85C) or KMH (105C) for moderate size amps (eg, pioneer SA-8500II, yamaha CA-2010,) not a big fan of Nichicon KG (tan delta/esr...)
Ripple current rating must be adequate or the cap will cook and fail early. The better the
ripple-current rating the less self-heating in the cap, so will increase lifetime upto the point where self-heating becomes small compared to amplifier internal case temperature rise. In general the best rated capacitors aren't actually that great, so you'd normally go for the best
ripple rating you can find.
The ripple comprises mains charging pulses, and amplifier load pulses. The former dominate (rms is high) so the difference between class A and B amps is not huge here, except that class A are at maximum load all the time.
ripple-current rating the less self-heating in the cap, so will increase lifetime upto the point where self-heating becomes small compared to amplifier internal case temperature rise. In general the best rated capacitors aren't actually that great, so you'd normally go for the best
ripple rating you can find.
The ripple comprises mains charging pulses, and amplifier load pulses. The former dominate (rms is high) so the difference between class A and B amps is not huge here, except that class A are at maximum load all the time.