Im going to replace it the two old and very strong,Philips capacitors
150000 uf -10 + 75 %
50 VDC 65 Surge
85 ºC Max Ambient
Ref.
3186GE154U50DPA
The problem is that, only is possible to use a 110 mm high capacitors.
And there are a few caps with this high in the market,im in doubt between the
Kendail K01
100000 uf +/- 20% 76x105mm ESR 8 REF: K01050104__M0J105
Useful live 12000 hours 85ºc
Cornell Dubilier
82000 uf -10+ 75 % 3188GE823U050DPA1 ESR 6.0 76X105mm
Useful live 4000 hours 85ºc
Or
100000 uf -10 +75 % 3186GE104T050APA1 ESR 6.0 76X105mm
Useful live 2000 hours 85ºc
I don´t understand how can it be posible,so big difference useful live.
If anybody knows another brand, it will be a great help for me.
Regards.
150000 uf -10 + 75 %
50 VDC 65 Surge
85 ºC Max Ambient
Ref.
3186GE154U50DPA
The problem is that, only is possible to use a 110 mm high capacitors.
And there are a few caps with this high in the market,im in doubt between the
Kendail K01
100000 uf +/- 20% 76x105mm ESR 8 REF: K01050104__M0J105
Useful live 12000 hours 85ºc
Cornell Dubilier
82000 uf -10+ 75 % 3188GE823U050DPA1 ESR 6.0 76X105mm
Useful live 4000 hours 85ºc
Or
100000 uf -10 +75 % 3186GE104T050APA1 ESR 6.0 76X105mm
Useful live 2000 hours 85ºc
I don´t understand how can it be posible,so big difference useful live.
If anybody knows another brand, it will be a great help for me.
Regards.
IDK its just a numbers game for some BTW the hours get multiplied for every few degrees cooler from the rating!http://www.illinoiscapacitor.com/tech-center/life-calculators.aspx
if you want the longest life just stay with a recognized name brand and step up to 105*C
if you want the longest life just stay with a recognized name brand and step up to 105*C
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Im looking for the best capacitor for audio use, 50V around 100000 uf, in only 110mm high.
I don´t need 105ºc capacitor, cause my power amplifier run very very cold.
I don´t need 105ºc capacitor, cause my power amplifier run very very cold.
oh ok you talk about differences in useful life, if amplifier is cold I wonder what has happened to the old Phillips caps to end their life/ did you test the esr or ripple voltage to determine fail?
any of those would work the same for audio, buy the one that fits
any of those would work the same for audio, buy the one that fits
105ºc Caps is for use in this condition, audio best capacitor, Nichicon Kz, Black Gate, Mundorf... do not work at this temperature.
I think you are wrong in this technical information.
I think you are wrong in this technical information.
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srry nope those brands are for 'Audiophiles' and other clueless folks that cant pick from Industrial specs for themselves.
If you want long life then 105 degree caps will usually last longer because you are using them further away from their max rating. It is not really to do with needing that "thermal handling". infinia is right, pick a quality industrial brand.
If you actually read the ''industrial specs'', you will often find that for the higher temp(105c) and longer-life(hrs) caps,the allowable maximum ripple current is considerably lower than for your average,run of the mill 85c/2000hr caps.
Not surprisingly,I have to replace more ''new'' 105c caps than the 20 year old 85c variety.
It's generally nothing more than a numbers(and pricing) game🙄
I'm presently restoring/rebuilding an old (1975) Audio Research tube power amp,and spent HOURS on the Digikey website selecting the best possible replacement caps: Hrs vs Temp vs Ripple....My head still hurts! My choices are almost always Nichicon,United Chemicon or Panasonic.
Not surprisingly,I have to replace more ''new'' 105c caps than the 20 year old 85c variety.
It's generally nothing more than a numbers(and pricing) game🙄
I'm presently restoring/rebuilding an old (1975) Audio Research tube power amp,and spent HOURS on the Digikey website selecting the best possible replacement caps: Hrs vs Temp vs Ripple....My head still hurts! My choices are almost always Nichicon,United Chemicon or Panasonic.
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Datasheet can show data both on 85 degrees and 105 degrees. For a 105 degrees cap you will find more impressive ripple numbers at 85 degrees too.
either shoddy parts , bad brand names or hokey design. need to dig deeper rather than make silly pronouncements about high temp caps from a couple of repair jobs.
what was the failure mechanism on all these bad "new 105" parts.
I can disprove this if you share the schematics and your dead parts.
with-in reasonable case sizes > I find ripple specs have little to do with performance or long life of caps. so there. how bout that
The operative term there is the "new". The newer caps are of lesser quality than the caps of 20 years ago. That is the factor causing their early replacement rather than the temp rating.
asking for evidence for what goes against established design convention isn't rude where I come from.
really? do you have a link
my impressions electro caps are getting way better> byproducts from all the demands from SMPS tech.
maybe you have bad feeling from the decade old news of the bad cap syndrome from PC motherbds.
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Interesting comment on the ripple current, on the ones I've looked at the higher temp part always had a better ripple current.
For a 105 degrees capacitor datasheet lists ripple current at 105 degrees. A 85 degrees capacitor lists ripple current at 85 degrees. The 105 degrees capacitor datasheet could give you a ripple correction factor table for temperature, then at 85 degrees the 105 degrees capacitor can stand more ripple than at 105 degrees (logically) Factor is between 1.5 and 2 I believe. So for same application if both 85 and 105 caps can be used, apples to apples ripple comparison one would need to multiply the 105 degrees datasheet ripple value.
FWIW ripple current is never measured or controlled by parts OEMs its a derived number*. look at esr both measured at 120Hz and 20KHz or 100KHz is an indication of electrical performance.
Max temp is related to electrolyte and venting options for the case size. operational life hours is another calculation Eg not controlled, their formulas for using delta T is the guideline.
*lower operating temp means more ripple current is allowed due to esr heating
Max temp is related to electrolyte and venting options for the case size. operational life hours is another calculation Eg not controlled, their formulas for using delta T is the guideline.
*lower operating temp means more ripple current is allowed due to esr heating
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