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Best capacitors for power supplies update
Best capacitors for power supplies update
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Old 6th December 2017, 12:06 AM   #111
rebone is online now rebone
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This has been my thinking as well. On the other hand, running 23v on 63v caps, some say that having too high safe margin will dry out the caps faster. Any thoughts on this.
Reason being that Epcos B4155 has 63v as lowest value at 10000uf.
Epcos B4155 does have 22000uf 40v, but higher uf value will supposedly give a slower amp?
Again any thoughts on this?
The output will be running on 23v 900 mA.
Thanks.
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Old 7th December 2017, 06:56 PM   #112
JeffYoung is online now JeffYoung  Ireland
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Best capacitors for power supplies update
I've never heard of the drying-out issue. (Doesn't mean it doesn't exist....)

I've heard of the "slower amp" claim, but I've got to believe it's bollocks. There's certainly no physics behind it.

I'd use the 22,000 / 40V.
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Old 9th December 2017, 03:53 AM   #113
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I was browsing through the inventory at a (the) local electronics supply, where they keep surplus parts from eons ago on their shelves. A pair of large, shiny capacitors caught my attention, and when i picked them up, they were extremely light weight, I shook them and they rattled. I have no idea how old they are, but some of the film caps there are over 40 years old.
Are probably still on the shelf there...
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Old 10th December 2017, 08:25 PM   #114
dimkasta is offline dimkasta  Greece
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Slower with bigger V rating? Really?
I always noticed quite the opposite and it always made sense to me because higher V comes with lower ESR.
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Old 10th December 2017, 08:28 PM   #115
dimkasta is offline dimkasta  Greece
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Btw i love playing with really nos parts. Have a loot at this puppy

Best capacitors for power supplies update-img_20171210_221842-jpg

Not for everything, but lovely for mid range frequencies

Like spice, you have to be careful with those
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Last edited by dimkasta; 10th December 2017 at 08:32 PM.
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