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10000uF 50V electrolytic capacitor

beta24

10000uF 50V electrolytic capacitor

Postby lundervold » May 4th, 2015, 4:40 pm

Is there any benefit to a 63V as opposed to a 50V cap here?
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Re: 10000uF 50V electrolytic capacitor

Postby amb » May 4th, 2015, 5:41 pm

The actual voltage these caps will "see" is forty-something volts. 50V caps are good enough, but 63V caps are fine too (may be physically larger, depending on brand/model).
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Re: 10000uF 50V electrolytic capacitor

Postby lundervold » May 5th, 2015, 8:08 am

Thank you Ti.

Finally making progress on the β24. :D

Main boards are done. V2 sigma 22 boards will be completed this week. Piltron and SumR transformers have been ordered.
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Re: 10000uF 50V electrolytic capacitor

Postby NZST205 » January 30th, 2016, 11:47 am

Cap ordering stage, thought I'd seen somewhere the size constraints for the 10,000uf caps but now can't find, just reference to Elna or similar, thought I could get Elna part numbers off Ti's photos but can't make them out. Presume High Temp versions best ?
Would appreciate Elna numbers or size contains for standard build as per Ti's photos please.
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Re: 10000uF 50V electrolytic capacitor

Postby BesPav » January 30th, 2016, 12:27 pm

NZST205 wrote:Would appreciate Elna numbers or size


You can use this ones (or try different supplier):
http://ru.mouser.com/Search/m_ProductDe ... CNhcAxI%3d

Very good sound signature and reliability.

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Re: 10000uF 50V electrolytic capacitor

Postby NZST205 » January 30th, 2016, 12:31 pm

Tks BesPav, I thought they'd have to be the high temp 105c versions given the comments about heat in the B24, good to know that 85c is OK, saves a few $s.
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Re: 10000uF 50V electrolytic capacitor

Postby amb » January 30th, 2016, 4:03 pm

For the Class AB version, 85c caps are fine as long as your casing is ventilated. Most of the heat should be external off the heatsinks. For the Class A version I would use 105c caps because of the constantly high temps.

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Re: 10000uF 50V electrolytic capacitor

Postby NZST205 » January 30th, 2016, 5:28 pm

Thank you Ti.
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Re: 10000uF 50V electrolytic capacitor

Postby RainfallSky » October 30th, 2019, 3:10 am

BesPav wrote:
NZST205 wrote:Would appreciate Elna numbers or size


You can use this ones (or try different supplier):
http://ru.mouser.com/Search/m_ProductDe ... CNhcAxI%3d

Very good sound signature and reliability.


Pavel, what would be KEMET snap in analog of RIFA/KEMET PEH200 screw terminal capacitors?
Does it exist? KEMET ALC10 look kind of close.
For unregulated PSU I plan to use 2 boards for each channel with snap in capacitors (or 10mm lead space) up to 40mm width, bleed resistors and active rectifier.

P.S.: Sorry for reviving old thread.
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Re: 10000uF 50V electrolytic capacitor

Postby BesPav » October 30th, 2019, 3:36 am

RainfallSky wrote:Pavel, what would be KEMET snap in analog of RIFA/KEMET PEH200 screw terminal capacitors?
Does it exist?


As fas as i know there are no straight replacement or snap-in model derivative.

In terms of soundind and planning B24 as a fullrange or dedicated MF/HF amplifier i’ld prefer to put anytype relatively huge bulk caps far from B24 boards and place something like Elna RFS2 470u/50V straight on the boards. Of course if you know and like their sounding flavour.
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