Vishay OS-CON

[slowpogo]

I see that Mouser carries organic polymer capacitors by Vishay. Their labels are basically exactly the same as Sanyo OS-CONs except for being blue, and actually say "OS-CON" on them.

Are these basically the same capacitors that Sanyo makes--like how there are Kiwames sold by KOA? I always thought OS-CON was a copyrighted brand name.

Like the Sanyos they have super low ESR and ridiculously good ripple current ratings. Anyone used these or know anything else about them?

 

[dsavitsk]

I don't know the whole story, but I built two different DAC boards based on the PMC1794, one with all OS-CON's from Mouser, and one with all BlackGate NX (these are the caps that surround the DAC chip iteself). I think the OS-CON version might sound better. Certainly not worse at any rate.

 

[cobaltmute]

Quote:

Originally Posted by dsavitsk /img/forum/go_quote.gif I don't know the whole story, but I built two different DAC boards based on the PMC1794, one with all OS-CON's from Mouser, and one with all BlackGate NX (these are the caps that surround the DAC chip iteself). I think the OS-CON version might sound better. Certainly not worse at any rate.

The answer on the PCM1794 may be related to the comments here on the PCM1738.

I don't understand enough to know whether it is the size of the cap or the low-ESR that is important. I'm using a United Chemi-Con PS-A on the Vcom on a PCM1794a and it sounds fantastic.

 

[pinkfloyd4ever]

Quote:

Originally Posted by cobaltmute /img/forum/go_quote.gif The answer on the PCM1794 may be related to the comments here on the PCM1738. I don't understand enough to know whether it is the size of the cap or the low-ESR that is important. I'm using a United Chemi-Con PS-A on the Vcom on a PCM1794a and it sounds fantastic.

huh? I don't see a question about the PCM1738, or what that link has to do with the Vishay OS-CONs at Mouser. Doug said both DACs were built with the PCM1794. Doug, I assume the 2 DACs were pretty much identical other than the Blackgates/OS-CON?

 

[luvdunhill]

The Vishay units are very similar to the Sanyo OS-CON. Some are labeled as Vishay/Sprauge at Mouser, I'm assuming this is a mistake. Either way, I can vouch that they have slightly different physical specs, and of course I have no way of verifying the datasheet data. I'm assuming Vishay has assimilated yet another line. Also, check out the Nichicon PLG line as well.

 

[cobaltmute]

The link proposes that the sound of the PCM1738, an advanced segment DAC, can be improved by reducing the ESR of caps on the Vcom pins.

dsavitsk stated that in his DACs based around the PCM1794, an advanced segment DAC, the sound may have improved by putting the super-low ESR OS-CONS in all places, including the Vcom pins.

We have two possibly consistent statements about lower ESR caps improving the sound of an advanced segment DAC. The link also provides a reason why the OS-CONS may have sounded better - due to their lower ESR.

And when choosing parts, I like having good reasons for my choices.

 

[pinkfloyd4ever]

ahh ok. Sorry if I sounded like a d!ck, cobalt

 

[stixx]

Quote:

Anyone used these or know anything else about them?

I've used them as cathode bypass caps in two of my tube amps (C3G and Aikido) with very good results.
Going from electrolytics to Os-Con in the C3G amp was a VERY noticeable improvement in bass tightness and overall clarity.
I used the Os-Cons in my Aikido from the beginning

 

[BrianDonegan]

Vishay bought Sprague (or at least their capacitor business).

Most major manufactures now make organic polymer capacitors for their ultra-low ESR. Sanyo was among the first, which is why their name is so closely tied with them, but you will get great results with just about any of them.

 

[BrianDonegan]

I guess this says it all...

 

[Coreyk78]

Well I guess I should include a small assortment of those on my next Mouser order to try out

 

[NelsonVandal]

I think Sanyo OS-CON sound better than wet electrolytics, even for audio, even compared to BlackGate NX Hi-Q. I've tried SA/SC and SVP.

 

[TimJo]

Quote:

Originally Posted by stixx /img/forum/go_quote.gif I've used them as cathode bypass caps in two of my tube amps (C3G and Aikido) with very good results. Going from electrolytics to Os-Con in the C3G amp was a VERY noticeable improvement in bass tightness and overall clarity. I used the Os-Cons in my Aikido from the beginning

1000UF 16V - $20.44 a piece

So that would be $41 to use them in the Bijou - do you guys think these are worth it?

 

[T.IIZUKA]

Though it is likely already to have known ･･･

Because it was a thread of SANYO OS-CON, it contributes here though it doesn't understand where is appropriate.

It is a bad news concerning OS-CON.
Please read here.
Sanyo Electric Co.,Ltd. Electronic Device Company

Spin off of Sanyo's aluminum electrolytic capacitor business.
http://edc.sanyo.com/english/news/20...r_200904_e.pdf

 

[bmwpowere36m3]

Quote:

Originally Posted by T.IIZUKA /img/forum/go_quote.gif Though it is likely already to have known ･･･ Because it was a thread of SANYO OS-CON, it contributes here though it doesn't understand where is appropriate. It is a bad news concerning OS-CON. Please read here. Sanyo Electric Co.,Ltd. Electronic Device Company Spin off of Sanyo's aluminum electrolytic capacitor business. http://edc.sanyo.com/english/news/20...r_200904_e.pdf

How is this bad, it states that SANYO will continue to produce OS-CON's and POSCAP... but sell off the aluminum electrolytic cap business