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Old 27th August 2003, 10:07 PM   #1
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Lightbulb Who knows where to get 1200v Silicon Carbide Schottkys ?

The in paper potencial is enormous . I cant wait to get these

on my amp psu rectifier . But , as a tech novalty these seem very

difficult to get . Who can help ?
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Old 27th August 2003, 10:20 PM   #2
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Hi,

Funny...I've been investigatting rhe same idea.

I know they're real but can't seem to find any vendor for them yet...

Patience...maybe someone has found a source...

Cheers,
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Old 27th August 2003, 11:04 PM   #3
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The manufacturer :

Cree. Inc , USA .

A possible supplier www.builditmall.com/tubebuilder . A friend

of mine ordered from them , his Visa was charged at 28 July , we

emailed to know what is happening , the order number changed

and we didn t like it , possible out of stock after payment due .

Regards
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Old 27th August 2003, 11:12 PM   #4
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Default Fireworks

I've not seen the 1200V Cree, but I've blown up some 600V Cree. They're very fragile compared to ordinary diodes, so I'd be nervous about the 1200V version.
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Old 28th August 2003, 12:50 AM   #5
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They are available at tubebuilder.com along with some other interesting parts.

Pete
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Old 28th August 2003, 09:58 AM   #6
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Hi,

Quote:
They are available at tubebuilder.com along with some other interesting parts.
They seem to be the same people as TugaTweaker pointed to.

Is this the one you're discussing?

CSD05120-CR


Cheers,
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Old 28th August 2003, 11:45 AM   #7
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Yes . About USD 12.5 each .

I planned to change the GZ37 ( Mullard ) by the CSD05120-CR ,

To cope with the B+ rising , maybe i will change the kt88 (GEC )

by TT22 ( GEC ) , then there will be the turn of the miliamps

rising problem too, must get a tranny with 120ma , i will see

then .

Regards
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Old 28th August 2003, 12:33 PM   #8
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Yup, that's same site. I have obtained the 600V devices for use in the filament circuit for the input and drivers in my Dynaclone,( 2-EF86's and a 12AU7) and they worked very well. Their service and delivery was very fast as is response to E Mail.
Hope this helps.
Pete
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Old 28th August 2003, 01:13 PM   #9
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Default Sic is slick.

I have played with Cree's 600v 6 amp SiC schottky in continuous-mode PFC boost regulator switching at 120kHz and feeding a 410v rail for a 300w SMPS. They are VERY VERY good. I feel that we will see a lot more of them as time goes by.

Yeah, the Itsm (surge) current rating is nothing to get excited about, but if you allow for that, they are pretty darn good.

Now, waiting to see who will make a SiC mosfet. Seeing it could run, solder permitting, at 300+ deg C, a class A with pretty small heatsink is a distinct possibility, especially seeing the efectiveness per square inch of a heatsink increases the greater temperature difference between it and the surrounding air.
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Old 29th August 2003, 11:17 AM   #10
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I want apologise the guys at Tubebuilder for the suspicion i thread against them . The CSD05120-CR arrived today and it wasn t their fault at all the fact that it taked a month to be in our hands . Pt duty service is guilty .
Regards
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