Silicon Carbide Schottky Diodes

poynton · 17th February 2009, 04:56 AM

Hi.

Does anyone know a supplier of silicon carbide schottky diodes "at a reasonable price"?

thanks
Andy

poynton · 17th February 2009, 03:13 PM

poynton · 18th February 2009, 06:04 AM

Nobody used them?

nobody knows a supplier ?

Andy

Tweeker · 18th February 2009, 11:11 AM

Define "reasonable", all the ones I know of are an order of magnitude or two above silicon, almost into GaAs territory. But, not nearly as bad as NOS glass diodes.

poynton · 18th February 2009, 11:54 AM

whatever......

Andy

Tweeker · 18th February 2009, 12:22 PM

Digikey carries them now.

SimontY · 18th February 2009, 04:35 PM

Quote:

Originally posted by poynton
Hi.

Does anyone know a supplier of silicon carbide schottky diodes "at a reasonable price"?

thanks
Andy

Well well well, I didn't know you were so into fancy parts Andy

I'll be watching this thread with interest. The Farnell prices not good enough for you? I think they're ok if you're just doing a pre-amp or output stage in a CD player, but not cheap enough to do all psus...

Simon

SimontY · 24th February 2009, 02:08 PM

Been Googling. Found this:
http://www.audioasylum.com/scripts/t...weaks&m=123567

I'll be saving my money and messing with some HEXFRED types I think.

Simon

Eva · 24th February 2009, 02:16 PM

Please don't waste these diodes in 50Hz rectification... Even the slowest diode bridge will do that work perfectly.

SiC diodes are "fragile" too, they may not survive inrush current in conventional 50Hz rectifier circuits.

There is no SiC at a reasonable price, they are an order of magnitude more expensive than conventional diodes for a reason: No reverse recovery in a 600V diode.

17th February 2009, 04:56 AM	#1
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	Silicon Carbide Schottky Diodes Hi. Does anyone know a supplier of silicon carbide schottky diodes "at a reasonable price"? thanks Andy __________________ If it ain't broke, break it !! Then fix it again. It's called DIY !

17th February 2009, 03:13 PM	#2
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	__________________ If it ain't broke, break it !! Then fix it again. It's called DIY !

18th February 2009, 06:04 AM	#3
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	Nobody used them? nobody knows a supplier ? Andy __________________ If it ain't broke, break it !! Then fix it again. It's called DIY !

18th February 2009, 11:11 AM	#4
Tweeker diyAudio Member Join Date: Dec 2004 Location: Cincinnati, Ohio	Define "reasonable", all the ones I know of are an order of magnitude or two above silicon, almost into GaAs territory. But, not nearly as bad as NOS glass diodes. __________________ Be sure your foil hat has a good low impedance ground.

18th February 2009, 11:54 AM	#5
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	whatever...... Andy __________________ If it ain't broke, break it !! Then fix it again. It's called DIY !


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18th February 2009, 12:22 PM	#6
Tweeker diyAudio Member Join Date: Dec 2004 Location: Cincinnati, Ohio	Digikey carries them now. __________________ Be sure your foil hat has a good low impedance ground.

24th February 2009, 02:08 PM	#8
SimontY diyAudio Member Join Date: May 2003 Location: Sheffield, North England	Been Googling. Found this: http://www.audioasylum.com/scripts/t...weaks&m=123567 I'll be saving my money and messing with some HEXFRED types I think. Simon __________________ Fave. threads: Marantz CD63 \| Philips CD650 \| my 3-way dipoles \| T-bass for dipoles \| EnABL treatment \| Arcam Alpha (CD)

24th February 2009, 02:16 PM	#9
Eva diyAudio Member Join Date: Oct 2003 Location: Near the sea	Please don't waste these diodes in 50Hz rectification... Even the slowest diode bridge will do that work perfectly. SiC diodes are "fragile" too, they may not survive inrush current in conventional 50Hz rectifier circuits. There is no SiC at a reasonable price, they are an order of magnitude more expensive than conventional diodes for a reason: No reverse recovery in a 600V diode. __________________ I use to feel like the small child in The Emperor's New Clothes tale

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