Cree Sic Schottky rectifier 2A 600V $.96 ea single unit pricing- lots on hand

[w4bfs]

I've been looking at Schottky diodes ... this Cree unit (C3D02060F) poped up searching Mousers site ... when I was a developer, we would dream of such performance...

I would like to replace strings of 11DQ10 (100V 1A) schottky rectifiers with these ... what are the gotchas ?

[VE3ELQ]

Im using two C3D10060A 600V 10A in parallel as the flyback diodes in my PW modulator, super fast, no issues at all. Haven't tried them as rectifiers but they should do FB.
73s Nigel

[Tom WA3KLR]

Yeah I recently spotted these other two new Cree Z-Rec family SiC diodes recently:

C3D02060A  600 V. 4 A.  TO-220 package

C3D06065A  650 V. 9 A.  TO-220 package.

When I saw these I also thought of incorporating them in my pulse-width modulator for my Class E transmitter project (whenever I get to it again).  I haven't researched prices/availability.

[Opcom]

Only gotchas I know for Schottky are a slightly higher cost. I like the lower forward drop vs. Silicon. Because their recovery time is short, they may stand to transients in inductive circuits better. SiC is supposed to have virtually zero recovery time.

It would be nice to find a simple non-marketing-derived chart for equivalent rectifiers showing Vf and Tr at the same current and temperature.

[Tom WA3KLR]

There is no Trr specification on the Cree data sheets of these diodes since there is NO reverse current; therefore no reverse current pulse to measure against, like with all other diode datasheets until now.

(It might make a good high capacitance varactor diode too!)

C3D06065A data sheet attached:

[WBear2GCR]

the only gotcha I can imagine is that any time you go "fast" there is the potential for exciting a parasitic and/or causing some sort of HF noise (usually that shows up down the line).

that zero recovery thing has me scratching my head a bit, seems like it might be good, although the idea of hitting a brick wall with no overshoot type artifact is amazing in and of itself...

                           _-_-