Consider FET type

MRFE6VP61K25H

DE MAL/G3KEV

Hello Paul,

Yes  I use the still available 32N20 devices, but so long as you watch
the  input  capacitance  you  should be able to substitute quite a few
others.  I  was given a load of these, which are kind of nice and work
superbly :

https://www.wolfspeed.com/media/downloads/176/C3M0065090D.pdf

Tuesday, September 18, 2018, 3:08:35 PM, you wrote:

Interesting. It remains to be seen how many FET deaths will occur
here. Perhaps running them at 36V maximum (summer) will help them
survive less than ideal operating conditions. I was a bit worried
about the 34N20 no longer being available in the large package but
if I am not mistaken you had been able to use 32N20 as a substitute.
Presently I have no spares which is a situation deserving of attention.

Paul

--
Best regards,
Chris                            mailto:[email protected]