Hi Jim,

Sound like you would be ok, but:

What specific power MOSFET part # are you using?
What package is it?
What operating temperature range?

I would look into the data sheet on this if you have not. It sounds like it
is
through-hole from your mention of heat-sink in your post, correct?

Regards,

Ken Pergola

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics