@DrAzzy:
I just came across this thread: http://forum.micasaverde.com/index.php/topic,18103.45.html which mentions the FQP30N06L MOSFETS (the "L" at the end is important, since it denotes the "logic level" compatible version.
Datasheet is here: http://www.fairchildsemi.com/ds/FQ/FQP30N06L.pdf
They are about $0.95 in small quantities, but get cheaper in volume.
The other one mentioned in that thread is the IRLZ44N (http://www.irf.com/product-info/datasheets/data/irlz44n.pdf) which is also a "logic-level gate drive" MOSFET). Be sure not to confuse it with the IRFZ44N which needs more gate voltage to turn on.
Disclaimer: I have not used these, but looking at the datasheet they seem well suited for driving from 3.3V logic. And the TO220 should be easier to mount and cool than the SMDs.
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@DrAzzy:
I just came across this thread: http://forum.micasaverde.com/index.php/topic,18103.45.html which mentions the FQP30N06L MOSFETS (the "L" at the end is important, since it denotes the "logic level" compatible version.
Datasheet is here: http://www.fairchildsemi.com/ds/FQ/FQP30N06L.pdf
They are about $0.95 in small quantities, but get cheaper in volume.
The other one mentioned in that thread is the IRLZ44N (http://www.irf.com/product-info/datasheets/data/irlz44n.pdf) which is also a "logic-level gate drive" MOSFET). Be sure not to confuse it with the IRFZ44N which needs more gate voltage to turn on.
Disclaimer: I have not used these, but looking at the datasheet they seem well suited for driving from 3.3V logic. And the TO220 should be easier to mount and cool than the SMDs.