Hi Richard, thanks for the suggestion.

In your application, I'm guessing that the current is switched long enough for it to get hot. If I was drawing 2 amps through the device (ie 2 amps per FET) at 12v for upwards of 6 hours would the device get hot? I've looked at the datasheet and it says something about 2w total power dissipation, but I confess my ignorance in translating that into real world instances.

Cheers