On Sun, 03 Feb 2008 08:37:57 GMT, "Bobby" wrote:

I need advise on the following:

The device I am making will use this FET as an output. The device will
operate in the range 12 - 24 volts, depending on the users requirement to
illuminate a few light bulbs.

The FET I want to use can handle up to 16 amps at a max of 100v.

I want to suggest the recommended operating current not exceed 1 amp. as the
FET heats up considerably over 1 amp, and due to space restrictions a
heatsink is not possible.

At 24 volts that would be 24 watts, and at 12 volts that would be 12 watts.

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I missed it earlier, but that's not necessarily true since the power
being dissipated will depend on the voltage being dropped across the
MOSFET and the current through it.

What does your circuit look like?