Hi all
Thanks for your answers.
The MOSFET is for a simple motor switch system. Sometimes it will act simply as a manually triggered switch, but sometimes it will be run in PWM-mode, either from a 555-timer circuit or an AVR-circuit.
When in PWM-mode, the planned frequency will be in the range from 150Hz to 1kHz.
The motor is running on various batteries (yes, you guessed it, its a hobby application), which are typically from 8-12V. The current is typically 50-60A.
There may be more suitable FETs out there, but the IRF3205 is the most widespread one around here (Denmark), and the cheapest one which will accept the currents. I've looked at others, but this one is around 5DKK/pcs at 50pcs where other suitable candidates are typically 5-10DKK more expensive. Who knows why...
Also, this MOSFET has proven itself as very suitable for my applications, as there is plenty of headroom for "sh*t happens" when two are in parallel, so when its summer and the ambient temperature is 40 degrees C, the switches will still happily conduct.
Now I'll take a good look at the International Rectifier line suggested as well as the Digikey part.
If you have more suggestions, I would love to see them. Audioguru, your suggestion is noted, but I'm still also curious about finding a driver IC.
Thanks again