The 3.6 mOhm maximum Rds(on) at 10V Vgs and 40A is the figure to size conduction losses against. At lower gate voltages the on-resistance climbs — the datasheet shows the drive voltage for achieving the rated Rds(on) is 10V, so a 12V or higher gate rail is the safe call for full saturation. The gate charge is 70 nC at 10V, which is moderate for this current class; a gate driver capable of sourcing and sinking a few amperes peak will keep switching edges clean.
It is an automotive-qualified part (AEC-Q101), so the supply chain is typically managed through authorized distribution channels.
