The document describes the features and characteristics of an N-channel 400V - 0.44Ω - 9.5A TO-220/TO-220FP PowerMESH™II power MOSFET. It has extremely high dv/dt capability, 100% avalanche tested, and introduces a new high voltage benchmark. The product is suitable for high current, high speed switching, switch mode power supplies, DC-AC converters for welding equipment and uninterruptible power supplies, and motor drivers.