100 V, 192 A N-Channel in D²Pak — the conduction-loss anchor
The IRF100S201: It sits in a TO-263-3 (D²Pak) surface-mount package with the exposed tab serving as the thermal and electrical drain connection.
Maximum on-resistance is 4.2 mOhm at 115 A drain current with 10 V gate drive. That 4.2 mOhm at 115 A is the conduction-loss baseline — at 115 A the I²R loss is about 55 W, which the 441 W package rating can sink with a proper heatsink and airflow. Total gate charge is 255 nC at 10 V. Input capacitance is 9500 pF at 50 V Vds.
Temperature range and package — board-level fit
Operating junction temperature spans -55 °C to 175 °C, covering automotive under-hood and industrial motor-drive environments where the case temperature can climb under sustained load. The TO-263-3 (D²Pak) footprint requires a copper pour on the drain tab for thermal spreading — the 441 W dissipation rating assumes the tab is soldered to a substantial board plane.