What this MOSFET delivers on the board
It handles a continuous switching current of 38 A and blocks up to 20 V drain-to-source.
At a 10 V gate-source drive and 50 A drain current, the IRL6283MTRPBF guarantees a maximum on-resistance of 0.75 mOhm. That sub-milliohm figure is what a designer uses to calculate I²R losses in a high-current rail. For a 38 A load, conduction loss stays under 1.1 W at the rated current, leaving thermal headroom in a 2.1 W package. The gate threshold voltage of 1.1 V at 100 µA means the device turns on cleanly with logic-level gate drives, though the 0.75 mOhm spec is only valid at 10 V.
The total gate charge at 4.5 V is 158 nC. That is a moderate charge for a 38 A MOSFET — it tells the designer the gate driver must source enough peak current to charge that capacitance within the desired switching interval. At higher switching frequencies, the gate-drive power loss (Qg × Vgs × fsw) becomes significant. The ±12 V maximum gate-source voltage gives margin for gate-drive overshoot in hard-switched topologies.