What this N-channel TrenchMOS™ MOSFET does in the circuit
The D2PAK-7 surface-mount package handles the 300 W dissipation budget when the thermal pad is properly stitched to the board's copper plane.
At 90 A load current with 10 V gate drive, the 3.4 mOhm maximum on-resistance translates to roughly 28 W of conduction loss at the rated current. That is well within the 300 W power dissipation ceiling, but the real-world junction temperature depends on how effectively the D2PAK-7's exposed pad is soldered to a large copper area.
Automotive qualification and temperature range
The ±16 V maximum gate-to-source rating gives margin for noisy 12 V and 24 V electrical systems. Nexperia lists no direct successor, so the BUK6C3R3-75C,118 is the current-generation part for new designs.
Package and footprint considerations
Surface-mount D2PAK-7 (TO-263-7 variant) with the exposed drain pad on the backside. The 15800 pF input capacitance at 25 V drain bias means the gate driver sees a significant capacitive load — a gate resistor in the 1 Ω to 10 Ω range damps ringing without slowing the turn-on too much. The 2.8 V maximum gate threshold at 1 mA drain current confirms it is a logic-level device, but the 10 V drive voltage for minimum Rds(on) is the recommended operating point for full performance.