40 V, 75 A N-channel — conduction-loss and thermal budget
The NP75N04YUG-E1-AY: The NP75N04YUG--AY is a 40 V, 75 A N-channel MOSFET from Nexperia, built on a standard metal-oxide semiconductor process. A 10 V drive rail is required to achieve the rated Rds(on). The part is rated for 1 W dissipation in still air (Ta) and 138 W when the case is held at 25°C — the real usable power depends on the board's thermal stack and airflow.
175°C junction — the thermal headroom
That extra 25°C headroom matters in a high-ambient enclosure or when the load profile includes sustained overload events — the die can absorb more thermal energy before hitting the Tj limit.
