3.6 mOhm Rds(on) — what it means for conduction loss
At 49 A load, the 3.6 mOhm maximum on-resistance produces about 8.6 W of conduction loss at 25°C junction. That figure climbs with temperature — the datasheet's normalised curve shows Rds(on) roughly doubling at 175°C, so the thermal budget at the 63 W case-rated power dissipation must account for the hot resistance. The 28 nC typical gate charge at 10 V keeps the switching loss manageable for frequencies up to a few hundred kilohertz.
Junction temperature range and deployment environment
That makes it suitable for under-hood automotive electronics, avionics power supplies, and outdoor telecom rectifiers where the ambient can push well past 85°C. The PG-TDSON-8 FL package (SuperSO8) has an exposed drain pad on the bottom — the PCB copper area and thermal vias under that pad set the real-world thermal resistance.