60 V, 195 A — the conduction-loss story
The IRFS7534TRLPBF: The headline number that drives the heatsink decision is the 2.4 mOhm max on-resistance at 100 A with 10 V gate drive — that's the conduction loss floor for a high-current switch in a motor drive or DC-DC converter.
Gate charge and switching budget
Total gate charge is 279 nC at 10 V, with an input capacitance of 10034 pF at 25 V drain-source.
Package and thermal path
Surface-mount in a TO-263-7 D²Pak (6 leads plus tab), supplier device package PG-TO263-7. The exposed copper tab on the bottom is the main thermal path — the PCB copper area under that tab sets the junction-to-ambient thermal resistance. A 294 W power dissipation rating at case temperature means the tab must be soldered to a substantial copper pour with thermal vias to inner layers. The ±20 V maximum gate-source voltage gives margin for gate-drive overshoot on long PCB traces.