On-resistance and gate charge — the switching loss trade-off
The IPD60R145CFD7ATMA1: The 145 mOhm Rds(on) at 10 V drive is lower than the 950 mOhm of the IPD50R950CEAUMA1, which means lower conduction loss at the same current. The 31 nC gate charge at 10 V keeps the switching loss manageable for a 600 V part in this Rds(on) class.
The DPAK (TO-252) with 3 leads plus tab is a standard footprint for medium-power surface-mount assembly. The exposed tab carries the drain and needs a good solder joint to the PCB copper pour — treat it as the primary thermal path. 83 W power dissipation at the case means the board layout and any heatsinking determine the real limit.
No LTB or EOL notices are on record for this order code. For dual-sourcing or a lower-current variant, the IPD50R950CEAUMA1 (500 V, 950 mOhm) is a different voltage and Rds(on) class — not a pin-for-pin second source, but a functional alternative if the design can tolerate the higher conduction loss.