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.
Package and thermal path
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.
Lifecycle and sourcing
The IPD60R145CFD7ATMA1 carries an Active lifecycle status and is ROHS3 compliant. 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.