Key ratings and what they mean for the design
The 650 V Vdss gives headroom for universal-input offline designs with reflected voltage spikes; derate for avalanche energy if the application is unclamped inductive switching.
Package and mounting
The TO-251-3 IPak package has short leads and is designed for through-hole soldering with a low board profile. The supplier device package code PG-TO-251-3-341 is the Infineon-specific variant — verify the lead form and hole pattern against your PCB footprint before committing the layout. The part is ROHS3 compliant, so it fits lead-free assembly processes without exemption paperwork.
Lifecycle and sourcing
The IPU60R1K4C6 is listed as Active in production — no last-time-buy or obsolescence notice. It is ROHS3 compliant. No direct second-source or pin-compatible alternate is listed in the evidence, but the CoolMOS™ family includes many 650 V N-channel parts in similar packages — check the Rds(on) and gate charge trade-offs if you need a functional alternate.