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.
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.
It is ROHS3 compliant.
