That means STMicroelectronics will continue to supply it for existing production for a time, but they are not accepting new-design wins.
Key ratings and how they drive the design
The 600 V drain-source breakdown voltage gives headroom for universal-input off-line converters. The 1.6 Ohm maximum Rds(on) at 10 V gate drive means the conduction loss at 2.5 A is about 10 W; the 34 nC gate charge keeps the switching transition fast enough for flyback converters without excessive driver burden.
The DPAK (TO-252-3) is a common surface-mount power package with a large exposed tab on the bottom. Rework with hot air is straightforward — preheat the board, hit the tab with a hot nozzle, and lift the part when the solder flows. The tab's thermal mass means the hot air needs to stay on it for a few seconds; rushing it lifts the pad.