Typical applications target offline switched-mode power supplies, PFC stages, and flyback converters where the 800 V breakdown gives headroom for universal AC input (85–265 VAC) with reflected voltage spikes.
The 16.5 nC total gate charge (at 10 V) keeps switching losses manageable in hard-switched topologies — a 100 kHz flyback driving this gate from a 10 V supply draws roughly 16.5 mA average from the driver, well within a standard MOSFET driver's capability. Input capacitance is 450 pF typical at 100 V drain-source bias. That low Ciss means the gate driver does not need to push much current during the Miller plateau, which helps keep turn-on and turn-off edges clean without excessive ringing.
Active production, ROHS3, and sourcing posture
No official second-source cross-reference is listed in the ST portfolio for this exact order code.