On-resistance and gate charge — what they mean for your design
The 88 mOhm Rds(on) at 500 mA and 8 V is the figure to use for steady-state conduction loss calculations. At lower gate drive voltages — 1.8 V or 4.5 V — the on-resistance will be higher.
Lifecycle and sourcing
The CSD25481F4T is listed as Active with a ROHS3 compliance status. There is no end-of-life notice or last-time-buy window to track.
