250V, 8A N-channel — what it switches
It comes in a TO-251 (IPAK) through-hole package with short leads, intended for board-mount power switching where a compact, low-profile package is needed.
On-resistance and gate drive — the design-in numbers
That 10 V drive level is the recommended gate voltage for achieving the lowest Rds(on); the part's maximum gate-source rating is ±20 V, giving headroom for a 12 V or 15 V gate rail. A 16 nC gate charge means a modest gate driver current — roughly 16 mA at 100 kHz switching — so the part is suited for medium-frequency SMPS and DC-DC converters without requiring a high-current driver.
Temperature range and power dissipation
This makes the STU7NF25 a candidate for harsh environments — motor drives, industrial power supplies, or downhole equipment where the ambient temperature pushes the junction above 125°C.
No official second-source or successor is listed in the manufacturer's cross-reference; for dual-sourcing, a parametric search against 250 V, 8 A, TO-251 N-channel MOSFETs from other vendors would be the next step.