It comes in an 8-PowerTDFN package (PG-TSDSON-8-FL).
1.5 mOhm Rds(on) — what the low resistance buys you
The 1.5 mOhm figure at 20 A / 10 V is the headline efficiency spec.
Gate charge and switching — 52 nC at 10 V
Gate charge (Qg) of 52 nC at 10 V is moderate for this current class. The 3400 pF input capacitance at 15 V Vds gives the driver a capacitive load to charge each cycle.
Package and mounting — PG-TSDSON-8-FL
The PG-TSDSON-8-FL is a PowerTDFN with an exposed drain pad on the bottom. It requires a solder-paste stencil design that covers the pad area — typically a single large aperture or an array of smaller ones depending on your assembly house's capability. For a 40 A design, plan for at least a 2 oz copper pour on the top layer and multiple thermal vias to inner or bottom layers.
Infineon lists the BSZ0500NSIATMA1 as Active. ROHS3 compliant, no exemptions to track. For volume production or a BOM freeze, this part is safe to qualify in — no lifecycle-driven redesign needed in the near term.
