80V N-channel in a PG-TSON-8-3 — what it delivers
The Infineon BSC019N08NS5ATMA1 is an N-channel power MOSFET from the OptiMOS™ 5 series, built for high-current switching in the 80V class. It carries a continuous drain current of 237A at the case (Tc) and 28A at ambient (Ta), with a maximum Rds(on) of 1.9 mOhm at 50A and 10V gate drive. The PG-TSON-8-3 footprint (8-PowerTDFN) keeps the board area tight for surface-mount power stages. Junction temperature spans -55°C to 175°C, which covers under-hood automotive, industrial motor drives, and power-supply secondary-side rectification.
Active production — no LTB risk
Infineon lists this part as Active (current production) and ROHS3 compliant. No end-of-life notices or last-time-buy schedules are on record.
PG-TSON-8-3 footprint and thermal management
The PG-TSON-8-3 package (also listed as 8-PowerTDFN) is a surface-mount power package with an exposed drain pad for thermal dissipation. Power dissipation is rated at 3W at ambient (Ta) and 214W at the case (Tc) — the wide spread reflects the difference between free-air convection and a properly heatsunk PCB layout. For designs running above 28A continuous, a thermal via array under the pad and adequate copper area on the top and bottom layers are assumed. Input capacitance (Ciss) is 8600 pF at 40V Vds, which sets the gate-drive current requirement for a given rise time.
