Dual asymmetrical MOSFET in a TISON-8 — what the ratings mean for your load switch
The Infineon BSC0911NDATMA1 is a dual N-channel asymmetrical MOSFET from the OptiMOS™ series, housed in a PG-TISON-8 surface-mount package. It integrates two separate FETs on one die: one rated for 18A continuous drain, the other for 30A, both with a 25V drain-to-source breakdown. The asymmetry lets you size the high-side and low-side independently in a synchronous buck or use the higher-rated channel for the main pass and the lower-rated for an OR-ing or load-switch leg — no need to over-spec both halves. The junction temperature range of -55°C to 150°C covers automotive under-hood and industrial outdoor enclosures without derating. Input capacitance is 1600pF at 12V Vds — moderate for a dual 25V part, so the gate driver doesn't need a high peak-current buffer for moderate switching frequencies.
Lifecycle and compliance — no LTB risk, ROHS3 documented
The BSC0911NDATMA1 carries an Active lifecycle status. No PCN-driven BOM freeze is required for this line item today.
Package and mounting — PG-TISON-8 footprint
The supplier device package is PG-TISON-8, a power quad flat no-lead with an exposed pad for thermal dissipation. The 8-PowerTDFN case code is the industry-standard footprint; the exposed pad must be soldered to a copper plane on the PCB to achieve the rated 1W maximum power dissipation. Tape & Reel and Cut Tape options are listed for the shipping medium, so the part fits standard pick-and-place lines.