Dual P-channel pair for 12 V load switching
The IRF7329TRPBF is a dual P-channel MOSFET from Infineon's HEXFET series, rated for 12 V drain-to-source and 9.2 A continuous drain current per channel at 25°C. The two P-channel FETs share a common source in an 8-SOIC package, making it a compact choice for high-side load switching, battery protection, or power-rail OR-ing in portable and industrial gear.
Logic-level gate drive — 17 mOhm at 4.5 Vgs
Maximum on-resistance is 17 mOhm at 9.2 A with 4.5 Vgs — this is the conduction loss figure to budget for in the thermal calculation at your operating current. Gate charge totals 57 nC at 4.5 Vgs, and input capacitance is 3450 pF at 10 Vds. For a switching application, the gate-drive source must supply the peak current to charge that capacitance within the target rise time; at moderate frequencies (below 100 kHz) a standard GPIO with a series resistor handles it cleanly.
Thermal and package — 8-SOIC with 2 W dissipation
Maximum power dissipation is 2 W for the dual die inside the 8-SOIC (150-mil body, 3.90 mm width). The 8-SO package footprint is standard and routes easily on a two-layer board with adequate copper pour for heat spreading.