The IRF9540NPBF is a P-channel power MOSFET from Infineon Technologies and belongs to the HEXFET® power MOSFET family. It is designed for power management, switching circuits, and electronic load control applications.
The device features a 100V drain-to-source voltage rating and supports a continuous drain current of up to 23A at a case temperature of 25°C. Its maximum drain-to-source on-resistance is 117mΩ under specified test conditions of VGS = -10V and ID = -11A. The MOSFET also supports a maximum gate-to-source voltage of ±20V and a power dissipation rating of up to 140W at a case temperature of 25°C.
The IRF9540NPBF comes in a TO-220AB through-hole package, supporting convenient PCB mounting and heatsink integration. Typical applications include switched-mode power supplies, DC motor control, inverters, load switching, and other electronic systems requiring P-channel power MOSFETs.
During design and component selection, evaluate load current, supply voltage, switching frequency, thermal conditions, and safe operating limits. Refer to the official datasheet to verify pin assignments, electrical characteristics, safe operating area, and thermal design requirements.
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