AUIRF9540N

Single FETs, MOSFETs Overview

The AUIRF9540N is an automotive-grade, single P-channel HEXFET power MOSFET manufactured by Infineon Technologies. It features a -100V drain-source voltage rating and supports a continuous drain current of -23A at 25°C. The device utilizes advanced process technology to achieve a maximum on-resistance of 0.117Ω. Designed for robust performance in harsh environments, it operates within a temperature range of -55°C to +175°C and is housed in a TO-220AB through-hole package.

Single FETs, MOSFETs Feature Summary

• Automotive-grade reliability compliant with AEC-Q101 standards
• Advanced HEXFET process technology for low conduction losses
• High thermal stability supporting operation up to 175°C junction temperature
• Robust avalanche energy capability for inductive load switching

Single FETs, MOSFETs Applications

• Automotive lighting control systems
• Power distribution units in vehicles
• Motor driver circuits
• Load switching applications

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix 'AU' indicates automotive qualification status against the official Infineon datasheet. Confirm that the TO-220AB package variant matches the required lead frame and mounting specifications. Ensure compliance with RoHS directives if applicable to the target assembly. Cross-reference the manufacturer's latest lifecycle status to confirm availability and production continuity before finalizing procurement plans.

Single FETs, MOSFETs Selection Notes

Select this component when high-current switching requires automotive-grade durability and extended temperature tolerance. The P-channel configuration simplifies gate drive requirements for high-side switching applications. Evaluate the 0.117Ω on-resistance against thermal dissipation constraints in the specific enclosure. Ensure the TO-220AB footprint aligns with the printed circuit board layout and mechanical clearance requirements.

Single FETs, MOSFETs Part Context

This part belongs to the HEXFET family of power MOSFETs from Infineon. It represents the automotive-qualified version of the standard IRF9540N series. The family is characterized by silicon gate technology and enhanced avalanche ruggedness. It serves as a bridge between general-purpose industrial components and specialized automotive electronics requiring higher reliability standards.

Single FETs, MOSFETs Replacement Considerations

The IRF9540NPBF serves as a non-automotive equivalent with identical electrical characteristics but lacks automotive qualification. Verify pinout compatibility and thermal resistance values when substituting. Ensure the replacement meets the specific voltage and current ratings required by the circuit design.