AUIRF7342Q

Overview

The AUIRF7342Q is an automotive-grade, dual P-channel enhancement-mode MOSFET from the Infineon HEXFET series. It features a 55 V drain-source voltage rating and a continuous drain current of 3.4 A per channel. The device utilizes an SOIC-8 surface-mount package with eight pins. Key electrical parameters include a maximum on-resistance of 170 mΩ, a typical gate charge of 26 nC at 10 V, and a power dissipation capability of 2 W. It operates within a temperature range of -55 °C to +150 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q101 standards for high reliability in vehicle environments.
• Dual independent P-channel configuration integrated into a single compact SOIC-8 package.
• Logic-level gate threshold voltage enabling direct drive from standard microcontrollers or logic circuits.

Applications

• Automotive load switching applications requiring robust P-channel control.
• High-side power management in automotive electronic control units (ECUs).
• Battery protection circuits within vehicle electrical systems.

Procurement Notes

Verify the specific suffix 'Q' confirms AEC-Q101 automotive qualification status against official Infineon documentation. Confirm the package type matches the required SOIC-8 footprint and pinout. Ensure the component meets the target operating temperature range specifications for the intended application environment before finalizing procurement.

Selection Notes

Select this component when an automotive-rated, dual P-channel MOSFET is required for 55 V systems. The 3.4 A current rating suits moderate load switching tasks. Consider the 170 mΩ on-resistance for thermal management requirements. Verify compatibility with available PCB space for the SOIC-8 package and ensure gate drive voltages align with the specified threshold characteristics.

Part Context

This part belongs to the Infineon HEXFET family, which provides optimized power MOSFET solutions. The AUIRF7342Q specifically targets the automotive sector, offering enhanced durability compared to standard industrial counterparts. It serves as a specialized variant designed to withstand the rigorous environmental and operational demands found in modern vehicle electronics architectures.

Replacement Considerations

Consult official Infineon cross-reference guides for verified substitutes. Potential alternatives may include other AEC-Q101 qualified dual P-channel MOSFETs with matching 55 V ratings and SOIC-8 packaging. Ensure any replacement maintains identical pin configurations and electrical performance limits to guarantee system compatibility.