AUIRLZ44ZL

Single FETs, MOSFETs Overview

The AUIRLZ44ZL is an automotive-grade, single N-channel HEXFET power MOSFET manufactured by Infineon Technologies. It utilizes silicon technology and is housed in a TO-220AB through-hole package. The device features a drain-source breakdown voltage (Vds) of 55 V and supports a continuous drain current (Id) of 51 A at case temperature. Key electrical parameters include a maximum on-resistance (Rds(on)) of 13.5 mΩ at 10 V gate drive and a typical gate charge (Qg) of 24 nC. It operates within a junction temperature range of -55 °C to +175 °C with a power dissipation rating of 80 W.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant for reliable operation in vehicle environments
• HEXFET technology optimized for low on-resistance and efficient switching
• Enhanced thermal performance supporting high power dissipation in through-hole packages

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• Motor control circuits in vehicles
• High-current switching applications requiring automotive reliability

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix 'L' against official Infineon documentation to confirm packaging and tape-and-reel specifications. Confirm current product status as obsolete or end-of-life before design-in. Ensure the TO-220AB package matches your PCB footprint requirements. Cross-reference the exact Rds(on) max value for your operating temperature conditions.

Single FETs, MOSFETs Selection Notes

Select this component when automotive certification is mandatory for 55V N-channel switching applications. Compare the 13.5 mΩ Rds(on) against system loss requirements. Verify that the 51 A current rating meets peak load demands. Consider the TO-220AB package for manual assembly or high-power thermal management needs compared to surface-mount alternatives.

Single FETs, MOSFETs Part Context

This part belongs to the HEXFET family of power MOSFETs from Infineon Technologies. It is related to the IRLZ44 series but includes automotive-specific grading and packaging variations. The 'A' prefix typically denotes automotive qualification, while 'ZL' indicates specific packaging and trailing zero configurations distinct from standard industrial variants like IRLZ44N.

Single FETs, MOSFETs Replacement Considerations

Direct replacements may be limited due to the obsolete status. Check for updated automotive HEXFET series from Infineon. Verify pin compatibility with TO-220 packages. Ensure substitute parts meet the same 55V/51A ratings and automotive quality standards.