IRLZ44ZS

Single FETs, MOSFETs Overview

The IRLZ44ZS is a single N-channel HEXFET power MOSFET manufactured by Infineon Technologies, housed in a D2-Pak (TO-263) surface-mount package. It features a maximum drain-source voltage of 55 V and a continuous drain current of 51 A at 25°C. The device exhibits a maximum on-resistance of 13.5 mΩ at 10 V gate drive and 22.5 mΩ at 4.5 V. Key electrical parameters include a typical gate charge of 24 nC at 4.5 V, a gate-drain charge of 12 nC, and a junction-to-case thermal resistance of 1.87 K/W. It supports a maximum power dissipation of 80 W and operates within a temperature range of -55°C to 175°C.

Single FETs, MOSFETs Feature Summary

• Logic level gate drive capability for direct microcontroller interfacing
• Enhanced switching performance through optimized HEXFET structure
• Robust thermal management with low junction-to-case thermal resistance

Single FETs, MOSFETs Applications

• DC-DC converter circuits
• Motor control systems
• Power management modules

Single FETs, MOSFETs Procurement Notes

Verify the component authenticity by checking the manufacturer's marking code against official Infineon documentation. Confirm the specific suffix 'ZS' corresponds to the D2-Pak package variant. Ensure that the ordering information matches the required voltage and current ratings for the target application circuit design.

Single FETs, MOSFETs Selection Notes

Select this component when a surface-mount solution is required for 55V applications. The logic-level threshold allows efficient driving from standard 3.3V or 5V logic sources. Compare the on-resistance values at relevant gate voltages against system efficiency requirements. Consider the thermal resistance specifications for heat sink design in high-current scenarios.

Single FETs, MOSFETs Part Context

This part belongs to the HEXFET family of power MOSFETs from Infineon. It serves as a surface-mount alternative to through-hole variants like the IRLZ44N. The D2-Pak package provides a balance between power handling capacity and PCB space efficiency compared to smaller SMD packages.

Single FETs, MOSFETs Replacement Considerations

The IRLZ44N is a pin-compatible through-hole alternative with similar electrical characteristics but different packaging. Verify package dimensions and thermal interface requirements when substituting between surface-mount and through-hole technologies.