AUIRLR3705Z

Single FETs, MOSFETs Overview

The AUIRLR3705Z is an automotive-grade N-channel HEXFET power MOSFET in a D-Pak (TO-252) package. It features a maximum drain-source voltage of 55 V and a logic-level gate threshold voltage ranging from 1.0 V to 3.0 V. The device supports a continuous drain current of up to 89 A (silicon limited) or 42 A (package limited), with a maximum on-resistance of 8.0 mΩ at 10 V gate drive. It operates within a junction temperature range of -55°C to +175°C, includes repetitive avalanche capability, and meets RoHS compliance standards.

Single FETs, MOSFETs Feature Summary

• Automotive qualification per AEC-Q101 standard for enhanced reliability
• Logic-level gate compatibility enabling direct drive from 5 V control signals
• Advanced process technology achieving ultra-low specific on-resistance
• Repetitive avalanche rating allowed up to the maximum junction temperature

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• High-current motor control applications
• DC-DC converter circuits requiring low conduction losses

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the correct packaging format. Standard tubes contain 75 units, while tape and reel options are available in quantities of 3000. Ensure the selected variant matches the required manufacturing assembly process before finalizing procurement orders.

Single FETs, MOSFETs Selection Notes

Select this component when designing automotive circuits that require robust switching performance under high thermal stress. The logic-level gate threshold allows efficient driving from standard microcontrollers without additional level-shifting circuitry. Evaluate the package-limited current rating of 42 A against the PCB copper area and thermal dissipation capabilities to ensure safe operation within the specified junction temperature limits.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's HEXFET family of power MOSFETs, specifically engineered for high-efficiency switching applications. The 'AU' prefix indicates automotive grade qualification, distinguishing it from standard industrial variants. It utilizes silicon-based enhancement mode technology optimized for low resistance per unit area.

Single FETs, MOSFETs Replacement Considerations

Consult the manufacturer's cross-reference tools for verified equivalent parts. Direct replacements must match the 55 V rating, D-Pak package dimensions, and logic-level gate characteristics to maintain circuit functionality.

Single FETs, MOSFETs FAQ

Is the AUIRLR3705Z qualified for automotive applications?

Yes, the device is explicitly qualified according to the AEC-Q101 standard for automotive use.

What is the maximum allowable gate-to-source voltage?

The absolute maximum rating for gate-to-source voltage is ±16 V.