BUK9237-55A,118

Overview

The BUK9237-55A is a logic level N-channel enhancement mode Field-Effect Transistor utilizing TrenchMOS technology. It features a drain-source voltage of 55 V and a continuous drain current of 32 A at 25 °C. The device exhibits a maximum on-state resistance of 33 mΩ at VGS = 10 V and 37 mΩ at VGS = 5 V. Total power dissipation reaches 77 W with a mounting base temperature of 25 °C. It supports junction temperatures up to 175 °C and includes avalanche ruggedness rated at 76 mJ.

Feature Summary

• Logic level gate drive compatibility for direct interface with standard logic sources
• Automotive qualification compliant with AEC-Q101 standards for critical applications
• High thermal performance supporting operation in demanding environments up to 175 °C

Applications

• 12 V and 24 V load switching
• Automotive power switching circuits
• General purpose power control
• Motor, lamp, and solenoid drivers

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when low conduction losses are required in automotive or general power switching designs. The logic level threshold allows efficient drive from standard logic voltages without additional gate driver stages. Ensure thermal management accommodates the 77 W dissipation rating at the specified mounting base temperature.

Part Context

This part belongs to the Nexperia BUK92xx series of N-channel TrenchMOS FETs. These devices are designed for high-efficiency power switching applications. The DPAK (SOT428) package provides a robust surface-mount solution with an exposed drain pad for effective heat dissipation to the PCB copper area.

Replacement Considerations

Consult official Nexperia documentation for verified cross-reference part numbers. Do not substitute based solely on pinout or generic voltage ratings without confirming electrical parameter alignment.