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Product Detailed Parameters
- Description：MOSFET N-CH 55V 32A DPAK
- Series：TrenchMOS™
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：55 V
- Current - Continuous Drain (Id) @ 25°C：32A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：33mOhm @ 15A, 10V
- Vgs(th) (Max) @ Id：2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs：17.6 nC @ 5 V
- Vgs (Max)：±15V
- Input Capacitance (Ciss) (Max) @ Vds：1236 pF @ 25 V
- FET Feature：-
- Power Dissipation (Max)：77W (Tc)
- Operating Temperature：-55°C ~ 175°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- Supplier Device Package：DPAK
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
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Overview
The BUK9237-55A is a logic level N-channel enhancement mode Field-Effect Transistor utilizing TrenchMOS technology in an SOT428 (DPAK) plastic package. Designed for automotive critical applications, it features a drain-source voltage of 55 V and a continuous drain current of 32 A at 25 °C mounting base temperature. The device supports junction temperatures up to 175 °C and offers low on-state resistance, with typical values of 28 mΩ at VGS=10V and 31 mΩ at VGS=5V.
Feature Summary
- Logic level gate drive compatibility suitable for standard control sources
- Automotive qualification compliant with Q101 standards
- High thermal performance rated for operation up to 175 °C
- Low conduction losses enabled by TrenchMOS technology
Applications
- 12 V and 24 V load switching
- Automotive power switching circuits
- General purpose power switching
- Motor, lamp, and solenoid control
Procurement Notes
Verify the specific ordering suffix matches the required package variant. Confirm that the component status aligns with current production availability through official Nexperia channels. Ensure design compliance with the absolute maximum ratings provided in the datasheet to prevent device stress or failure during operation.
Selection Notes
Select this component for applications requiring robust automotive-grade reliability and high current handling capabilities. The logic level threshold allows direct interfacing with common microcontroller outputs without additional gate driver stages. Evaluate thermal management requirements based on the specified junction-to-mounting base thermal resistance for optimal heat dissipation.
Part Context
This part belongs to the BUK9237 series of N-channel TrenchMOS FETs manufactured by Nexperia. It is specifically engineered for demanding environments where low on-resistance and high thermal stability are critical. The DPAK package provides a cost-effective solution for surface-mount assembly in power electronics designs.
Replacement Considerations
Consult official Nexperia documentation for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' devices without validating pinout, electrical parameters, and thermal characteristics against the original specifications.
