BUK9840-55/CUX

$0.48

Description：MOSFET N-CH 55V 5A/10.7A SOT223
Series：TrenchMOS™
Mfr：Nexperia USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:99cfefb79fa1 Category: Single FETs, MOSFETs Brand: Nexperia USA Inc.

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Product introduction

Product Detailed Parameters

Description：MOSFET N-CH 55V 5A/10.7A SOT223
Series：TrenchMOS™
Mfr：Nexperia USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
FET Type：N-Channel
Technology：MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)：55 V
Current - Continuous Drain (Id) @ 25°C：5A (Ta), 10.7A (Tc)
Drive Voltage (Max Rds On, Min Rds On)：5V
Rds On (Max) @ Id, Vgs：40mOhm @ 5A, 5V
Vgs(th) (Max) @ Id：2V @ 1mA
Gate Charge (Qg) (Max) @ Vgs：-
Vgs (Max)：±10V
Input Capacitance (Ciss) (Max) @ Vds：1400 pF @ 25 V
FET Feature：-
Power Dissipation (Max)：8.3W (Tc)
Operating Temperature：-55°C ~ 150°C (TJ)
Grade：Automotive
Qualification：AEC-Q101
Mounting Type：Surface Mount
Supplier Device Package：SOT-223
Package / Case：TO-261-4, TO-261AA

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BUK9840-55/CUX

Overview

The Nexperia BUK9840-55/CUX is an N-channel TrenchMOS logic level FET in a SOT223 package. It features a drain-source voltage of 55 V and a continuous drain current of 10.7 A at 25 °C. The device has a maximum on-state resistance of 40 mΩ at VGS = 5 V and ID = 5 A. Total power dissipation is 8.3 W at 25 °C, with a junction temperature range of -55 °C to 150 °C.

Feature Summary

AEC-Q101 compliant for automotive critical applications
Integrated protection diodes provide electrostatic robustness
Low conduction losses due to low on-state resistance

Applications

Automotive power switching
General purpose power switching

Procurement Notes

Verify the specific suffix /CU against the manufacturer's official ordering information to confirm the exact marking code and package variant. Ensure the component meets the required AEC-Q101 qualification standards for the target automotive application environment before finalizing procurement.

Selection Notes

Select this component for designs requiring a 55 V N-channel MOSFET with logic-level gate drive capability. The SOT223 package provides increased heatsink capabilities suitable for moderate power dissipation requirements up to 8.3 W. Verify thermal management strategies align with the specified junction-to-solder point thermal resistance.

Part Context

This part belongs to the BUK9840 series of N-channel TrenchMOS logic level FETs manufactured by Nexperia (formerly NXP Semiconductors). The series utilizes TrenchMOS technology to achieve low on-state resistance. The product is designed and qualified according to appropriate AEC standards for use in automotive critical applications.