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The BUK9535-55,127 is an N-channel enhancement mode logic level field-effect power transistor manufactured by NXP USA Inc. utilizing TrenchMOS technology in a TO-220AB plastic envelope. It features very low on-state resistance and integral Zener diodes providing electrostatic discharge (ESD) protection up to 2 kV. The device supports a drain-source voltage of 55 V and a continuous DC drain current of 34 A at 25 °C mounting base temperature. Key electrical parameters include a maximum RDS(ON) of 35 mΩ at VGS = 5 V and ID = 17 A, with a total power dissipation capability of 85 W.
Verify the component status as discontinued or obsolete through official manufacturer channels before procurement planning. Confirm that the TO-220AB package dimensions and pinout align with existing board layouts. Ensure thermal management designs account for the specified junction-to-mounting base thermal resistance values under expected operating conditions.
Select this component for applications requiring robust N-channel switching with high current handling capabilities. The logic level gate threshold allows direct interfacing with standard logic outputs without additional driver stages. Consider the thermal derating curves when designing for ambient temperatures exceeding 25 °C to maintain safe operating area limits.
This part belongs to the Philips Semiconductors (now NXP) TrenchMOS family of power transistors. It represents a specific variant within the broader portfolio of N-channel enhancement mode devices designed for high-efficiency power switching. The TO-220AB package provides a standardized mechanical form factor for through-hole mounting and heatsink attachment.
No public confirmed substitute part numbers are available in the provided documentation.