Infineon IRFS4115TRLPBF: High-Performance Power MOSFET for Automotive and Industrial Applications
The relentless drive for higher efficiency, greater power density, and enhanced reliability in electronic systems places immense demands on power switching components. At the forefront of meeting these challenges is the Infineon IRFS4115TRLPBF, a robust N-channel power MOSFET engineered to excel in the most demanding automotive and industrial environments.
This MOSFET is built upon Infineon's advanced OptiMOS 5 technology, a platform renowned for its exceptional performance characteristics. A key metric for power conversion efficiency is the low typical on-state resistance (R DS(on)) of just 1.5 mΩ at a gate voltage of 10 V. This ultra-low resistance minimizes conduction losses, which is paramount for reducing heat generation and improving overall system efficiency. This directly translates to energy savings, cooler operation, and the potential for smaller heatsinks, thereby reducing the size, weight, and cost of the final design.

The device is housed in a PQFN 5x6 mm package (TO-Leadless), which offers significant advantages over traditional packages. This package features an exposed cooling pad that provides an extremely low thermal resistance path from the silicon die to the PCB. This allows for superior heat dissipation, enabling the MOSFET to handle high continuous drain current (I D) of up to 240 A and repetitive peak current, making it ideal for high-current switching tasks.
Automotive applications are a primary focus for the IRFS4115TRLPBF. It is AEC-Q101 qualified, certifying its reliability for use in harsh automotive environments. It is perfectly suited for roles in electric power steering (EPS) systems, braking systems, and 48V mild-hybrid starter-generators. Furthermore, it is an excellent choice for DC-DC converters in both primary and secondary stages within automotive power supplies.
In the industrial sphere, this MOSFET's robustness and efficiency are equally valuable. It is a compelling solution for high-current motor control drives in robotics and automation, solar inverters, and server and telecom power supplies. Its ability to switch efficiently at high frequencies also supports the trend towards higher switching frequencies in SMPS designs, which allows for the use of smaller passive components.
ICGOOODFIND: The Infineon IRFS4115TRLPBF stands out as a top-tier power MOSFET that masterfully balances ultra-low conduction losses, superior thermal performance, and high reliability. Its AEC-Q101 qualification and robust construction make it an indispensable component for designers pushing the boundaries of performance and durability in next-generation automotive and industrial power systems.
Keywords: OptiMOS 5 Technology, Low R DS(on), AEC-Q101 Qualified, High Current Handling, PQFN Package.
