Infineon IAUS300N08S5N012T: High-Performance 300A AUHET MOSFET for Automotive and Industrial Applications
The relentless advancement of automotive electrification and industrial automation demands power semiconductors that deliver not only superior performance but also exceptional reliability. Addressing this need, Infineon Technologies introduces the IAUS300N08S5N012T, a state-of-the-art N-channel MOSFET that sets a new benchmark for high-current switching applications. This device is engineered to meet the rigorous standards of both automotive and industrial sectors, offering a compelling blend of low power loss, high power density, and robust operation.
At the heart of this MOSFET is Infineon's advanced AUHET (Automotive Ultimate High Efficiency Technology) trench technology. This proprietary process is the key to the component's outstanding characteristics. It enables an ultra-low typical on-state resistance (RDS(on)) of just 1.2 mΩ at a gate voltage of 10 V. Such a low RDS(on) is critical for minimizing conduction losses, which directly translates into higher system efficiency, reduced heat generation, and the possibility for more compact thermal management solutions. This is particularly vital in space-constrained applications like electric vehicle (EV) drivetrains, DC-DC converters, and battery management systems (BMS).

The IAUS300N08S5N012T is rated for a continuous drain current (ID) of 300 A at 25°C, showcasing its ability to handle very high power levels. With a drain-to-source voltage (VDS) of 80 V, it is perfectly suited for 48 V systems that are becoming ubiquitous in mild-hybrid vehicles and advanced robotics. The device also features an industry-leading low gate charge (QG), which significantly reduces switching losses. This combination of low RDS(on) and low QG ensures optimal performance across a wide frequency range, making it highly efficient in both hard- and soft-switching topologies.
Beyond pure performance metrics, this MOSFET is designed for maximum reliability and durability. It is AEC-Q101 qualified, guaranteeing that it meets the stringent quality and reliability requirements for automotive applications. It can withstand harsh operating environments, including extreme temperature fluctuations and high vibrational stress. The robust design also offers an excellent avalanche ruggedness and a wide reverse bias safe operating area (RBSOA), providing an additional layer of protection against voltage spikes and unforeseen transients in demanding industrial settings like motor drives and power supplies.
In summary, the Infineon IAUS300N08S5N012T represents a significant leap forward in power switching technology, offering designers a powerful and reliable component to build the next generation of efficient and compact electronic systems.
ICGOODFIND: A top-tier component for engineers designing high-efficiency, high-power systems in automotive and industrial markets, merging immense current handling with exceptional reliability.
Keywords: AUHET Technology, Ultra-low RDS(on), High Current Switching, AEC-Q101 Qualified, Power Efficiency
