Infineon introduces LinearFET technology for automotive power distribution applications

Technology news

Oct 27, 2026

Munich, Germany – 27 October 2026 – Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) has launched LinearFET, a new MOSFET technology that enables automotive manufacturers to simplify the design of next-generation solid-state power distribution systems for electric and software-defined vehicles. By integrating solutions for current sharing, inrush current control, and short-circuit robustness directly at the device level, LinearFET removes key technical barriers that have limited the broader adoption of solid-state power distribution architectures in modern vehicles.

As vehicles become increasingly electrified and software-defined, traditional power distribution architectures are reaching their limits. Engineers designing modern power distribution systems face three persistent challenges: safely paralleling MOSFETs to scale current capability, controlling high inrush currents during capacitor charging, and ensuring robust operation during short-circuit events. Addressing these typically requires additional circuitry, complex control strategies, or over-dimensioned components, increasing system complexity, board space, cost, and development effort.

LinearFET addresses all three directly at the MOSFET level: it enables predictable current sharing when paralleling MOSFETs for scalable high-current designs, provides controlled charging of large capacitive loads without external limiters, and delivers enhanced short-circuit robustness to help meet demanding automotive safety requirements. By incorporating these capabilities into the power device, LinearFET simplifies system design while improving robustness and safety.

The technology is suited for applications including power distribution units, battery disconnect switches, solid-state fuse systems, and zonal power architectures. It enables automotive designers to implement more compact and cost-efficient systems with significantly lower implementation complexity while maintaining high reliability and safety standards, supporting the industry's transition from conventional fuse-box architectures toward software-controlled networks required in future electric and software-defined vehicles.

Availability
Products are available. Further information is available at www.infineon.com/linearfet. 

Infineon at electronica 2026 
At this year’s electronica in Munich, Germany, Infineon showcases semiconductor innovations and system solutions for the AI era. As intelligence moves beyond the cloud and into machines, vehicles, industrial systems and everyday devices, technology from Infineon helps machines sense, process, connect and act in a safe, secure and energy-efficient way. At electronica 2026, Infineon will show technologies for Physical AI in robotics, for intelligent edge devices, software-defined electric vehicles, and future power supply from renewable power generation to AI data centers. Infineon will present innovative and energy-efficient solutions for an increasingly intelligent and connected world from November 10 to 13 in Hall C3, Booth 502. More information is available at www.infineon.com/electronica 

About Infineon

Infineon Technologies AG is a global semiconductor leader in power systems and IoT. Infineon drives decarbonization and digitalization with its products and solutions. The Company had around 57,000 employees worldwide (end of September 2025) and generated revenue of about €14.7 billion in the 2025 fiscal year (ending 30 September). Infineon is listed on the Frankfurt Stock Exchange (ticker symbol: IFX) and in the USA on the OTCQX International over-the-counter market (ticker symbol: IFNNY).

 

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LinearFET supports the automotive industry's transition from conventional fuse-box architectures toward software-controlled networks required in future electric and software-defined vehicles.

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Information Number : inftn202610-018

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Oliver Scharfenberg

Spokesperson Automotive, ATV Division (interim)

+49 89 234 38063

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