SCOTTSDALE, AZ, Apr 27, 2026 – onsemi and NIO are advancing electric vehicle powertrain design by shifting from 400V to 900V architectures using silicon carbide technology. The collaboration integrates onsemi’s EliteSiC enhanced M3e devices into NIO platforms to handle higher voltage, reduce switching losses and support fast-charging operation. The shift targets next-generation EV systems where power density, thermal control and charging speed affect vehicle performance and range.
Range, Charging and Performance Gains
onsemi’s EliteSiC enhanced M3e devices improve switching performance through changes in body diode characteristics. These devices reduce energy losses (Eon), while maintaining short-circuit robustness. The changes increase system output, improve thermal performance and support drivetrain efficiency.
For drivers, this means:
- More driving range by reducing energy loss as heat in the powertrain
- More consistent acceleration under load and at highway speeds
- Shorter charging times using high-voltage fast-charging systems
- Stable performance over time under demanding conditions
Partnership Moves to 900V Platforms
The collaboration builds on a partnership that began with onsemi’s EliteSiC technology in NIO’s 400V platforms. It supports the transition to 900V architectures. The technology is used in NIO’s ES9 SUV and other models planned for the 2026 Beijing Auto Show.
Executive Perspectives on Collaboration and Industry Direction
“Electrification is entering a new phase where system efficiency and scalability are paramount,” said Hassane El-Khoury, president and CEO of onsemi. “Our expanded collaboration with NIO demonstrates how deep engineering alignment and aligned technology roadmaps can accelerate the transition to high-voltage architectures. With our EliteSiC technology, we are enabling higher performance, improved efficiency, and faster time-to-market for next-generation EV platforms.”
“NIO has consistently pushed the boundaries of intelligent electric mobility,” said Alan Zeng, CEO of XPT, NIO’s powertrain unit. “Our collaboration with onsemi has evolved alongside our technology roadmap – from early 400V systems to today’s 900V platforms. The performance and reliability of onsemi’s EliteSiC technology, combined with strong technical collaboration, are helping us deliver more efficient, high-performance vehicles to our customers worldwide.”
Scaling Next-Generation EV Systems
The collaboration reflects a shift toward integration between automakers and semiconductor suppliers as EVs move to higher-voltage systems. As power requirements increase, system-level coordination between device design and vehicle architecture becomes critical for managing efficiency, thermal performance and charging capability across all EV platforms.
Source: onsemi
About onsemi
onsemi is a U.S. semiconductor company founded in 1999 and headquartered in Scottsdale, AZ. It designs, manufactures and sells power and sensing semiconductors. Its products include discrete power devices such as MOSFETs, IGBTs and silicon carbide modules, as well as power management, analog and mixed-signal chips and sensors. These components manage power, process signals and capture data in electronic systems. onsemi serves automakers, industrial equipment manufacturers, cloud infrastructure providers and other electronics companies. Its products are used in vehicle electrification, driver-assistance systems, factory automation, energy infrastructure, telecommunications, data centers and medical equipment. The company operates 19 manufacturing facilities and 43 design centers worldwide. onsemi reported about 22,600 employees across 33 countries.
About NIO
NIO is a Chinese electric vehicle company founded in 2014 and headquartered in Shanghai, China. It designs, develops and sells electric vehicles, including sedans and sport utility vehicles. The company also provides battery swapping, charging, maintenance and vehicle connectivity services. Its vehicles include driver-assistance systems, sensors and onboard computing for automated functions. NIO serves individual consumers and fleet customers in the automotive and mobility sectors. Its products are used in personal transportation, ride services and mobility applications. The company operates research, design and service functions across global locations and works with partners for vehicle production. NIO reported about 35,000 employees worldwide.