Subaru to Evaluate onsemi's Embedded Power Platform for Future EVs

onsemi and Subaru begin an early engineering evaluation of Embedded Power Platform to explore next‑generation power systems for future electrified vehicles.

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onsemi (ON) announced a strategic technology engagement with Subaru to evaluate onsemi's Embedded Power Platform (EPP) for future electrified-vehicle architectures.

The arrangement gives Subaru early access to EPP engineering samples, simulation models and technical expertise to assess how an integrated power-system approach could improve vehicle efficiency, performance and development simplicity. EPP embeds multiple semiconductor devices directly into a silicon-based wafer-level package to deliver more power in less space, targeting smaller, lighter and more efficient traction inverters and scalable power levels. The initial phase focuses on early engineering evaluation and technical learning, providing onsemi with customer insights to guide further EPP development.

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Market Reaction – ON

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Following this news, ON has declined 8.52%, reflecting a notable negative market reaction. Our momentum scanner has triggered 83 alerts so far, indicating high trading interest and price volatility. The stock is currently trading at $66.96. Trading volume is elevated at 2.8x the average, suggesting increased selling activity.

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Market Context

ON closed at $73.20, up 2.16% before publication; the Subaru engagement reported no financial terms,...

Analysis

ON closed at $73.20, up 2.16% before publication; the Subaru engagement reported no financial terms, production commitment, or quantified performance result, indicating a technical evaluation rather than a disclosed commercial award.

Key Terms

wafer-level package, traction inverter systems

2 terms

wafer-level package technical

"embedding multiple semiconductor devices directly into a silicon-based wafer-level package"

A wafer-level package is a method of finishing and enclosing semiconductor chips while they are still part of the full silicon wafer, before the wafer is cut into individual dies. By doing the assembly and testing at wafer scale rather than after singulation, it can reduce size, weight, manufacturing steps and cost while often improving electrical and thermal performance; those changes can affect a chipmaker’s unit costs, product competitiveness and supply chain efficiency.

traction inverter systems technical

"support smaller, lighter and more efficient traction inverter systems"

Traction inverter systems are the electronic power units that take stored electrical energy (usually DC from batteries or a catenary) and convert it into the controlled AC power signals that drive electric motors for vehicles such as trains, trams, buses, or electric cars. They matter to investors because they determine a vehicle’s energy efficiency, acceleration, reliability, and maintenance needs—like a car’s gearbox and engine controller rolled into one—and thus affect operating costs and product competitiveness.

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09/16/2026 - 02:30 PM

Strategic technology engagement will explore the potential of advanced power integration for future electrified-vehicle architectures

Summary

Subaru has entered into a strategic technology engagement with onsemi on its Embedded Power Platform (EPP), marking an important milestone in the evaluation of next-generation power architectures for future electrified vehicles. Through early access to engineering samples, simulation models and technical expertise, Subaru will assess how a more integrated approach to power system design would improve efficiency, simplify development and support future vehicle architectures.

SCOTTSDALE, Ariz., Sept. 16, 2026 (GLOBE NEWSWIRE) -- onsemi today announced a strategic technology engagement with Subaru Corporation to evaluate its Embedded Power Platform (EPP). The engagement will give Subaru early access to EPP technology and engineering expertise as the company explores next-generation power architectures for future electrified vehicles.

Power electronics are playing an increasingly important role in vehicle performance, efficiency and design flexibility as automakers expand their electrified vehicle portfolios. The engagement enables Subaru to explore how advances in power semiconductor integration can support broader system-level optimization, including new approaches to power system architecture, efficiency and vehicle design flexibility, while providing onsemi with practical customer insights to support the continued development of EPP.

“Advancing our electrification strategy requires us to continually assess technologies that can improve vehicle performance, efficiency and system integration,” said Tamotsu Inui, Managing Executive Officer Chief General Manager of Engineering Div, Chief General Manager of Technical Research Center, Subaru. “Our early engagement with onsemi gives us an opportunity to evaluate EPP’s integrated approach to power system design while drawing on onsemi’s modeling, simulation and engineering expertise. We are encouraged by the platform’s potential and look forward to continuing our technical engagement as we develop future electrified-vehicle architectures.”

“The transition to electrification is driving increasingly sophisticated vehicle architectures and placing growing pressure on automakers to improve efficiency, simplify development and accelerate innovation. That is creating an opportunity to rethink power systems from the ground up,” said Dinesh Ramanathan, Senior Vice President of Corporate Strategy, onsemi. “Subaru’s engagement brings valuable customer insight to EPP’s continued evolution, using the platform in advanced customer systems and exploring how its integrated power architecture would support the next generation of electrified vehicles.”

Potential Benefits for Future Electrified Vehicles

EPP is a breakthrough power platform that enables more power in less space by embedding multiple semiconductor devices directly into a silicon-based wafer-level package. By transforming the package from a passive housing into an active contributor to electrical and thermal performance, EPP enables a new class of highly integrated power systems designed for the growing demands of vehicle electrification.

For future electrified vehicles, EPP has the potential to support smaller, lighter and more efficient traction inverter systems while reducing development complexity and accelerating time to market. Because the platform can scale across multiple power levels using a common architecture, automakers can reduce engineering effort, minimize requalification costs and accelerate development cycles. The result is a faster path from concept to production, with lower development costs and greater flexibility across future vehicle programs.

These potential advantages are what make early technical collaboration so important. Building on a longstanding relationship between Subaru and onsemi, the collaboration reflects the companies’ shared commitment to advancing technologies that will shape the next generation of vehicle electrification and helping bring those technologies to realization. The initial phase focuses on early engineering evaluation and technical learning as the companies explore advances in power-semiconductor integration that can translate into scalable system-level solutions that meet the performance, efficiency and thermal demands of next-generation mobility.

More Information:

About Embedded Power Platform:

About onsemi
onsemi (Nasdaq: ON) delivers intelligent power and sensing technologies that enable electrification, energy efficiency, safety, and automation across automotive, industrial, and AI data center end-markets. With a highly differentiated and innovative product portfolio, onsemi helps customers solve complex challenges to achieve higher efficiency, improved performance and lower system cost, while supporting a safer, cleaner, and more energy efficient world. The company is part of the S&P 500^® index. Learn more at www.onsemi.com.

onsemi and the onsemi logo are trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the Company references its website in this news release, information on the website is not to be incorporated herein.

Contacts

Krystal Heaton
Director, Head of Public Relations
onsemi
(480) 242-6943
Krystal.Heaton@onsemi.com

Photos accompanying this announcement are available at

https://www.globenewswire.com/NewsRoom/AttachmentNg/9bd1c33b-421b-4a96-9f28-6fa17f103744

https://www.globenewswire.com/NewsRoom/AttachmentNg/68ea0cf7-f8e9-4540-9ce1-23cae9c8d9e5

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What is onsemi's Embedded Power Platform (EPP)?

EPP is a power platform that embeds multiple semiconductor devices directly into a silicon-based wafer-level package. By turning the package into an active contributor to electrical and thermal performance, it enables highly integrated power systems intended to deliver more power in less space for applications such as vehicle electrification.

What potential benefits could EPP offer for future Subaru electrified vehicles?

The company states that EPP could support smaller, lighter and more efficient traction inverter systems while reducing development complexity and time to market. Because the architecture can scale across multiple power levels, automakers may be able to reduce engineering effort, minimize requalification costs and gain greater flexibility across future vehicle programs.

What does the initial phase of the Subaru–onsemi engagement involve?

The initial phase focuses on early engineering evaluation and technical learning. Subaru will use early EPP samples, models and onsemi's engineering support to explore advances in power-semiconductor integration that could translate into scalable system-level solutions meeting performance, efficiency and thermal demands of next-generation mobility.

Subaru to Evaluate onsemi's Embedded Power Platform for Future EVs

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