Power Box Solution
onsemi has signed a multi-year deal with Volkswagen Group to be the primary supplier of a complete power box solution as part of the automaker’s next-generation traction inverter for its Scalable Systems Platform (SSP).
As described in a press release from onsemi, the solution features silicon carbide-based technologies in an integrated module that can scale across all power levels, including high to low-power traction inverters for all vehicle categories.
“By offering a complete power system solution that encompasses the entire power sub-assembly, we provide Volkswagen Group with a single, simplified modular and scalable platform that maximizes efficiency and performance for their vehicle lineup,” said Hassane El-Khoury, President and CEO of onsemi. “This new approach allows for the customization of power needs and the addition of features for different vehicles without compromising on performance, all while reducing cost.”
Improved Performance & Efficiency
Based on the EliteSiC M3e MOSFETs, onsemi’s power box solution for VW was designed to handle more power, reduce energy losses, and provide a smaller packaging footprint. Three integrated half-bridge modules mounted on a cooling channel help improve system efficiency by ensuring heat is effectively managed from the semiconductor to the coolant encasement.
According to onsemi, this leads to better performance, improved heat control, and increased efficiency, ultimately allowing EV owners to drive further on a single charge.
“By using this integrated solution, Volkswagen Group will be able to easily transition to future EliteSiC-based platforms and remain at the forefront of EV innovation,” onsemi wrote in its press release.
Manufacturing Investment
Volkswagen Group is expected to benefit from onsemi’s planned investment to expand its silicon carbide manufacturing operations in the Czech Republic. The investment would establish an end-to-end production facility in Europe for the traction inverter power system. The proximity of onsemi’s facility would fortify Volkswagen Group’s supply chain while improving logistics and allowing for faster integration into the manufacturing process.
“We are very pleased to have onsemi as a strategic supplier for the power box of the traction inverter for our first tranche in the SSP platform,” said Dirk Große-Loheide, Member of the Extended Executive Committee Group Procurement and Member of the Board Volkswagen Brand for Procurement. “onsemi has convinced us with a deeply verticalized supply chain from the growth of the raw material up to the assembly of the power box.”
“On top of the verticalization, onsemi has furthermore provided a resilient supply concept with regional silicon carbide fabs across Asia, Europe, and the United States,” added Till von Bothmer, Senior Vice President, VW Group Procurement for Powertrain. “In addition, onsemi will continuously provide the latest SiC generation to ensure competitiveness.”
Volkswagen Group In The News
The announcement between onsemi and Volkswagen Group follows the automaker’s recent news about its joint venture with Rivian Automotive. As part of the joint venture, VW and Rivian will focus on developing next-generation electrical architectures and software technology. The partnership is expected to accelerate software development, allowing both to speed innovation, increase scale, and ultimately lower cost per vehicle.
Earlier in 2024, VW revealed the 2025 Jetta sedan. Highlights include a GLI model with a potent turbocharged four-cylinder, new wheel packages and paint colors, and the brand’s IQ.Drive system to enable Travel Assist, a semi-automated driving assistance feature.
“Given the relatively high cost of financing a new vehicle, we are seeing demand for the Jetta surge among consumers looking for maximum value,” said Pablo Di Si, President and CEO of Volkswagen Group of America, during the 2025 Jetta reveal. “From a brand perspective, Jetta has the highest awareness among VW car lines, with a strong loyalty rate and the highest segment share in our portfolio.”
