Magnachip Semiconductor Corporation (NYSE: MX) has expanded its power semiconductor portfolio with the introduction of two new sixth-generation 600V Super Junction (SJ) MOSFETs designed for AI server power supplies, EV charging infrastructure, and industrial power applications.
The launch comes as demand for higher-efficiency power conversion technologies accelerates across data centers, electric mobility, and industrial automation markets, where power density, thermal performance, and energy efficiency have become increasingly important design priorities.
The new devices feature low on-resistance values of 36mΩ and 37mΩ, helping reduce conduction losses and improve overall power conversion efficiency. Magnachip said both MOSFETs also integrate a Zener diode between the gate and source terminals to enhance protection against electrostatic discharge (ESD), improving reliability in demanding operating environments.
In addition, the company has reduced chip size compared with the previous generation, allowing for improved integration and greater design flexibility in power system architectures.
One of the newly introduced products, the MMTB60R037G6FZVRH, incorporates a Fast Recovery Body Diode designed to minimize reverse recovery losses and enhance switching performance. The feature is particularly relevant for high-frequency power conversion applications such as AI server power supplies, where efficiency and thermal management are critical factors.
Both devices are housed in a TOLL package and are engineered to support high-power and high-current applications. They also incorporate a Kelvin Source configuration, which helps reduce parasitic inductance and improve switching stability during operation.
The announcement reflects broader trends in the power semiconductor industry. The rapid expansion of artificial intelligence infrastructure, coupled with growing investments in electric vehicle charging networks, is driving demand for advanced power devices capable of delivering higher efficiency while managing increasing power loads.
According to market research firm Omdia, the discrete semiconductor market serving computing and data storage applications is expected to grow from approximately $3.7 billion in 2025 to $5.9 billion by 2030, representing a compound annual growth rate of around 9%. Rising adoption of high-density server architectures is expected to further increase demand for power discrete components, including SJ MOSFETs.
“As demand continues to grow for more efficient and reliable power systems across AI infrastructure, EV charging systems and industrial applications, power semiconductor performance becomes increasingly important,” said Hyuk Woo, Chief Technology Officer of Magnachip.
The new sixth-generation SJ MOSFETs are intended for a range of applications requiring high efficiency and reliability, including AI server power supplies, telecom infrastructure, industrial power systems, and EV charging equipment.
