News: Microelectronics
23 September 2025
Infineon’s CoolGaN power transistors incorporated into Universal Microelectronics’ 250W adapter for networking PoE applications
Infineon Technologies AG of Munich, Germany is providing CoolGaN power transistors to Taiwan-based Universal Microelectronics Co Ltd (UMEC) for its new 250W adapter for networking Power over Ethernet (PoE) applications.
Infineon says that its CoolGaN transistors are helping UMEC to develop safer and more energy-efficient technology to address modern power system challenges. These solutions are suitable for power electronics across various industries including telecoms, industrial electronics, medical technology, and consumer electronics.
“This collaboration demonstrates the potential of GaN to revolutionize the data-center industry, enabling smaller, more efficient, and reliable power solutions,” says Johannes Schoiswohl, head of Infineon’s GaN business line.
“Partnering with Infineon and utilizing their CoolGaN power transistors in our new 250W adapter has allowed us to create a product that delivers exceptional efficiency and reliability,” says Richard Lin, Power Supply product manager at Universal Microelectronics.
UMEC’s 250W adapter offers efficiency of 95%, a power density increase of about 39%. The CoolGaN transistors reduce power losses, enable switching at frequencies above 200kHz, and improve thermal behavior, which is critical for compact and high-density power supplies. These are said to be critical performance improvements in the global virtual networking market, which is expected to rise at a compound annual growth rate (CAGR) of 26.5% from $48.6bn in 2024 to about $200bn by 2030, according to Grand View Research.
