Infineon Technologies AG has announced that BRC Solar GmbH has selected its CoolGaN™ Transistor 100 V devices as the core switching technology for the company’s Power Optimizer platform.
The CoolGaN Transistor 100 V family combines high switching performance and power-handling capability in a compact 3 mm × 5 mm package, enabling panel-level maximum power point tracking (MPPT) with high efficiency and power density for solar energy applications. The design win highlights the increasing adoption of gallium nitride technology in renewable energy systems, where efficiency, compact size, and cost effectiveness are key design considerations.
According to Infineon, the CoolGaN Transistor 100 V family enables advanced panel-level MPPT functionality, helping solar systems maximize energy generation under varying operating conditions. The technology is designed to support high switching frequencies, low switching losses, and reduced electromagnetic interference compared with conventional silicon-based solutions.
Johannes Schoiswohl, Senior Vice President and General Manager of Infineon’s GaN Business Line, stated that the adoption of CoolGaN technology by BRC Solar demonstrates the practical benefits of gallium nitride devices in renewable energy applications. He noted that the technology enables higher efficiency, increased power density, and advanced monitoring capabilities while maintaining a compact system footprint.
In rooftop solar installations, partial shading of a single panel can significantly reduce the output of an entire string when maximum power point tracking is implemented only at the string level. Infineon noted that its CoolGaN technology supports cost-effective panel-level MPPT optimization, allowing individual panels to operate closer to their maximum performance and reducing the impact of shading on overall system output.
The company added that the combination of low switching losses, high-frequency operation, and compact package size makes CoolGaN particularly well suited for power optimizer applications, where efficiency, size constraints, and regulatory compliance requirements must be addressed simultaneously.
Pascal Ruisinger, Chief Financial Officer of BRC Solar GmbH, stated that the company has recognized the potential of gallium nitride technology since its founding and views it as an important enabler for high-performance solar power optimizers. He added that both companies share a common goal of utilizing advanced technologies to support the deployment of efficient and affordable renewable energy solutions.
Infineon highlighted that its CoolGaN portfolio includes both discrete and integrated solutions covering a broad range of voltage and power levels. This flexibility enables designers to optimize performance, efficiency, and cost across a wide variety of renewable energy applications.
The resulting Power Optimizer solutions are intended to provide improved energy yield and system performance for residential and commercial rooftop solar installations.
Additional information about Infineon’s CoolGaN portfolio is available through the company’s official channels, while BRC Solar will also showcase its Power Optimizer M600-E and M605-M solutions at The smarter E Europe 2026 exhibition.
Original – Infineon Technologies