November 14, 2024 – BASF has recently unveiled an innovative polyphthalamide (PPA) material, Ultramid Advanced N3U41 G6, specifically engineered for the production of Insulated Gate Bipolar Transistor (IGBT) semiconductor housings. In response to the growing demand for high-performance, reliable electronic components in electric vehicles, high-speed trains, smart manufacturing, and renewable energy generation, this new material has been developed to meet the more stringent standards required by these industries.
Ultramid Advanced N3U41 G6 stands out with its exceptional chemical resistance and dimensional stability, significantly enhancing the robustness, long-term performance, and reliability of IGBTs. These attributes are crucial in addressing the urgent needs for energy efficiency, high power density, and optimal performance. BASF already has a strong foundation in the IGBT sector, with its Ultradur PBT material widely recognized. Now, this new PPA material is tailored to the rapidly evolving trends in power electronic equipment, particularly the more challenging demands faced by next-generation IGBTs.
According to AsiaMB’s sources, the new PPA material must not only withstand higher temperatures but also maintain dimensional stability in harsh environments, including humidity, dust, and dirt, while providing continuous electrical insulation. Ultramid Advanced N3U41 G6 meets these requirements with its laser sensitivity, halogen-free flame retardant, high thermal stability, low water absorption rate, and outstanding electrical properties. Notably, its high Comparative Tracking Index (CTI) of up to 600 allows IGBTs to achieve shorter creepage distances and better insulation in power switching applications, supporting the miniaturization of devices. Furthermore, the material has obtained UL certification, demonstrating its excellent Electrical Relative Temperature Index (RTI) value at 150°C.
Semikron Danfoss, a global supplier of power electronic technology, has taken the lead in adopting BASF’s PPA material for the housing of its Semitrans 10 IGBT. This IGBT is widely used in inverters for photovoltaic and wind energy systems. Jörn Grossmann, from Semikron Danfoss’ Research and Pre-Development Department, stated, “IGBTs, as core components of modern electronic products, play a pivotal role in the renewable energy sector. They must operate stably at high temperatures while maintaining long-term performance and reliability. BASF’s PPA material, with its unique properties, has elevated the Semitrans 10 to new heights in terms of performance and efficiency. We chose this material because it provides excellent electrical isolation in harsh environments and has a high tolerance for short-term temperature peaks during assembly.”