SANTA CLARA, CA and KYOTO, Japan, Apr 30, 2025 – ROHM Semiconductor has announced that SMA Solar Technology AG has adopted Semikron Danfoss’ Module featuring ROHM’s latest 2kV SiC MOSFETs for its power conversion solution “Sunny Central FLEX.” This modular platform is built to simplify and improve grid integration for solar power systems, battery storage, and next-generation technologies.
“ROHM’s new 2kV class SiC MOSFETs are engineered to support simple, highly efficient converter topologies for 1500V DC links,’ says Wolfram Harnack, president at ROHM Semiconductor GmbH. “They are developed to meet high reliability standards and withstand cosmic radiation, addressing the demanding conditions and extended lifetime requirements of the photovoltaic sector and beyond. Our SiC device structure, combined with integrated on-chip gate resistance, simplifies device paralleling and facilitates the design of high-power modules. Mass production has already begun,” Harnack adds.
Semikron Danfoss’ SEMITRANS 20 was developed for power-intensive systems and high-speed-switching, representing the next generation of power modules for converters. SEMITRANS 20, equipped with ROHM’s 2kV SiC MOSFETs, plays a key role in SMA’s Sunny Central FLEX platform. “Semikron Danfoss and ROHM have collaborated for over a decade, focusing primarily on the integration of silicon carbide (SiC) technology into power modules. More recently, we have teamed up to incorporate silicon IGBTs as well”, says Peter Sontheimer, senior vice president of Semikron Danfoss’ industry division.
“The new SEMITRANS 20 provides simple and efficient solutions for 1500VDC applications,” adds Sontheimer. “These modules are ideal for solar and energy storage inverters while also benefitting emerging applications such as high-power electric truck chargers and wind converters.”
“The collaboration between SMA, Semikron Danfoss and ROHM demonstrates how the seamless integration of innovative technologies creates the foundation for future-oriented energy projects,” said Bernd Gessner, product manager power conversion systems at SMA. “The demands placed on these solutions are higher than ever. With decades of expertise, SMA meets the highest standards for performance, reliability, durability and flexibility. The fact that Sunny Central FLEX achieves these future-ready benchmarks is also a testament to the outstanding cooperation with our partners who share the same commitment to excellence.”
Source: ROHM Semiconductor
About SMA Solar Technology AG
SMA Solar Technology AG, founded in 1981, is a German company specializing in solar energy solutions. SMA offers various products including solar inverters, energy management systems, and battery storage solutions. These products cater to sectors such as residential, commercial, and utility-scale solar installations. With a global presence in over 20 countries, SMA employs more than 4,300 people worldwide. In the fiscal year 2023, the company reported a revenue reaching €1.904 billion. SMA’s commitment to innovation and sustainability positions it as a key player in advancing renewable energy technologies globally.
About Semikron Danfoss
Semikron Danfoss is a leader in power electronics, formed in 2022 through the merger of SEMIKRON (established in 1951) and Danfoss Silicon Power. Headquartered in Nuremberg, Germany, the company specializes in designing and manufacturing semiconductor devices, power modules, stacks, and systems. Their products are integral to various industries, including automotive, industrial automation, and renewable energy sectors such as wind and solar power. With a workforce exceeding 3,500 employees and production sites across Germany, Slovakia, the United States, Italy, China, India, France, and Brazil, Semikron Danfoss offers a global footprint to serve its customers.
About ROHM
ROHM Co., Ltd., established in 1958, is a Japanese electronics manufacturer headquartered in Kyoto, Japan. The company specializes in designing and producing a wide range of electronic components, including integrated circuits (ICs), semiconductors, and optoelectronics. ROHM serves various industries such as automotive, industrial equipment, consumer electronics, and telecommunications. Their product portfolio encompasses monolithic ICs, power modules, transistors, diodes, light-emitting diodes (LEDs), and capacitors. As of 2017, ROHM reported annual revenues of approximately ¥352 billion. With a global presence, the company operates in regions including Asia, the Americas, and Europe, supplying high-quality electronic components to clients worldwide.