News: Microelectronics
28 April 2025
Semikron Danfoss’ module with ROHM’s latest 2kV SiC MOSFETs integrated into SMA’s large-scale solar system
SMA Solar Technology AG (a global specialist in photovoltaic and storage system technology) has adopted Germany-based power electronics firm Semikron Danfoss’ SEMITRANS 20 module with ROHM’s latest 2kV silicon carbide (SiC) MOSFETs inside its new large-scale solar system Sunny Central FLEX, a modular platform designed to streamline and enhance grid connections for large-scale photovoltaic installations, battery storage systems, and emerging technologies.
“ROHM’s new 2kV-class SiC MOSFETs are designed to enable simple and highly efficient converter topologies for 1500V DC-links. It is developed with high-reliability targets and cosmic radiation robustness – addressing the stringent conditions and extended converter lifetime requirements of the photovoltaic sector and beyond,” says Wolfram Harnack, president at Germany-based ROHM Semiconductor GmbH. “The technology of our SiC device structure and integrated on-chip gate resistance eases device paralleling and simplifies high-power module designs,” he adds. “Mass production has started.”
Designed for high-power applications and fast switching operation, Semikron Danfoss’ SEMITRANS 20 is the next generation of power modules for large converters. SEMITRANS 20 with ROHM’s 2kV SiC MOSFETs is an integral part of SMA’s Sunny Central FLEX. “Semikron Danfoss and ROHM have collaborated for over a decade, focusing primarily on the implementation of silicon carbide (SiC) in power modules. More recently, we have teamed up to integrate silicon IGBTs as well,” says Peter Sontheimer, senior VP of Semikron Danfoss’ Industry division. “The new SEMITRANS 20 offers simple, efficient solutions for 1500VDC applications. These modules are ideal for solar and energy storage inverters. Upcoming high-power electric truck chargers, as well as wind converters, will also benefit,” he adds.
“The cooperation between SMA, Semikron Danfoss and ROHM is proof of how the seamless integration of innovative technologies creates the conditions for future-oriented energy projects,” says Bernd Gessner, product manager Power Conversion Systems at SMA. “The demands on these solutions are higher than ever,” he adds. “SMA has decades of expertise and fulfills the highest requirements in terms of performance, reliability, durability and flexibility. The fact that Sunny Central FLEX meets these highest future-proof standards is also the result of the excellent cooperation with our partners,” he adds.
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