onsemi announced a design win with Sineng Electric. The company’s latest-generation hybrid power integrated modules (PIMs) will be used in Sineng’s next-generation 430 kW liquid-cooled energy storage systems (ESS) and 320 kW utility-scale solar string inverter.
The hybrid PIM features onsemi’s FS7 insulated-gate bipolar transistor (IGBT) and EliteSiC technology in a high-density F5BP package. In benchmark testing against competing power modules, the FS7-based hybrid PIM delivered a 0.07% efficiency improvement and reduced losses by 225 W in a 320 kW solar inverter configuration.
The modules offer up to a 0.1% efficiency increase and enable a 32% improvement in power-to-weight performance at the inverter system level. Compared to previous generations, they provide up to 8% lower power dissipation and 10% lower switching losses. The advanced direct bonded copper (DBC) substrate design minimizes stray inductance and lowers thermal resistance to the heat sink by 9.3%.
These changes allow the total system power of a solar inverter to increase from 320 kW to 350 kW within the same footprint. The modules also feature an optimized electrical layout and an innovative baseplate design for thermal management.
In Sineng’s 430 kW string ESS, the modules contribute to a 0.75% increase in round-trip efficiency (RTE), a 5% reduction in auxiliary power consumption, higher power density that reduces the number of required modules, cooler operation under high loads, and improved reliability.
The design win builds upon the collaboration between onsemi and Sineng Electric in the renewable energy and AI infrastructure markets.
No additional details on availability or pricing were provided in the announcement.
