ROHM has released a 100 V power MOSFET - RY7P250BM - optimized for hot-swap circuits in 48 V power systems used in AI servers and industrial power supplies requiring battery protection to the market. As AI technology rapidly advances, data centers are facing unprecedented processing demands and server power consumption continues to increase annually. In particular, the growing use of generative AI and high-performance GPUs has created a need to simultaneously improve power efficiency while supporting higher currents. To address these challenges, the industry is shifting from 12 V systems to more efficient 48 V power architectures. Furthermore, in hot-swap circuits used to safely replace modules while servers remain powered on, MOSFETs are required that offer both wide SOA (Safe Operating Area) and low ON-resistance to protect against inrush current and overloads.

The RY7P250BM delivers these critical characteristics in a compact 8080-size package, helping to reduce power loss and cooling requirements in data centers while improving overall server reliability and energy efficiency. As the demand for 8080-size MOSFETs grows, this new product provides a drop-in replacement for existing designs. Notably, the RY7P250BM achieves wide SOA (V_DS=48 V, Pw=1 ms/10 ms), ideal for hot-swap operation. Power loss and heat generation are also minimized with an industry-leading low ON-resistance of 1.86 mΩ (V_GS=10 V, I_D=50 A, T_j=25°C), approximately 18% lower than the typical 2.28 mΩ of existing wide SOA 100 V MOSFETs in the same size.

Wide SOA tolerance is essential in hot-swap circuits, especially those in AI servers that experience large inrush currents. The RY7P250BM meets this demand, achieving 16 A at 10 ms and 50 A at 1 ms, enabling support for high-load conditions that conventional MOSFETs struggle to handle. ROHM’s new product has also been certified as a recommended component by a leading global cloud platform provider, where it is expected to gain widespread adoption in next-generation AI servers. Especially in server applications where reliability and energy efficiency are mission-critical, the combination of wide SOA and low R_DS(on) has been highly evaluated for cloud infrastructure.

Key applications of the RY7P250BM

• 48 V AI server systems and power supply hot-swap circuits in data centers
• 48 V industrial equipment power systems (i.e., forklifts, power tools, robots, fan motors)
• Battery-powered industrial equipment such as AGVs (Automated Guided Vehicles)
• UPS and emergency power systems (battery backup units)

Click here to learn more about RY7P250BMTBC.