ROHM has introduced a new 100V power MOSFET called RY7P250BM that’s optimized for hot-swap circuits in 48V power systems that we see in AI servers and industrial power supplies. The product is tailored for AI servers and data centers, where rising power demands from generative AI and high-performance GPUs push systems to adopt more efficient 48V architecture. Hot-swap circuits are circuits where modules can be added or removed while servers are active and running. MOSFETs in these systems must be able to withstand inrush currents and avoid damage while a module is being changed.
Among its main features are a Wide SOA (Safe Operating Area), allowing it to handle surges and low ON-resistance (RDS(on)) of 1.86 milliohms, which reduces power loss and heat. It comes in a compact DFN8080-8S package (8.0 x 8.0 x 1.0 mm). Performance-wise, the RY7P250BM delivers an 18% lower ON-resistance when compared to conventional 100V MOSFETs in the same size. It has a tolerance of 16A for 10ms and 50A for 1ms at 48V, and this is a significant improvement over many competing products in the market.
The MOSFET has been certified as a recommended component by a major cloud platform provider; this is an indication of real-world validation in high-end server applications. Beyond AI servers, it’s suitable for industrial 48V systems like forklifts, power tools, robots, AGVs, UPS, and other backup systems. The RY7P250BM is priced at $5.50 per unit (excluding tax) for sample quantities. It’s currently offered through online distributors including DigiKey, Mouser, and Farnell.
