At the same time, as applications become smaller, power supply circuits must achieve higher power density and greater space savings, while providing higher power output in a limited space.

To meet these requirements, superjunction MOSFETs must offer even lower losses and improved thermal performance, driving the increasingly widespread adoption of surface-mount packages with excellent heat dissipation. Furthermore, from a procurement risk mitigation perspective, multi-source sourcing strategies and alternative suppliers have become essential in recent years, making high compatibility with existing standard products a critical requirement.

The new products—the R60xxXNx and PrestoMOS™ R60xxWNx series—expand the existing package range with the DFN8080-5L (8.0 × 8.0 × 0.85 mm) and TOLL (11.68 × 9.9 × 2.3 mm) surface-mount packages. With their compact, low-profile design and excellent heat dissipation, these packages are ideal for applications requiring space savings and higher power density, such as power supplies for AI servers and industrial equipment.

Rohm MOSFET product range

Regarding its characteristics, the gate threshold voltage (VGS(th)) required to turn on the MOSFET has been set within a range of 3 V to 5 V, a common range in standard products, allowing it to adapt to a wide variety of operating conditions. Furthermore, the improved admittance characteristics offer greater versatility and lower losses compared to conventional models in the R60xxYNx and PrestoMOS™ R60xxVNx. The surface-mount packages with a standard footprint ensure excellent versatility while also facilitating replacement in existing power supply circuits and the selection of alternative power sources.

The range comprises 21 models in the high-speed switching R60xxXNx series and 11 models in the PrestoMOS™ R60xxWNx series, which offers class-leading high-speed recovery characteristics*. Users can select the optimal product based on their application needs, from products suitable for designs that prioritize compatibility to those suitable for designs that prioritize lower losses.

Mass production began in stages in June 2026. Online sales have also begun with products in the TOLL package (applicable part numbers: R6020XNJ2, R6038XNJ2, R6049XNJ2, R6055XNJ2, R6024WNJ2, R6035WNJ2), which can be purchased through online distributors such as DigiKey.