ROHM Launches 600V Super Junction MOSFETs in Surface-Mount Package
In the data centre and industrial equipment fields, power demand continues to increase as processing loads grow, driving strong demand for higher power supply efficiency to reduce both power consumption and heat generation. At the same time, as applications become smaller, power supply circuits must achieve higher power density and space savings while delivering higher output within limited space.
To meet these requirements, Super Junction MOSFETs must deliver even lower loss and improved thermal performance, driving the rising adoption of surface-mount packages with excellent heat dissipation. In addition, from the perspective of reducing procurement risk, support for multi-sourcing and securing second sources have become essential in recent years, making high compatibility with existing standard products an important requirement.
The new products – R60xxXNx series and PrestoMOS™ R60xxWNx series – add surface-mount DFN8080-5L (8.0 × 8.0 × 0.85mm) and TOLL (11.68 × 9.9 × 2.3mm) packages to the existing package lineup. With compact, low-profile designs and excellent heat dissipation, these packages are ideal for applications that require space savings and higher power density, including power supplies for AI servers and industrial equipment.
In terms of characteristics, the gate threshold voltage (VGS(th)) required to turn on the MOSFET is set to a 3V to 5V range widely used in standard products, supporting a broad range of drive conditions. In addition, improved admittance characteristics deliver greater versatility and lower loss, compared with conventional R60xxYNx series and PrestoMOS™ R60xxVNx series. Surface-mount packages having market common footprint ensure excellent versatility while making it easier to consider replacement in existing power supply circuits and select second sources.
The lineup consists of 21 models in the high-speed switching R60xxXNx series and 11 models in the PrestoMOS™ R60xxWNx series that offers class-leading* high-speed recovery characteristics. Users can select the optimal product according to their application needs, from products suited for designs prioritising compatibility to those suited for designs emphasising lower loss.
Mass production began sequentially in June 2026. Online sales have also started with TOLL package products (Applicable Part No: R6020XNJ2, R6038XNJ2, R6049XNJ2, R6055XNJ2, R6024WNJ2, R6035WNJ2), which are available through online distributors such as DigiKey.
