Toshiba Electronics Europe has introduced a new family of automotive-qualified MOSFETs designed to improve reliability, inspection capability, and space efficiency in next-generation vehicle electronics. The portfolio includes four N-channel devices (XSM6K361NW, XSM6K519NW, XSM6K376NW, XSM6K336NW) and one P-channel device (XSM6J372NW), all housed in the compact DFN2020B(WF) package featuring wettable-flank technology.
A key advantage of the DFN2020B(WF) package is its enhanced solder-joint visibility, which supports automated optical inspection (AOI) during manufacturing. This capability is particularly valuable in automotive production environments where traceability and assembly quality are critical. The wettable-flank structure also improves solderability and increases joint robustness. According to Toshiba, solder-joint shear strength is approximately 23% higher than comparable devices in the SOT-23F package, contributing to improved long-term reliability in demanding automotive conditions.
The compact dimensions of the new package—typically 2.0 × 2.0 × 0.6 mm—enable significant space savings on printed circuit boards. Compared with SOT-23F, mounting area is reduced by about 43% and package height by roughly 25%, supporting further miniaturization of electronic control units (ECUs) and other automotive subsystems where board space is increasingly limited.
Despite their small footprint, the new MOSFETs maintain strong thermal performance. For example, the XSM6K361NW achieves a maximum power dissipation of 1.84 W, approximately 1.5 times higher than equivalent SOT-23F devices. This makes the components well-suited for applications such as DC-DC converters in ECUs and load-switching functions in automotive LED lighting systems.
All devices are qualified to the AEC-Q101 standard and support PPAP documentation aligned with IATF 16949 requirements, ensuring readiness for safety-critical automotive deployments. Looking ahead, Toshiba plans to expand the DFN2020(WF) lineup further, including dual 2-in-1 MOSFET solutions to address evolving vehicle electrification needs and system-level integration trends.
