Toshiba Automotive Small Signal MOSFET Devices are AEC-Q101 qualified compact body semi-power MOSFETs. The devices support a wide range of automotive applications for battery systems from 12V to 48V including power line load switches, LED headlights, and BMS cell balance circuitry. The SOT-23F is a Toshiba proprietary flat-lead featured package as opposed to the existing gull-wing lead type SOT-23 package. This improves thermal dissipation through increased heat sinking contact area between the package and the Print Circuit Board (PCB). As mount quality and reliability under harsh thermal environments is a usual concern for flat-lead type packages, thermal cycling requirements for automotive applications have been met. The devices also maintain footprint compatibility to the predecessor SOT-23 package. By combining sophisticated wafer processing and packaging techniques, the SSM3K341R and SSM3K361R in the SOT-23F package boasts industry-leading RDS(ON) of 36mΩ and 65mΩ (@VGS=4.5V) respectively. The low on-resistance allows a reduction in application size while also reducing energy losses. In addition, both devices support a maximum channel temperature of +175°C and can be used extensively in automotive applications where the operating environment is demanding.
