Slavko Mocevic: Rapid technology improvement of silicon-carbide (SiC) MOSFET transistors combined with their extraordinary characteristics are key drivers for their utilization in medium-voltage (MV) applications. For typical MV modular converter applications, power cell is a critical piece. Power cell systematic design and assessment methodology are crucial to prevent destruction and to fully test exploring its capabilities prior to implementation at the converter level. Thereby, this paper presents design and assessment methodology of an MV half-bridge power cell based on XHV-6 10 kV, high current, SiC MOSFET module with dc bus rated voltage of 6 kV. Critical design considerations, challenges and solutions are presented as well as the detailed assessment workflow and limitations of the power cell. The power cell design is validated through continuous operation at 6 kV, 84 A rms, 10 kHz exhibiting over 99% efficiency, switching with dv⁄dt up to 100 V⁄ns.