E-Series AEC-Q101 Silicon Carbide Diodes Wolfspeed E-Series AEC-Q101 Silicon Carbide Diodes are robust SiC semiconductor devices for the electric vehicle (EV) and renewable energy markets. These devices deliver the highest available power density and durability for on-board automotive power conversion systems, off-board charging, solar inverters, and other outdoor applications. These diodes and rectifiers are automotive qualified and PPAP capable. They are ideal for high-humidity and automotive qualifications, enabling delivery of some of the most reliable and corrosion-resistant components.