CoolSiC™ Schottky Diodes Infineon CoolSiC™ Schottky Diodes provide a relatively high on-state resistance and leakage current. In SiC material, Schottky diodes can reach a much higher breakdown voltage. The Infineon portfolio of SiC Schottky products covers 600V and 650V to 1200V Schottky diodes. Combining a fast silicon-based switch with a CoolSiC™ Schottky diode is often termed a “hybrid” solution. In recent years, Infineon has manufactured several millions of hybrid modules and has seen them installed in various customer products in applications like solar and uninterruptible power supplies (UPS).