CoolSiC™ Hybrid IGBTs Infineon Technologies CoolSiC™ Hybrid IGBTs combine a 650V TRENCHSTOP™ 5 fast-switching IGBT (Insulated-Gate Bipolar Transistor) with a CoolSiC™ Schottky Diode. These devices are optimized to enable a cost-efficient performance boost for fast-switching automotive applications.