onsemi’s latest IGBT technology is its Field Stop 7 (FS7) technology with improved performance over previous generations. The technology is optimized into two different variations. The first variation is known as the R-series, or medium-speed devices. These devices are optimized for low collector to emitter voltage when the device is in saturation. This results in lower conduction losses in applications with lower switching frequencies like motor control. The second variation is the S-series, or the high-speed devices. These are optimized for the lowest switching losses for use in high-power conversion like commercial solar inverters, uninterruptable power supplies, and energy storage systems. Both variations contain an antiparallel diode optimized for low forward voltage and softness.