With its Fred Pt® Gen5 Ultrafast technology, Vishay is setting a new benchmark in terms of efficiency and robustness for charging applications, including on-board chargers and fast DC off-board chargers. It optimizes recovery performance without compromising on conduction losses, with a low and soft reverse recovery current shape without a long tail. This is achieved by fully optimizing the doping profile with lifetime killing and a die size that allows for the best behavior during switching, while low Erec and minimum overshoot guarantee high efficiency and good EMI. After a deep study of the application requirements, Vishay released this diode platform tailored for AC/DC and DC/DC conversion. It’s available in two voltage grades — 600 V and 1200 V — to address electric vehicle (EV) battery requirements. 1200 V diodes are optimized for AC/DC Vienna rectifiers, while 600 V devices are optimized for high frequency resonant SMPS operation (LLC). The optimization of Erec and Irrm / Qrr limit the current stress on the active switch, improving light and full-load efficiency in SMPS operation.
by Avnet Silica