Vishay Intertechnology introduced six new FRED Pt® Gen 5 1200V Hyperfast and Ultrafast rectifiers. The devices come in X-type Hyperfast and H-type Ultrafast speed classes. Boasting the best conduction and switching loss trade-off for devices in their class, the 30A and 60A Vishay rectifiers are designed to boost the efficiency of high-frequency converters, and resonant or hard- and soft-switched designs.
Typical applications for the rectifiers include PFC and output rectification stages for EV / HEV battery charging stations, booster stages for solar inverters, UPS, and welding.
Vishay matched the 1200V rectifiers to operate with MOSFETs or high-speed IGBTs.
The company specifically designed the converter to improve the efficiency of PFC and output rectification stages of EV / HEV battery charging stations, booster stage of solar inverters, and UPS applications.
According to Vishay the new rectifiers reduce conduction and switching losses. In fact, the company claims that the rectifiers cut the efficiency gap with SiC diodes in half, and they can operate at up to 175 °C. The rectifiers offer up to 10% lower losses than competing silicon solutions. With the same forward voltage as competing solutions, Vishay says that the rectifiers offer up to 40% lower switching losses.
For applications with frequencies in the range of 50kHz, they provide a cost-effective alternative, Vishay says.
• Forward currents of 30A and 60A
• Offered in TO-247L and TO-220AC packages
• Available in X-type Hyperfast and H-type Ultrafast speed classes
• X-type rectifiers offer the advantage of lower QRR
• H-type devices feature lower forward voltage
• High-temperature operation to +175°C
• Matched to operate with MOSFETs or high-speed IGBTs
• Offer up to 10% lower losses than competing silicon solutions
• Cut the efficiency gap with SiC diodes in half
• Provide a cost-effective alternative for applications with frequencies in the range of 50 kHz
• Offer the same forward voltage as competing solutions, while delivering up to 40% lower switching losses