Vishay expands Gen 7 1200V FRED Pt Hyperfast rectifiers platform

Optimised for industrial and automotive applications, the 1A and 2A rectifiers not only offer the best trade-off between reverse recovery charge (Qrr) and forward voltage drop for devices in their class but also provide the lowest junction capacitance and recovery time.

The Vishay Semiconductors rectifiers released include the VS-E7FX0112-M3 and VS-E7FX0212-M3, and AEC-Q101 qualified VS-E7FX0112HM3 and VS-E7FX0212HM3. To reduce switching losses and increase efficiency, the devices combine fast recovery times down to 45ns with Qrr down to 105nC typical, forward voltage drop down to 1.45V, and junction capacitance down to 3.0pF. The robust rectifiers offer non-repetitive peak surge current up to 21 A in a compact package measuring 4.2mm by 1.4mm, with a low 1.08 mm profile and minimum 2.2mm creepage distance.

The devices will serve as clamp, snubber, and freewheeling diodes in flyback auxiliary power supplies and high-frequency rectifiers for bootstrap driver functionality while providing desaturation protection for the latest fast switching IGBTs and high voltage Si / SiC MOSFETs. Typical applications for the VS-E7FX0112-M3, VS-E7FX0112HM3, VS-E7FX0212-M3, and VS-E7FX0212HM3 include industrial drives and tools, on-board chargers and motors for electric vehicles (EV), energy generation and storage systems, and Ćuk converters and industrial LED SEPIC circuitry.

The rectifiers feature a planar structure and platinum-doped lifetime control that guarantee system reliability and robustness without compromising on performance, while their optimised stored charge and low recovery current minimise switching losses and reduce power dissipation. RoHS-compliant and halogen-free, the devices feature a Moisture Sensitivity Level of 1 in accordance with J-STD-020 and offer high-temperature operation to +17°C.