Vishay extends 1200V FRED Pt Hyperfast rectifier family
Vishay has expanded its Gen 7 platform of 1200V FRED Pt Hyperfast rectifiers with six new devices in the eSMP series SMPC HV package.
Optimised for industrial, automotive, and energy applications, the 1A, 2A, and 3 rectifiers are said to offer the best trade-off between reverse recovery charge (Qrr) and forward voltage drop for devices in their class, while also providing the lowest junction capacitance and recovery time.
The rectifiers include the VS-E7SX0112-M3V, VS-E7SX0212-M3V, and VS-E7SX0312-M3V, and AEC-Q101 qualified VS-E7SX0112HM3V, VS-E7SX0212HM3V, and VS-E7SX0312HM3V. To reduce switching losses and increase efficiency, the devices combine a fast recovery time of 50 ns with Qrr down to 105 nC typical, forward voltage drop down to 1.45 V, and junction capacitance down to 7.25 pF.
The devices offer non-repetitive peak surge current up to 70 A in a compact package measuring 4.3 mm x 6.5 mm with a low 1.1 mm profile, which is footprint-compatible with the TO-277A. Combined with a minimum 5.4 mm creepage distance and molding compound with a comparative tracking index (CTI) ≥ 600 (Material Group I), the devices reduce component counts and lower BOM costs based on IEC 60664-1 requirements for high voltage applications.
They 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 devices 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 +175 °C.
