Vishay releases new Hyperfast rectifiers
Vishay has expanded its Gen 7 platform of 1200 V FRED Pt Hyperfast rectifiers with four new devices in the eSMP series SlimSMA HV (DO-221AC) package.
Optimised for industrial and automotive applications, the 1 A and 2 A rectifiers not only offer what is claimed to be 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 rectifiers include the VS-E7JX0112-M3 and VS-E7JX0212-M3, and AEC-Q101 qualified VS-E7JX0112HM3 and VS-E7JX0212HM3. To reduce switching losses and increase efficiency, the devices combine fast recovery times down to 45 ns with Qrr down to 105 nC typical, forward voltage drop down to 1.45 V, and junction capacitance down to 2.5 pF.
The rectifiers offer non-repetitive peak surge current up to 21 A in a package measuring 2.6 mm by 5.2 mm with a low 0.95 mm profile, compared to 2.3 mm for the competing SMA package with a similar footprint.
Combined with a minimum 3.2 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.
The VS-E7JX0112-M3, VS-E7JX0112HM3, VS-E7JX0212-M3, and VS-E7JX0212HM3 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.
