Two devices debut Gen 7 1200V Fred Pt Hyperfast rectifiers
Two devices have been added to the Fred Pt Hyperfast rectifier series by Vishay Intertechnology, the first in Vishay’s Gen 7 of 1,200V series.
They are offered in the SMA (DO-214AC) package. The 1.0A rectifiers are claimed to offer the best trade-off between reverse recovery charge (Qrr) and forward voltage drop for devices in their class.
The Vishay Semiconductors VS-E7MH0112-M3 and AEC-Q101 qualified VS-E7MH0112HM3 are optimised for industrial and automotive applications. They are designed to increase the efficiency of auxiliary functions and low power stages for AC/DC and DC/DC converters.
The rectifiers combine a fast recovery time of 75 nanoseconds with a Qrr down to 150nC typical. Compared to the closest competing device on the market, the 1.10V typical forward voltage drop is 10 per cent lower, while they achieve 50 per cent lower parasitic capacitance without compromising device reliability.
They also deliver a 10 per cent improvement in reverse recovery energy (Erec) compared to previous-generation solutions, said Vishay, and offer a softer recovery tail for improved EMI reduction.
The devices will serve as clamp, snubber, and freewheeling diodes in flyback auxiliary power supplies and high frequency rectifiers for bootstrap driver functionality. They also provide desaturation protection for the latest fast switching IGBTs and Si / SiC MOSFETs.
Typical applications for the VS-E7MH0112-M3 and Automotive Grade VS-E7MH0112HM3 include industrial and telecomms equipment, on-board chargers and motors for electric vehicles (EV), and Ćuk converters and industrial LED PFC CrM SEPIC circuitry.
The VS-E7MH0112-M3 and VS-E7MH0112HM3 feature a planar structure and platinum doped lifetime control for system reliability and robustness, said Vishay. In addition, the optimised stored charge and low recovery current minimise switching losses and reduce power dissipation.
RoHS-compliant and halogen-free, the devices feature an MSL (moisture sensitivity level) of 1 in accordance with J-STD-020 and offer high temperature operation to +175 degrees C.
Samples and production quantities of the Gen 7 devices are available now, with a lead time of 20 weeks.
Vishay claims to manufacture one of the world’s largest portfolios of discrete semiconductors and passive electronic components to support designers innovate in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets.
