Automotive

Ultrafast recovery rectifiers increase power density

8th July 2015
Nat Bowers
0
Datasheets

Vishay Intertechnology has introduced four 1 and 2A FRED Pt Ultrafast recovery rectifiers in the compact low-profile SMF (DO-219AB) eSMP series package. Combining extremely fast and soft recovery characteristics with low leakage current and low forward voltage drop, the AEC-Q101-qualified devices reduce switching losses and power dissipation in automotive and telecomms applications.

The Vishay VS-1EFH01HM3, VS-1EFH01-M3, VS-2EFH01HM3 and VS-2EFH01-M3 offer reverse voltages of 100V. The VS-1EFH02-M3 and VS-2EFH02-M3 provide reverse voltages of 200V, joining the previously released VS-1EFH02HM3 and VS-2EFH02HM3. The FRED Pt rectifiers feature reverse recovery times of 16ns and typical forward voltage drop of 0.74V at 1A and 0.75V at 2A. With compact footprints and low profiles of less than 1mm, the SMF saves significant PCB space compared with standard SMA, SMB and SMC packages while increasing power density to lower overall costs.

The FRED Pt rectifiers are optimised for DC/DC converters in automotive ECU, ABS and LED lighting, in addition to telecomms DC/DC bricks. The devices feature a planar structure and platinum doped lifetime control to guarantee high overall performance, ruggedness and reliability characteristics in these applications. The components offer an operating junction temperature to +175°C for a more robust design.

The devices provide an MSL moisture level of 1 per J-STD-020, LF maximum peak of +260°C, meet the JESD 201 class 2 whisker test and are RoHS-compliant and halogen-free. The rectifiers are ideal for automated placement and allow for AOI in automotive systems.

Samples and production quantities of the new FRED Pt rectifiers are available now, with lead times of eight weeks for larger orders.

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