08 Aug 2018

Ultrafast rectifiers increase power density

The new Vishay FRED Pt rectifiers, now available from Rutronik UK, significantly increase power density, performance efficiency and device reliability. The rectifiers come in a thermally efficient FlatPAK 5x6 package with low profile of < 1 mm and are available in commercial/industrial and automotive grade versions with either 2x3A or 2x4A forward current for each type.

By delivering high power density and efficiency, they are ideally suited for automotive and telecom applications. The long term reliability of the rectifiers is assured through 2000 hours of high temperatures reverse bias (HTRB) testing.



Configured as dual-die rectifiers with separate cathode connections, they allow designers to simplify PCB Layouts by utilising one package instead of two smaller ones. By using a standard footprint of 5x6 QFN (quad flat no lead) package, a range of different circuit topologies are possible.



A low forward voltage drop down to 0.7V reduces power losses and improves the efficiency. Furthermore, the FRED Pt Rectifiers offer 200V reverse voltage, ultrafast recovery times down to 25ns, a low reverse recovery charge and soft recovery features. The operating temperature range is between -55 °C and +175 °C.



The rectifiers are RoHS-compliant, halogen-free and have a MSL moisture sensitivity level of 1, the LF maximum peak is at +260 °C.

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The electronics industry has a major role to play in helping to save energy, by enabling better equipment and new ways of working and living that that are more efficient and environmentally friendly. Maintaining the pace of technological progress is key, but improvements become both smaller and harder to achieve as each technology matures. We can see this trend in the development of power semiconductors, as device designers seek more complex and expensive ways to reduce switching energy and RDS(ON) against silicon’s natural limitations.









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