Rectifiers save space, improve thermal performance

6th November 2017
Mick Elliott

There are 13 200V and 600V FRED Pt Ultrafast recovery rectifiers in the eSMP series SlimDPAK (TO-252AE) package launched by Vishay Intertechnology. Each are available in Automotive Grade and commercial / industrial versions. Offering lower profiles and better thermal performance than devices in the DPAK (TO-252AA), the Vishay Semiconductors rectifiers deliver high power density and efficiency for automotive and telecom applications.

The devices combine a low 1.3mm profile with high forward current ratings to 10A for 200V rectifiers and 15A for 600V rectifiers. #Footprint-compatible with the DPAK package, the devices' profile is 43 % lower to enable slimmer end products, while their heatsink area is 14 % larger for lower thermal resistance.

In addition, 15A rectifiers provide an alternative to devices in the D2PAK (TO-263AB) package.

The rectifiers' FRED Pt technology enables ultrafast recovery times down to 14ns, low reverse recovery charge, and soft recovery features over the entire working temperature range of -55°C to +175°C. The devices' low forward voltage drop down to 0.71V at 4A reduces power losses and improves efficiency.

Typical applications for the AEC-Q101 qualified Automotive Grade rectifiers include DC/DC converters in automotive engine control units (ECU), anti-lock braking systems (ABS), and HID and LED lighting while commercial / industrial devices are optimized for telecom power supplies.

The new rectifiers feature an MSL moisture sensitivity level of 1, per J-STD-020, LF maximum peak of +260°C. RoHS-compliant and halogen-free, the devices are ideal for automated placement and allow for automated optical inspection (AOI) in automotive systems.

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