The ST rectifier diode designs deliver performance for applications with very different VF/Qrr trade-offs depending on targeted functions. The minimal power losses of the ST rectifiers range is totally adapted to mains rectification, bypass, boost, bootstrap, freewheel and HF rectification functions. Inside these generic functions, the topology evolution in e.g. resonance or multilevel is followed constantly by suited designs.

This is backed-up by the ST diodes manufacturing industry aimed at serving our customers of all segments, automotive, industrial, computer, consumer and appliance included in a past, present and future focus.

Our best bipolar ultrafast rectifier diodes maintain heavy R&D progress illustrated here by the ‘RQ’ soft diode series for resonant converters.

Ultrafast diode series positioning

New 600V ‘RQ’ diodes series reduces EMI

ST now offers  600V ‘RQ’ diodes (Rapid & Quiet) – AEC-Q101 qualified – developed for automotive applications such as on-board battery chargers (OBC), 2- or 3-wheeler battery chargers, and electric vehicle (EV) charging stations. These diodes feature a specific V RRM guaranteed from -40 to +175 °C, a unique trade-off between a soft reverse recovery to reduce electromagnetic interference (EMI) and a low forward voltage (V F) to gain efficiency in all modes of resonant-based topologies.
These 600V, 15- to 60-amp diodes are also available as  industrial-grade ‘RQ’ series, suited for industrial converters, high-power SMPS, snubber circuits and for free-wheeling.

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