STは、想定するアプリケーションの要件に応じて異なるVF / Qrrのトレードオフを考慮し、最適な性能を実現するファストリカバリ・ダイオードを幅広く提供しています。最小限の電力損失を特徴とし、交流電源の整流、バイパス、昇圧、ブートストラップ、フリーホイール、および高周波整流機能に最適です。このような包括的な機能では、共振型 / マルチレベル型といったトポロジの進化に合わせて、常に最適な設計が生まれています。STのファストリカバリ・ダイオードはSTPOWERファミリの製品です。



STは、ファストリカバリ・ダイオードの研究開発に取り組み続けており、共振コンバータ向け600V RQシリーズをはじめとするさまざまな製品を生み出しています。

New 600V ‘RQ’ diodes improve creepage distance and reduce EMI

Thanks to the high-voltage D²PAK package, our new diode series improves the creepage distance and facilitates compliance with the IEC 60664-1 worldwide standard. ST now offers 600 V ‘RQ’ diodes (Rapid & Quiet) – providing a minimum of 3.48 mm between the anode and cathode instead of only 1.38 mm for a standard D²PAK device. Developed for electric vehicle (EV) charging stations, industrial converters, high-power SMPS, snubber circuits and for free-wheeling, these diodes feature a unique trade-off between a soft reverse recovery to reduce electromagnetic interference (EMI) and a low forward voltage (VF) to gain efficiency in all modes of resonant-based topologies.
These 600 V, 15- to 30-amp diodes are also available in an automotive-grade ‘RQ’ series, suited for on-board battery chargers (OBC) and 2- or 3-wheeler battery chargers.


eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Thermal-electrical Simulators for Components

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AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
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Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices