Diodes and Rectifiers

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Engineers looking to improve the efficiency of their mid-range SMPS designs benefit from ST's extensive experience in the semiconductor manufacturing industry and as a leading technology innovator. 

ST's Schottky and Ultrafast diode portfolio includes 650 to 1200 V SiC and 45 to 100 V field-effect rectifier diodes (FERD) ensuring that designers can take advantage of the very latest technologies to develop cost-efficient, high-efficiency converter/inverter solutions. Depending on the targeted application and its voltage, developers can choose from a wide range of devices to ensure the best compromise in terms of forward voltage drop (VF) and leakage current (IR) as well as other characteristics. The Diodes and Rectifiers belong to our STPOWER family.

ST also offers a wide range of automotive-grade diodes qualified to the AEC-Q101 standard and intended for DC-DC converters used in numerous automotive functions.


Tools allow designers to quickly evaluate the field-effect rectifier or Schottky diode that best fits their application using our waveform-driven online Schottky & FERD eTool simulator. Computer-aided decision-making functions and a powerful search engine enable SMPS designers and component engineers to rapidly make a clear decision about which field-effect rectifier or Schottky diode is best suited for their application. Available in both English and Chinese, an intuitive online help helps you get started and includes concrete examples and snapshots. 

In addition, to help developers quickly identify the best product for their application, our ST Diode Finder mobile app for smartphones and tablets includes a detailed parametric search engine, a fast view of the most important electrical parameters of any diode, and more.

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With our Power Discretes & Modules e-news

New ultrafast and power Schottky diodes deliver high power in 1.1 mm high, extra-slim package

Housed in an extra-slim PSMC package (TO-277A) able to withstand very high operating junction temperatures, this new ultrafast and Schottky diode series minimizes the PCB footprint while bringing the best of thermal efficiency.
In addition to having a low forward voltage drop and avalanche capability, these ultrafast and Schottky barrier rectifiers, which are rated from 30 to 200 V with a current rating from 5 to 12 A, help ensure greater compactness of equipment, with increased power density and efficiency, in a large range of applications including car modules, industrial equipment, telecom power systems and personal electronics.


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

Choose design tool:

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
Search and sort suitable devices

ST Power Studio

Supports static and dynamic mission profiles
Provides power losses 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