ST's portfolio of automotive diodes is qualified to the AEC-Q101 standard and is intended for DC-DC converters used in numerous automotive functions. Most of these dedicated diodes are guaranteed in operation at junction temperatures as low as -40 °C and as high as +175 °C. The automotive-grade diodes belong to our STPOWER family.
The extension Y is used in the part number to identify the automotive version for a given rectifier.
The new Dual diodes in PSMC package provide ideal solution for high-performance DC/DC converters and auxiliary power supplies. Available in low forward voltage drop Schottky and Ultrafast diodes they offer a fine-tuned portfolio to address space constrained environment.
A special screening matrix is implemented on these automotive-grade products at die and finished product levels, in order to comply with the most stringent international automotive quality requirements.
Browse by types of automotive-grade diodes
Featured Videos
Getting started with Schottky and FERD eTool video
Recommended for you
On-board chargers (OBC) now enjoy improved creepage distance with our new high-voltage D²PAK for bridge rectifier diodes
These new 1200 V bridge rectifier diodes are available in surface-mount, high voltage D²PAK packages in both AEC-Q101-qualified automotive-grade ( STBR3012G2Y-TR) and industrial-grade ( STBR3012G2-TR) versions.
eDesignSuite
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
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 
STPOWER Studio
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