BYM13-40HE3_A/I

Overview

The BYM13-40HE3_A/I is a silicon Schottky barrier rectifier manufactured by Vishay General Semiconductor. It features a single diode configuration in a DO-213AB (MELF) surface-mount package. The device supports an average forward current of 1 A and a repetitive peak reverse voltage of 40 V. Key electrical parameters include a maximum forward voltage drop of 500 mV at 1 A, a reverse leakage current of 500 µA at 40 V, and a non-repetitive peak forward surge current capability of 30 A. It operates within a junction temperature range of -55°C to +125°C and holds AEC-Q100 qualification for automotive reliability.

Feature Summary

• Guardring structure provides enhanced overvoltage protection capabilities
• Low forward voltage drop design minimizes power losses and improves system efficiency
• High surge current capability ensures robustness against transient load conditions

Applications

• Automotive electronics systems requiring AEC-Q100 qualified components
• Free-wheeling rectification in low-voltage DC circuits
• Power supply output rectification for high-efficiency conversion

Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm exact manufacturing lot attributes and compliance status. Confirm availability as distribution channels may list obsolete or discontinued variants under similar part numbers. Ensure the procurement source provides valid RoHS and REACH compliance declarations consistent with the HE3 series specifications.

Selection Notes

Select this component for applications requiring a compact MELF footprint with high thermal stability. The AEC-Q100 qualification makes it suitable for automotive environments where vibration resistance and wide temperature operation are critical. Compare the 40 V rating against circuit peak voltages to ensure adequate margin, considering the 500 mV forward drop impacts overall efficiency in low-voltage designs.

Part Context

This part belongs to the BYM13/SGL41 series of surface-mount Schottky barrier rectifiers. The series is characterized by glass-passivated junctions and plastic encapsulation in the DO-213AB form factor. It serves as a modern replacement for through-hole rectifiers in automated assembly lines, offering improved mechanical stability and placement accuracy compared to older axial leaded equivalents.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific variant were not identified in the provided reference data. Verify compatibility with direct replacements such as SGL41-40-E3/96 only if datasheet electrical characteristics and pin configurations match exactly.