BYG21MHE3_A/H

Overview

The BYG21MHE3_A/H is a fast avalanche surface mount rectifier from Vishay General Semiconductor - Diodes Division. It features a single silicon junction in a DO-214AC (SMA) package, rated for a maximum repetitive peak reverse voltage of 1000 V and an average forward current of 1.5 A. The device exhibits a maximum non-repetitive peak forward surge current of 30 A and a low reverse recovery time of 0.12 µs. Operating within a junction temperature range of -55 °C to +150 °C, it meets MSL level 1 standards and holds AEC-Q101 qualification.

Feature Summary

• Fast reverse recovery characteristics with soft recovery behavior
• Controlled avalanche capability for robust transient handling
• Glass passivated junction ensuring long-term reliability
• Low profile design optimized for automated placement processes

Applications

• Automotive electronics systems requiring high reliability
• High frequency switching power supplies
• Free wheeling diode applications in motor drives
• General purpose rectification in industrial equipment

Procurement Notes

Verify the specific suffix against official documentation to confirm exact electrical tolerances and packaging variations. Ensure compatibility with RoHS directives and WEEE requirements before integration. Confirm AEC-Q101 qualification status if automotive grade performance is mandatory for the target application environment.

Selection Notes

Select this component for designs requiring high voltage blocking capabilities in a compact surface mount form factor. The fast recovery time makes it suitable for high-frequency circuits where standard rectifiers would introduce excessive losses. Consider the avalanche rating for environments prone to voltage spikes.

Part Context

This part belongs to Vishay's eSMP series of high current density standard avalanche surface mount rectifiers. The series emphasizes low profile construction and glass passivation for enhanced durability. These devices are engineered to meet stringent automotive quality standards while providing efficient rectification in space-constrained PCB layouts.

Replacement Considerations

Check datasheets for equivalent DO-214AC packages with matching 1000V and 1.5A ratings. Verify reverse recovery time and avalanche characteristics align with original circuit requirements.