BYG21M-E3/TR3

Overview

The BYG21M-E3/TR3 is a fast avalanche rectifier diode manufactured by Vishay Semiconductors. It features a single configuration housed in the DO-214AC (SMA) surface-mount package. The device supports a maximum average forward current of 1.5 A and a peak repetitive reverse voltage of 1000 V. Key electrical characteristics include a maximum non-repetitive peak forward surge current of 30 A, a maximum forward voltage of 1.5 V, and a maximum reverse current of 1 µA. The component exhibits a maximum reverse recovery time of 120 ns and operates within a junction temperature range up to 150 °C.

Feature Summary

• Fast avalanche technology with controlled avalanche characteristics for robust performance
• Soft recovery characteristic combined with fast reverse recovery time
• Glass passivated junction ensuring low reverse current leakage
• High surge current capability suitable for demanding power applications

Applications

• General purpose rectification in power supplies
• Inverter circuits
• Converter topologies
• Freewheeling diodes for consumer electronics
• Automotive electronic systems
• Telecommunication equipment

Procurement Notes

Verify the specific suffix against official documentation to confirm compliance status and qualification grade. The E3 suffix indicates RoHS compliance for commercial grade applications, while M3 variants typically denote automotive qualification under AEC-Q101 standards. Ensure the ordering part number matches the required reliability level for the intended deployment environment before finalizing procurement.

Selection Notes

Select this component when high-voltage blocking capability and fast switching speeds are required in a compact surface-mount form factor. The 1000 V rating makes it suitable for mains-connected or high-side rectification tasks. Consider the thermal management requirements associated with the SMA package and the 1.5 A continuous current limit during circuit design to ensure reliable operation under load conditions.

Part Context

This component belongs to the BYG series of silicon planar fast recovery rectifiers designed for surface-mount assembly. The series utilizes glass passivation for junction protection and offers various voltage ratings from 200 V to 1600 V. The DO-214AC package provides an ideal profile for automated placement processes, supporting high-volume manufacturing requirements across industrial and consumer sectors.

Replacement Considerations

Cross-reference with other Vishay BYG series parts such as BYG21K-M3/TR3 for lower voltage applications. Verify pinout compatibility and thermal resistance parameters when substituting with components from different manufacturers to ensure equivalent performance in high-voltage rectification circuits.