BYG24DHM3_A/I

Overview

The BYG24DHM3_A/I is a fast avalanche surface-mount rectifier manufactured by Vishay General Semiconductor. It features a glass-passivated junction and is housed in an SMA (DO-214AC) package. The device supports a maximum repetitive peak reverse voltage of 200 V and an average forward current of 1.5 A at 65 °C. Key electrical parameters include a maximum instantaneous forward voltage of 1.25 V, a maximum reverse current of 1 μA, and a fast reverse recovery time of 140 ns. It withstands a peak forward surge current of 30 A and operates within a junction temperature range of -55 °C to +150 °C.

Feature Summary

• Fast reverse recovery characteristics with soft recovery behavior
• Avalanche rated for energy dissipation in non-repetitive inductive switching applications
• Glass passivated junction construction for enhanced reliability
• Qualified for automotive applications under the AEC-Q101 standard

Applications

• High frequency rectification in switching mode converters
• Freewheeling diode applications in inverters
• Consumer electronics power supplies
• Automotive electronic systems
• Telecommunication equipment

Procurement Notes

Verify that the ordering suffix matches the required qualification level. The HM3 suffix indicates halogen-free, RoHS-compliant material categorized for automotive use via AEC-Q101 qualification. Confirm the specific revision code associated with the suffix to ensure compliance with current manufacturing standards and material categorization requirements.

Selection Notes

Select this component for circuits requiring fast recovery times and avalanche ruggedness in a low-profile surface-mount package. Ensure the operating junction temperature remains within the specified -55 °C to +150 °C range. Validate thermal resistance values against the specific PCB copper area and mounting conditions used in the design to maintain safe operating limits.

Part Context

This part belongs to the BYG24D series of fast avalanche SMD rectifiers from Vishay. The series includes variants with different voltage ratings, such as 400 V and 600 V options. All members share the same SMA (DO-214AC) mechanical footprint and general electrical characteristics, differing primarily in their maximum repetitive peak reverse voltage capabilities.

Replacement Considerations

Direct substitutes within the same family include BYG24GHM3_A/I and BYG24JHM3_A/I. These parts share identical packaging and current ratings but offer higher voltage ratings of 400 V and 600 V respectively. Verify that the increased voltage rating does not conflict with circuit design constraints.