BYT77-TR

Overview

The BYT77-TR is a fast avalanche sinterglass diode manufactured by Vishay General Semiconductor - Diodes Division. It features an 800 V reverse voltage rating and supports a continuous forward current of 3 A. The device exhibits a maximum reverse leakage current of 5 µA at the rated voltage and a reverse recovery time of 250 ns. Designed for through-hole mounting, it utilizes the SOD-64 (DO-201AA) axial package. The component is characterized by hermetically sealed construction and glass passivated junctions to ensure reliability under high-stress conditions.

Feature Summary

• Fast avalanche capability with soft recovery characteristics
• Hermetically sealed glass passivated junction
• Low reverse leakage current performance

Applications

• High voltage rectification circuits
• General purpose switching applications
• Industrial power supply protection

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm exact packaging configuration and revision status. Ensure the procurement channel provides traceable manufacturing data consistent with the original component specifications. Cross-reference the part number with authorized distributor catalogs to validate authenticity and technical compliance before finalizing acquisition.

Selection Notes

Select this component for designs requiring robust high-voltage handling with controlled avalanche energy dissipation. The 3 A current capacity suits moderate power applications where fast switching speeds are necessary. Consider the through-hole SOD-64 package for mechanical stability in environments subject to vibration or thermal cycling.

Part Context

This device belongs to the BYT77/BYT78 series of fast avalanche sinterglass diodes. These components are engineered for durability in demanding electrical environments. The series emphasizes low reverse current and reliable operation across standard industrial temperature ranges, distinguishing them from standard general-purpose rectifiers.

Replacement Considerations

Consult official Vishay substitution guides for verified equivalents. Generic replacements may not replicate the specific avalanche characteristics or hermetic sealing properties required for critical circuit integrity.