BY527TR

Overview

The BY527 is a standard avalanche sinterglass diode manufactured by Vishay Semiconductors. It features an SOD-57 package with plated axial leads for through-hole mounting. The device provides a reverse voltage rating of 800 V and supports an average forward current of 2 A. Key electrical parameters include a peak forward surge current of 50 A, a breakdown voltage of 1250 V at 100 μA, and a maximum reverse recovery time of 4 μs. It operates within a junction temperature range of -55 °C to +175 °C.

Feature Summary

• Controlled avalanche characteristics for robust performance under transient conditions
• Glass passivated junction providing hermetic sealing against environmental factors
• Low reverse current ensuring minimal leakage in high-voltage applications
• High surge current capability suitable for demanding power circuits

Applications

• General purpose rectification in industrial electronics
• Protection circuits requiring controlled avalanche behavior
• Power supplies handling high reverse voltage environments

Procurement Notes

Verify the specific ordering code (e.g., BY527TR for tape and reel) matches the required packaging format. Confirm compliance definitions via the manufacturer's material categorization documentation. Ensure technical validation is performed for the specific application environment, as parameters may vary based on thermal conditions and load profiles.

Selection Notes

Select this component when a standard rectifier with controlled avalanche properties is required. The SOD-57 package suits through-hole designs needing high surge tolerance. Evaluate thermal resistance requirements against the expected ambient temperature and lead length to ensure operation remains within the specified junction temperature limits.

Part Context

This part belongs to Vishay's standard avalanche sinterglass diode lineup. It is designed for general-purpose applications where reliability under high reverse voltage and surge conditions is critical. The glass passivation ensures long-term stability compared to plastic-encapsulated alternatives.

Replacement Considerations

Consult official substitution lists or equivalent product datasheets from authorized distributors. Verify that any alternative component matches the 800 V reverse voltage, 2 A average forward current, and SOD-57 package dimensions.