BY527TAP

Overview

The BY527 is a standard avalanche sinterglass diode manufactured by Vishay General Semiconductor - Diodes Division. It features an SOD-57 case with plated axial leads and offers a reverse voltage of 800 V, with a non-repetitive peak reverse voltage of 1250 V. The device supports a repetitive peak forward current of 12 A and an average forward current of 2 A. Peak forward surge current reaches 50 A for 10 ms pulses. It provides a pulse avalanche peak power of 1000 W at Tj = 175 °C and handles 20 mJ of non-repetitive avalanche energy. Operating temperature ranges from -55 °C to +175 °C.

Feature Summary

• Controlled avalanche characteristics for robust performance under transient conditions
• Glass passivated junction providing hermetic sealing and low reverse leakage current
• High surge current capability suitable for demanding switching applications

Applications

• General purpose rectification circuits
• Inductive load switch-off protection
• High reliability automotive environments

Procurement Notes

Verify the specific ordering code against the required packaging format. The BY527TAP indicates an ammopack containing 5000 units per pack, with a minimum order quantity of 25,000 units. Confirm that the SOD-57 package dimensions and lead specifications align with your assembly requirements before finalizing procurement.

Selection Notes

Select this component when high reverse voltage blocking and controlled avalanche ruggedness are required in an axial leaded package. Consider the thermal resistance values based on lead length or PCB spacing to ensure junction temperatures remain within the specified operating range during continuous and pulsed operations.

Part Context

This part belongs to the standard avalanche sinterglass diode series from Vishay Semiconductors. It utilizes glass passivation technology to enhance reliability and withstand harsh environmental conditions. The SOD-57 package provides a compact form factor suitable for through-hole mounting in various electronic assemblies.

Replacement Considerations

Cross-reference with other Vishay avalanche diodes in the SOD-57 package if electrical parameters such as breakdown voltage and surge current capabilities match the design requirements.