GBU4M-E3/45

Overview

The GBU4M-E3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a peak repetitive reverse voltage (Vrrm) of 1000 V and an average forward rectified current (Io) of 8 A per leg. The device utilizes a glass-passivated junction for enhanced stability and operates within a junction temperature range of -55°C to +150°C. Packaged in the GBU through-hole format, it exhibits a maximum forward voltage drop of 1 V at rated current and a low reverse leakage current of 5 µA at full reverse voltage.

Feature Summary

• Glass-passivated junction construction ensures high reliability and stable performance under varying thermal conditions.
• High surge current capability allows the component to withstand transient overloads during power-up or fault conditions.
• Low forward voltage drop contributes to reduced power dissipation and improved overall system efficiency.

Applications

• General-purpose AC-to-DC conversion in industrial power supplies
• Battery charging circuits requiring high reverse voltage blocking
• DC power output stages in consumer electronics

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm electrical ratings and package compatibility. Confirm RoHS compliance status and check for any product change notices that may affect pinout or material composition before finalizing procurement specifications.

Selection Notes

Select this component when a 1000 V rating is required for mains-connected applications. Ensure the PCB layout accommodates the GBU footprint and provides adequate thermal relief for the 8 A continuous current rating. Verify that the operating environment stays within the specified -55°C to +150°C junction temperature limits.

Part Context

This part belongs to the GBU4 series of bridge rectifiers from Vishay. The 'M' suffix typically denotes the 1000 V voltage class within this family. It serves as a robust solution for medium-power rectification tasks where high voltage isolation is critical.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult the manufacturer's official cross-reference guide for verified alternatives with matching electrical and mechanical specifications.