GBU4G-E3/45

Overview

The GBU4G-E3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes glass-passivated junctions and is housed in the GBU surface-mount package. The device supports a peak repetitive reverse voltage of 400 V and an average forward rectified current of 4 A. Key electrical parameters include a maximum non-repetitive peak forward surge current of 150 A, a typical forward voltage drop of 1.1 V at 4 A, and a maximum reverse leakage current of 5 µA at 400 V. It operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Glass-passivated junctions provide mechanical integrity and enhanced stability against external environmental stresses.
• Surface-mount GBU package design facilitates automated assembly and efficient PCB space utilization.
• High surge current capability ensures robust performance during transient overload conditions.

Applications

• General-purpose AC-to-DC conversion in low to medium power supply circuits
• Battery charging systems requiring reliable rectification
• Industrial control equipment power stages

Procurement Notes

Verify the specific suffix configuration against official Vishay documentation to ensure compliance with RoHS directives and lead-free manufacturing standards. Confirm that the GBU package dimensions match the target footprint requirements before finalizing procurement decisions for production integration.

Selection Notes

Select this component when a 4 A current rating and 400 V blocking voltage are required in a surface-mount format. Ensure thermal management strategies account for the power dissipation associated with the specified forward voltage drop at the intended operating load currents.

Part Context

This part belongs to the GBU4 series of bridge rectifiers from Vishay. The series offers various voltage ratings while maintaining consistent current handling and packaging characteristics. The GBU4G variant specifically denotes the 400 V rating within this standardized product line.

Replacement Considerations

Direct replacements must match the 4 A current rating, 400 V reverse voltage, and GBU package outline. Verify equivalent forward voltage and leakage specifications to maintain circuit performance integrity.