GBU4D-E3/45

Overview

The GBU4D-E3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a peak repetitive reverse voltage of 400 V and an average forward rectified current of 4 A per leg. The device utilizes glass passivation for electrode isolation and is housed in a GBU surface-mount package with four pins. Key electrical characteristics include a maximum non-repetitive peak forward surge current of 150 A, a typical forward voltage drop of 1 V at rated current, and a low reverse leakage current of 5 µA at 400 V. The component supports a junction temperature range from -55°C to +150°C.

Feature Summary

• Glass passivated cathode electrodes provide high reliability and resistance to mechanical stress.
• Utilizes the GBU surface-mount package design for efficient board space utilization.
• Complies with international standards including IEC 61373 for shock and vibration resistance.

Applications

• AC-DC power supply circuits
• Battery chargers
• General-purpose rectification in industrial equipment

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm compliance with RoHS directives and halogen-free requirements. Confirm that the ordering code matches the exact voltage and current ratings required for the target application circuit. Ensure compatibility with standard surface-mount assembly processes.

Selection Notes

Select this component when a compact surface-mount solution is required for 400 V applications. Compare the thermal dissipation capabilities of the GBU package against the expected load conditions. Verify that the 4 A average current rating meets the continuous operational demands of the system while accounting for ambient temperature derating.

Part Context

This part belongs to the GBU4 series of bridge rectifiers from Vishay. The series offers various voltage ratings within the same physical footprint, allowing for design flexibility. The GBU4D variant specifically addresses 400 V requirements, fitting into the broader portfolio of general-purpose rectifiers designed for robust performance in constrained spaces.

Replacement Considerations

Direct replacements must match the 4 A current, 400 V voltage, and GBU package dimensions. Verify pinout compatibility and thermal characteristics before substitution.