GBU4B-M3/45

Overview

The GBU4B-M3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes glass passivated junction technology and is housed in the GBU surface-mount package. The device supports a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current of 4 A per lead. It features a typical forward voltage drop of 1.1 V at 4 A and a maximum non-repetitive surge current of 80 A. The component operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Glass passivated junction construction provides mechanical integrity and enhanced resistance to environmental stress.

Applications

• AC-DC power supply circuits
• Bridge full-wave rectification
• General-purpose rectification in consumer electronics

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and compliance status. Ensure that the requested part number matches the exact electrical ratings required for the target application circuit design.

Selection Notes

Select this component when a 4 A current rating and 400 V blocking voltage are required in a compact surface-mount footprint. Confirm that the thermal management strategy accommodates the specified junction temperature limits under expected load conditions.

Part Context

This part belongs to the GBU series of single-phase bridge rectifiers from Vishay. The series offers various voltage ratings and current capacities within the same standardized GBU package, facilitating consistent board layout designs across different power requirements.

Replacement Considerations

Cross-reference with other Vishay GBU series parts or equivalent industry-standard bridge rectifiers sharing identical 4 A and 400 V specifications. Verify pinout compatibility and thermal characteristics before substitution.