GBU8B-E3/45

Overview

The GBU8B-E3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an average forward rectified current of 8 A and a maximum repetitive peak reverse voltage of 100 V. The device utilizes glass passivation for junction protection and is housed in a GBU through-hole package with four pins. Key electrical parameters include a maximum forward voltage of 1 V at 8 A, a non-repetitive peak forward surge current of 200 A, and a maximum reverse leakage current of 5 µA at 100 V. The operating junction temperature range spans from -55°C to +150°C.

Feature Summary

• Glass passivated junctions provide mechanical stress resistance and enhanced reliability under varying thermal conditions.
• High surge current capability supports robust performance during transient overload events in power supply circuits.
• Through-hole mounting facilitates integration into standard printed circuit board layouts requiring high current handling.

Applications

• General purpose AC to DC conversion in low to medium power adapters
• Battery charging circuits requiring reliable rectification
• Power supplies for industrial control systems

Procurement Notes

Verify the specific suffix E3/45 against official Vishay documentation to confirm RoHS compliance and lead-free status. Confirm that the GBU package dimensions match the target PCB footprint. Check for any product change notifications or end-of-life notices prior to final design approval.

Selection Notes

Select this component when a 100 V rating is required for 8 A applications. Ensure the thermal management strategy accommodates the 150°C maximum junction temperature. Compare forward voltage drop characteristics against alternative bridge rectifiers to optimize efficiency in the specific circuit topology.

Part Context

This part belongs to the GBU8 series of bridge rectifiers from Vishay. The series offers various voltage ratings while maintaining consistent current and packaging specifications. The GBU8B variant specifically targets 100 V applications within this lineup.

Replacement Considerations

Vishay GBU8B-M3/45 is listed as a similar replacement option. Verify pinout compatibility and electrical parameter equivalence before substitution.