GBU4G-M3/45

Overview

The GBU4G-M3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes glass passivation for the junction and is housed in a GBU (GBL) package designed for through-hole mounting. The device features a peak repetitive reverse voltage of 400 V and an average forward rectified current of 4 A at 25°C. Key electrical parameters include a maximum non-repetitive peak forward surge current of 150 A, a typical forward voltage drop of 1 V, and a maximum reverse leakage current of 5 µA. It operates within a temperature range of -55°C to +150°C.

Feature Summary

• Glass passivation provides stable blocking voltage and low leakage current.

Applications

• General-purpose full-wave rectification in AC-DC power supplies.

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm compliance status and packaging configuration. Ensure the ordering code matches the required RoHS directive standards. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a 400 V rating and 4 A continuous current capacity are required for through-hole applications. Consider the GBU package dimensions for PCB layout constraints. Evaluate thermal management requirements based on the specified operating temperature range and forward voltage characteristics under expected load conditions.

Part Context

This component belongs to the GBU series of single-phase bridge rectifiers from Vishay. The series offers various voltage ratings and current capacities within the same mechanical footprint. The M3 suffix typically indicates lead-free termination and RoHS compliance, distinguishing it from older tin-lead variants within the same electrical specification family.

Replacement Considerations

Direct replacements must match the 400 V reverse voltage, 4 A forward current, and GBU package outline. Verify that alternative manufacturers provide equivalent glass-passivated junctions and similar thermal resistance values to ensure compatibility in existing designs without re-validation.