GBU8M-M3/51

Overview

The GBU8M-M3/51 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes glass passivation for the junctions and is housed in a GBL surface-mount package. The device supports an average forward rectified current of 8 A and withstands a maximum repetitive peak reverse voltage of 1000 V. Key electrical characteristics include a forward voltage of approximately 1.1 V at full load and a non-repetitive peak surge current capability of 200 A. It operates within a temperature range of -55°C to +150°C.

Feature Summary

• Glass passivated junctions provide robust protection against mechanical stress and chemical corrosion.
• Designed for high reliability with low leakage currents under reverse bias conditions.
• Surface-mount GBL package facilitates automated assembly and compact circuit board layouts.

Applications

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

Procurement Notes

Verify the specific suffix /51 against official datasheets to confirm reel packaging specifications, as suffixes often denote tape-and-reel quantities or variant configurations. Ensure the component meets RoHS directives if required by the target application standards. Cross-reference the manufacturer part number directly with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a high-voltage (1000 V) surface-mount bridge rectifier is required for space-constrained designs. The 8 A current rating suits moderate-power applications where through-hole mounting is impractical. Compare the forward voltage drop and thermal resistance against alternative packages like KBU or GBU variants to ensure compatibility with the system's thermal management strategy.

Part Context

This part belongs to Vishay's GBL series of glass-passivated bridge rectifiers. The series is characterized by its compact surface-mount footprint and high surge current handling capabilities. The M3 suffix indicates compliance with current EU RoHS restrictions and absence of hazardous substances, aligning with modern environmental manufacturing standards.

Replacement Considerations

Direct functional substitutes include other 8 A, 1000 V GBL-series bridge rectifiers from Vishay, such as the GBU8M-E3/51. Verify pinout compatibility and thermal performance before substituting with parts from different manufacturers to ensure equivalent electrical characteristics and physical dimensions.