GBU4GL-6420M3/51

Overview

The GBU4GL-6420M3/51 is a single-phase bridge rectifier from Vishay General Semiconductor's FRED Pt® series, designed for high-efficiency power conversion. It features a 400V maximum repetitive peak reverse voltage and a 3A average forward rectified current rating. The device utilizes advanced Fast Recovery Epitaxial Diode technology to achieve low forward voltage drop and stable switching characteristics. Housed in a GBU package, it supports through-hole mounting with robust thermal performance suitable for industrial applications.

Feature Summary

• Utilizes FRED Pt® technology for optimized fast recovery and low reverse recovery charge
• Engineered for stable switching characteristics and reduced electromagnetic interference
• Features excellent thermal behavior with efficient heat dissipation capabilities
• Provides low forward voltage drop to enhance overall system efficiency

Applications

• Industrial power supply units requiring reliable AC-to-DC conversion
• Inverter circuits in motor drives and automation systems
• General-purpose rectification in medium-power electronic equipment
• Battery charging systems with high thermal stability requirements

Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm exact electrical tolerances and packaging specifications. Ensure that the procurement source provides valid RoHS compliance certificates as required by regulatory standards. Cross-reference the manufacturer part number with authorized distributor catalogs to prevent counterfeit components. Confirm that the received devices match the specified GBU package dimensions and pinout configuration before integration into production lines.

Selection Notes

Select this component when application demands include moderate current handling up to 3A with a 400V blocking capability. The FRED Pt® technology makes it suitable for high-frequency switching environments where minimizing reverse recovery losses is critical. Consider the GBU package for its mechanical robustness and thermal management advantages over smaller surface-mount alternatives in high-power density designs.

Part Context

This bridge rectifier belongs to Vishay's FRED Pt® product line, which specializes in fast recovery epitaxial diodes for high-performance power electronics. The GBU series offers a standardized footprint for easy PCB layout and assembly. As part of the broader Diodes Division portfolio, it adheres to strict quality control measures ensuring consistent reliability across diverse industrial and commercial power conversion applications.

Replacement Considerations

Direct substitutes may include other Vishay GBU-series bridge rectifiers with matching 400V and 3A ratings, such as GBU4J or GBU8J variants, provided their electrical parameters align with the circuit requirements. Always verify thermal resistance and forward voltage characteristics against the original datasheet to ensure equivalent performance without redesigning the cooling infrastructure.