GBU6A-M3/51

Overview

The GBU6A-M3/51 is a general-purpose silicon rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It features a standard axial leaded package configuration designed for through-hole mounting applications. The device is rated for a maximum repetitive peak reverse voltage of 200 V and an average forward rectified current of 6 A at a case temperature of 130°C. Key electrical parameters include a maximum RMS bridge current of 4.8 A, a non-repetitive peak forward surge current capability of 200 A under specified conditions, and a maximum DC reverse leakage current of 5 µA at 200 V. The component operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• High thermal stability with extended operating junction temperature range up to 175°C
• Low forward voltage drop characteristics for improved efficiency
• Robust surge overload capability for reliable circuit protection
• Halogen-free and RoHS compliant construction

Applications

• General purpose rectification in AC-DC power supplies
• Bridge rectifier circuits for low to medium power converters
• Freewheeling diodes in inductive load switching applications
• Polarity protection in DC input circuits

Procurement Notes

Verify the specific suffix /51 against official Vishay documentation to confirm packaging details such as tape-and-reel or bulk quantities. Ensure the ordering part number matches the required lead frame finish and compliance standards. Cross-reference the manufacturer's latest datasheet revision to confirm availability status and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when a 6 A continuous current rating and 200 V blocking voltage are required for through-hole implementations. Consider the thermal resistance characteristics and PCB layout constraints associated with the DO-201AD package. Evaluate the reverse recovery time specifications if high-frequency switching applications are involved, ensuring compatibility with the system's electromagnetic interference requirements.

Part Context

This part belongs to Vishay's GBU series of glass-passivated junction rectifiers. The M3 suffix indicates Halogen-free and RoHS compliance. The /51 suffix typically denotes a specific packaging variant, often related to bulk or tape-and-reel configurations, though exact packaging details require verification from the manufacturer's official ordering guide. This series is widely used in industrial and consumer electronics for power conversion stages.

Replacement Considerations

Direct replacements must match the 6 A current rating, 200 V reverse voltage, and DO-201AD package outline. Verify pinout compatibility and thermal performance characteristics. Alternative parts from other manufacturers should be evaluated for equivalent forward voltage drop and reverse leakage specifications to ensure circuit performance parity.