GBU6B-M3/51

Overview

The GBU6B-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 an isolated KBU plastic case. The device supports an average forward rectified current of 6 A and offers a maximum repetitive peak reverse voltage of 100 V. Key electrical characteristics include a maximum non-repetitive peak forward surge current of 200 A, a typical forward voltage of 1.0 V, and a maximum reverse leakage current of 5 µA at rated voltage. The component operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Glass passivated junctions provide high reliability and stability under various operating conditions.
• Isolated KBU plastic case design ensures high dielectric strength between terminals and the mounting surface.
• High surge current capability allows the device to withstand transient overloads during operation.

Applications

• Printed circuit board mounted AC-to-DC power supply circuits
• General purpose full-wave rectification in low to medium power adapters
• Battery charging systems requiring robust surge handling

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm package dimensions and terminal plating specifications. Ensure that the ordering code matches the required lead-free and RoHS compliance status. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current production status and availability before finalizing procurement plans.

Selection Notes

Select this component when a 6 A current rating and 100 V blocking voltage are required in a compact KBU footprint. Consider the thermal management requirements associated with the 1.0 V forward voltage drop at full load. Verify that the application environment stays within the specified -55°C to +150°C junction temperature limits for optimal performance and longevity.

Part Context

This part belongs to the Vishay GBU series of single-phase bridge rectifiers, which are designed for general-purpose applications. The series is characterized by its glass passivation technology and robust mechanical construction. The GBU6B variant specifically targets applications needing 6 A continuous current with a 100 V reverse voltage rating, fitting into the broader family of KBU-case rectifiers.

Replacement Considerations

Compatible substitutes include other 6 A, 100 V bridge rectifiers in the KBU package from manufacturers such as Littelfuse or Diodes Inc., provided they meet the same electrical ratings and pinout configuration. Verify thermal resistance and forward voltage characteristics to ensure equivalent performance in the target circuit.