GBU6K-E3/51

Overview

The GBU6K-E3/51 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an average forward current of 6.0 A and a maximum repetitive peak reverse voltage of 400 V. The device utilizes a GBU surface-mount package with solder pad termination. Key electrical parameters include a maximum non-repetitive peak forward surge current of 280 A, a maximum RMS diode current of 4.2 A, and a maximum DC blocking voltage of 400 V. The component operates within a junction temperature range of -55 °C to +150 °C.

Feature Summary

• Surface-mount construction in a GBU plastic package for automated assembly
• High surge current capability for robust circuit protection
• Low forward voltage drop characteristics for improved efficiency

Applications

• General-purpose rectification in AC-DC power supplies
• Battery charging circuits
• Inverter and converter topologies

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm pinout orientation and marking codes. Confirm RoHS compliance status through the manufacturer's current product change notices. Ensure the ordering part number matches the required voltage rating variant within the GBU6 series family.

Selection Notes

Select this component when a 6 A continuous current rating and 400 V reverse voltage are required in a surface-mount form factor. Compare thermal resistance values against the PCB copper area available for heat dissipation. Verify that the GBU package dimensions fit the designated footprint on the target printed circuit board layout.

Part Context

This part belongs to the GBU6 series of single-phase bridge rectifiers from Vishay. The series offers various voltage ratings ranging from 50 V to 1000 V while maintaining a consistent 6 A current handling capability. The GBU6K-E3/51 specifically designates the 400 V variant within this standardized industrial component lineup.

Replacement Considerations

Direct substitutes include other GBU6 series variants with identical current ratings but different voltage ratings, such as GBU6M-E3/51 (500 V) or GBU6P-E3/51 (600 V), provided the system voltage requirements allow. Cross-brand replacements must match the 6 A current, 400 V reverse voltage, and GBU package outline.