KBU8G-M3/A

Overview

The KBU8G-M3/A is a single-phase bridge rectifier from Vishay General Semiconductor, utilizing glass-passivated silicon junctions for high reliability. It features an average forward rectified current of 8 A and a maximum repetitive peak reverse voltage of 400 V. The device operates within a junction temperature range of -50°C to +150°C and supports a non-repetitive peak forward surge current of 300 A. Packaged in the KBU-4 through-hole format with solder pin termination, it exhibits a typical forward voltage drop of 1 V at full load and a low reverse leakage current of 10 µA at rated voltage.

Feature Summary

• Glass-passivated junctions provide enhanced stability against mechanical stress and thermal cycling variations.

Applications

• General-purpose AC-to-DC power supply conversion circuits
• Battery charging systems requiring robust rectification
• Industrial control equipment power stages

Procurement Notes

Verify the specific suffix designation upon ordering, as the KBU8G-M3/A variant may not be explicitly listed in all distributor catalogs compared to the KBU8G-M3/P tube packaging option. Confirm RoHS compliance status directly with the manufacturer or authorized supplier documentation to ensure adherence to current environmental regulations before finalizing procurement contracts.

Selection Notes

Select this component when a 400 V rating is required for the application's peak inverse voltage conditions. Ensure the PCB layout accommodates the KBU-4 package dimensions and that the thermal management strategy supports the specified 150°C junction temperature limit under continuous 8 A operation loads.

Part Context

This part belongs to the KBU series of bridge rectifiers, designed for general-purpose applications. It shares the same physical footprint and electrical architecture as other variants in the family, differing primarily in voltage ratings and packaging configurations such as bulk versus tube quantities.

Replacement Considerations

The KBU8G-M3/P is documented as a parameter-equivalent alternative from the same manufacturer. Verify that the tube packaging difference does not impact automated assembly processes if switching from bulk distribution.