KBU6K

Overview

The onsemi KBU6K is a single-phase bridge rectifier designed for through-hole mounting in the GBU-4 package. It features a maximum average forward rectified current of 6 A and a peak repetitive reverse voltage rating of 1000 V. The device exhibits a typical forward voltage drop of 1 V at rated current and supports a maximum surge current of 175 A. Operating temperatures range from -55 °C to +150 °C, with a power dissipation capacity of 12 W and a low reverse leakage current of 5 µA.

Feature Summary

• High thermal stability enabling operation up to 150 °C junction temperature
• Robust surge current handling capability for transient protection
• Low forward voltage drop for improved efficiency
• Through-hole solder pin termination for secure PCB attachment

Applications

• AC-to-DC power supply circuits
• Battery charging systems
• General-purpose rectification in industrial equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical tolerances and compliance status. Ensure the procurement channel provides valid traceability documentation. Confirm that the component meets all relevant environmental regulations required for the target deployment region before finalizing orders.

Selection Notes

Select this component when a 1000 V reverse voltage rating is required alongside a 6 A continuous current capacity. The GBU-4 through-hole package is suitable for applications requiring robust mechanical mounting. Compare thermal resistance values against the system's heat dissipation capabilities to ensure reliable operation within the specified temperature range.

Part Context

The KBU6K belongs to the GBU series of bridge rectifiers manufactured by onsemi. This series utilizes a plastic encapsulation molded compound for durability. The part number indicates a 6 A current rating and a 1000 V voltage class, distinguishing it from lower voltage variants like the GBU6K (800 V) or higher current models within the same family.

Replacement Considerations

Direct substitutes include other 6 A, 1000 V bridge rectifiers in the GBU-4 package such as the GBU6K if the voltage margin allows. Verify pinout compatibility and thermal characteristics before substitution.