KBU4G-M3/A

Overview

The KBU4G-M3/A is a single-phase standard bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a 400 V maximum repetitive peak reverse voltage and supports an average forward rectified current of 4 A. The component utilizes a standard silicon junction technology with a 950 mV forward voltage drop at the rated current. Designed for through-hole mounting in a 4-SIP KBU package, it operates within a junction temperature range of -50°C to 150°C. Reverse leakage current is specified at 5 µA under 200 V conditions.

Feature Summary

• Single-phase bridge rectification configuration
• Through-hole KBU package design
• Standard silicon junction construction

Applications

• General-purpose AC to DC power conversion
• Bridge rectifier circuits in consumer electronics
• Industrial control power supplies

Procurement Notes

Verify the specific part number against official manufacturer documentation to ensure compatibility. Confirm that the suffix 'M3' indicates lead-free status as per Vishay standards. Cross-reference datasheet parameters such as voltage and current ratings with system requirements before procurement.

Selection Notes

Select this component when a 400 V rating and 4 A continuous current capacity are required. Ensure the PCB layout accommodates the KBU through-hole footprint. Verify thermal management capabilities for the expected operating environment given the 150°C maximum junction temperature limit.

Part Context

This component belongs to the KBU series of bridge rectifiers from Vishay. The series offers various voltage ratings including 200 V, 400 V, 600 V, and 800 V options. The KBU4G variant specifically provides the 400 V blocking capability within the 4 A current class.

Replacement Considerations

KBU4G-M3/P is a parameter-equivalent alternative from the same manufacturer.