KBU4J-M3/A

Overview

The KBU4J-M3/A is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an average rectified output current of 4 A and a maximum repetitive peak reverse voltage of 600 V. The device utilizes standard silicon technology with a forward voltage drop of 1.15 V at 4 A and a maximum non-repetitive peak forward surge current of 125 A. Operating within a junction temperature range of -50°C to +150°C, it is housed in an isolated KBU (4-SIP) through-hole package.

Feature Summary

• Glass-passivated junctions for enhanced environmental stability
• Isolated case construction for safety compliance
• High surge current capability for robust operation

Applications

• General-purpose AC-to-DC power supply conversion
• Battery charging circuits
• Low-voltage DC power supplies

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and marking consistency. Confirm RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Ensure storage conditions align with semiconductor handling standards to prevent moisture sensitivity issues prior to soldering.

Selection Notes

Select this component when a 600 V blocking voltage and 4 A continuous current rating are required in a compact through-hole form factor. Compare forward voltage characteristics against alternative bridge rectifiers to ensure thermal management requirements are met within the target application's operating environment.

Part Context

This part belongs to the KBU series of glass-passivated bridge rectifiers from Vishay. The series provides a standardized solution for general-purpose rectification applications requiring reliable performance in through-hole mounting configurations. The M3 designation indicates lead-free termination and halogen-free compound compliance.

Replacement Considerations

KBU4J-M3/P serves as a parameter-equivalent alternative within the same product line.