KBU8M-M3/P

Overview

The KBU8M-M3/P is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an 8 A average forward rectified current (Io) and a 1000 V maximum repetitive peak reverse voltage (Vrrm). The device utilizes glass passivation for junction protection and is housed in a KBU-4 through-hole package with solder pin termination. Key electrical characteristics include a typical forward voltage of 1 V at 8 A, a maximum reverse leakage current of 10 µA at 1000 V, and a peak non-repetitive forward surge current (Ifsm) of 300 A. The operating junction temperature range spans from -50 °C to +150 °C.

Feature Summary

• Glass passivated junctions provide stable performance and long-term reliability under varying thermal conditions.
• High surge current capability supports robust operation during transient overload events.
• Through-hole mounting facilitates integration into standard PCB layouts requiring high current density.

Applications

• General-purpose AC to DC power supply conversion circuits
• Battery charging systems requiring high reverse voltage tolerance
• Industrial control equipment power stages

Procurement Notes

Verify the complete part number including the suffix /P to ensure correct packaging configuration. Confirm RoHS compliance status via the official datasheet before procurement. Cross-reference the manufacturer's latest product change notifications to verify material composition updates. Ensure the ordering quantity aligns with the factory tube pack size specified in the documentation.

Selection Notes

Select this component when circuit design requires a 1000 V blocking voltage with 8 A continuous current handling. The KBU-4 package offers sufficient thermal dissipation for through-hole applications. Verify that the 1 V forward voltage drop meets system efficiency targets. Ensure the PCB layout accommodates the specific lead spacing and physical dimensions of the KBU-4 housing.

Part Context

This component belongs to the KBU series of bridge rectifiers designed for general-purpose applications. The M3 suffix indicates lead-free termination and halogen-free compound compliance. The P suffix denotes tube packaging. This series provides a balance of high current capacity and voltage rating for industrial and commercial power electronics.

Replacement Considerations

KBU8A-M3/P is listed as a parameter-equivalent alternative within the same manufacturer portfolio. Verify voltage ratings and package compatibility before substitution. Other manufacturers may offer similar specifications but require independent validation of thermal and electrical parameters.