KBU8B-M3/P

Overview

The KBU8B-M3/P is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes glass passivation for junction protection and is housed in the KBU-4 through-hole package. The device supports an average forward current of 8 A and withstands a maximum repetitive peak reverse voltage of 100 V. Key electrical characteristics include a maximum forward voltage drop of 1 V at rated current, a reverse leakage current of 10 µA at 100 V, and a non-repetitive peak forward surge current capability of 300 A. It operates within a temperature range of -50°C to +150°C.

Feature Summary

• Glass passivated junctions provide enhanced stability and reliability under varying thermal conditions.
• High surge current capability ensures robust performance during transient load events.
• Isolated flange mount design facilitates efficient heat dissipation and secure PCB integration.

Applications

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

Procurement Notes

Verify the specific suffix 'P' against official datasheets to confirm packaging details, as distributor listings may vary. Ensure the component meets RoHS requirements if mandated by your assembly process. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and traceability before procurement.

Selection Notes

Select this component when a high-current, low-voltage bridge rectifier is required for through-hole applications. The KBU-4 package offers a compact footprint suitable for dense layouts. Consider the 100 V rating to ensure adequate margin for line voltage fluctuations. Verify thermal management needs based on the 8 A continuous current rating and ambient operating conditions.

Part Context

This component belongs to the KBU series of bridge rectifiers from Vishay, designed for general-purpose applications. The series is characterized by its robust construction and wide operating temperature range. The KBU-4 package is widely used in power supplies and adapters due to its reliable performance and ease of mounting.

Replacement Considerations

KBU8B-M3/A is a parameter-equivalent alternative from the same manufacturer. Verify pinout compatibility and thermal characteristics before substitution. Other manufacturers offering similar 8 A, 100 V bridge rectifiers in the KBU-4 package should be evaluated for electrical equivalence and mechanical fit.