KBU4D-M3/A

Overview

The KBU4D-M3/A is a single-phase standard bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an average rectified current (Io) of 4 A and a maximum repetitive peak reverse voltage (Vrrm) of 200 V. The forward voltage drop (Vf) is specified at 950 mV when conducting 4 A, with a reverse leakage current of 5 µA at the rated voltage. The device operates within a junction temperature range of -50°C to 150°C and utilizes a through-hole 4-SIP KBU package.

Feature Summary

• Single-phase bridge rectifier configuration for AC-to-DC conversion
• Through-hole mounting in a compact KBU plastic case
• High thermal stability supporting extended operating temperatures

Applications

• General-purpose power supply circuits
• AC adapter implementations
• Low-voltage DC power distribution systems

Procurement Notes

Verify component authenticity against official Vishay datasheets before integration. Confirm that the M3 suffix indicates lead-free compliance and halogen-free material status as per RoHS directives. Ensure the KBU package dimensions match the target PCB footprint requirements during the design phase.

Selection Notes

Select this component for applications requiring 200 V blocking capability and 4 A continuous current handling. Evaluate thermal management strategies to maintain junction temperatures within the specified 150°C limit under full load conditions. Consider the 950 mV forward voltage drop impact on overall system efficiency.

Part Context

This part belongs to the Vishay KBU series of bridge rectifiers, designed for general-purpose rectification tasks. The series offers various voltage ratings while maintaining consistent mechanical packaging standards. The M3 designation signifies environmental compliance attributes aligned with modern manufacturing regulations.

Replacement Considerations

The KBU4D-M3/P is documented as a parameter-equivalent substitute from the same manufacturer. Verify pinout compatibility and thermal characteristics before swapping components in existing designs.