KBL04-E4/51

Overview

The KBL04-E4/51 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a peak repetitive reverse voltage of 400 V and an average forward rectified current of 4 A. The device utilizes the KBU package for through-hole mounting and includes four pins. It exhibits a maximum non-repetitive peak forward surge current of 200 A and a typical peak forward voltage of 1 V at rated conditions. The component operates within a junction temperature range of -50°C to +150°C, with a specified peak reverse current of 5 µA.

Feature Summary

• Single-phase bridge rectifier configuration
• Through-hole mounting capability
• High surge current handling capacity

Applications

• General-purpose power supply circuits
• AC-to-DC conversion systems
• Industrial control equipment

Procurement Notes

Verify the exact ordering suffix against official Vishay documentation to confirm package type and compliance status. Ensure the procurement channel sources directly from authorized distributors or the manufacturer to guarantee authenticity. Cross-reference the full part number with the latest datasheet revisions before finalizing purchase orders.

Selection Notes

Select this component when a 4 A continuous current rating and 400 V blocking voltage are required in a compact through-hole footprint. Evaluate thermal management requirements based on the KBU package dimensions and ambient operating temperatures. Confirm that the 200 A surge rating meets the specific circuit inrush current demands during startup phases.

Part Context

This part belongs to the KBL/KBU series of single-phase bridge rectifiers designed for general electronic applications. The series offers various voltage ratings while maintaining consistent current capabilities and mechanical form factors. Vishay utilizes this platform to provide reliable AC-to-DC conversion solutions across diverse industrial and consumer electronics markets.

Replacement Considerations

Direct replacements must match the 4 A current rating, 400 V reverse voltage, and KBU/SMD-compatible through-hole package. Verify pinout compatibility and thermal characteristics before substitution.