KBP404G

Overview

The KBP404G is a single-phase bridge rectifier manufactured by SMC Diode Solutions, designed for general-purpose power supply applications. It features a maximum repetitive peak reverse voltage of 400V and an average forward rectified current of 4A. The device utilizes standard silicon technology with a low forward voltage drop of 1.1V at full load. It is housed in a compact KBP (4-ESIP) surface-mount package, allowing for efficient PCB layout. The component operates reliably within a junction temperature range of -55°C to 150°C and meets RoHS3 compliance standards.

Feature Summary

• Integrated single-phase bridge configuration for AC-to-DC conversion
• Compact surface-mount KBP package design for space-constrained layouts
• High thermal stability supporting extended operating temperatures up to 150°C

Applications

• General-purpose DC power supplies
• Adapters and chargers
• Battery charging circuits

Procurement Notes

Verify the manufacturer part number KBP404G against official SMC Diode Solutions documentation to ensure authenticity. Confirm that the specific ordering suffix matches the required packaging format. Check for RoHS3 compliance markers on the component body or datasheet to meet environmental regulations. Validate the package type as KBP (4-ESIP) during incoming inspection.

Selection Notes

Select this component when a 4A current rating and 400V reverse voltage are required for AC rectification. The KBP package is suitable for surface-mount assembly processes. Ensure the application does not exceed the 1.1V forward voltage drop specification at 4A to manage thermal dissipation effectively within the enclosure.

Part Context

This component belongs to the KBP4 series of bridge rectifiers from SMC Diode Solutions. The series offers various voltage ratings while maintaining a consistent 4A current capacity and standardized KBP footprint. This allows designers to swap voltage variants without altering the PCB layout, simplifying the supply chain and inventory management for power supply designs.

Replacement Considerations

Compatible replacements include other 4A, 400V single-phase bridge rectifiers in the KBP package. Verify pinout compatibility and thermal resistance characteristics before substitution.