KBP304G

Overview

The KBP304G is a single-phase bridge rectifier manufactured by SMC Diode Solutions. It features a glass-passivated die construction and is housed in a KBP (4-ESIP) through-hole package. The device supports a peak repetitive reverse voltage of 400 V and an average rectified output current of 3 A at 50°C ambient temperature. Key electrical parameters include a maximum forward voltage drop of 1.1 V at 3 A and a reverse leakage current of 5 µA at 400 V. It operates within a junction temperature range of -55°C to 150°C.

Feature Summary

• Glass passivated die construction for enhanced stability
• High surge current capability for robust performance
• Low forward voltage drop for improved efficiency

Applications

• Half-wave rectification in AC-to-DC power supplies
• Bridge rectifier circuits for general-purpose electronics
• Power supply units with resistive or inductive loads

Procurement Notes

Verify the specific manufacturer lot traceability and RoHS compliance status before integration, as production statuses may vary. Confirm that the 4-ESIP package dimensions match the target PCB footprint. Ensure thermal management strategies account for the 150°C maximum junction temperature limit under full load conditions.

Selection Notes

Select this component when a 3 A current rating and 400 V reverse voltage are required in a through-hole configuration. Compare against similar KBP series variants if higher current or voltage ratings are needed. Consider the 1.1 V forward voltage drop impact on system efficiency during high-current operation phases.

Part Context

The KBP304G belongs to the KBP series of single-phase bridge rectifiers from SMC Diode Solutions. This series utilizes molded plastic cases with UL flammability rating 94V-0. The components are designed for general-purpose rectification applications requiring reliable performance in standard industrial and consumer electronic environments.

Replacement Considerations

Direct substitutes include other 3 A, 400 V bridge rectifiers in the KBP package, such as the KBP301G or KBP306G, provided voltage ratings align with circuit requirements. Verify pinout compatibility and thermal characteristics when cross-referencing with equivalent parts from other manufacturers.