KBP401G

Overview

The KBP401G is a single-phase bridge rectifier manufactured by SMC Diode Solutions. It features a peak repetitive reverse voltage of 50 V and an average rectified output current of 4 A at 50°C ambient temperature. The forward voltage drop is specified as 1.1 V at the rated current, with a maximum reverse leakage current of 5 µA at the peak reverse voltage. The device utilizes glass passivated die construction for stability and is housed in a KBP through-hole package (4-ESIP). It operates within a junction temperature range of -55°C to 150°C.

Feature Summary

• Glass passivated die construction ensures high reliability and stable performance under varying conditions.
• High surge current capability allows the component to withstand transient overcurrent events during operation.
• Plastic case material meets UL flammability classification 94V-0 for enhanced safety standards.

Applications

• General-purpose AC to DC power supply circuits
• Battery charging systems requiring low forward voltage drop
• Industrial control equipment power stages

Procurement Notes

Verify the specific ordering suffix to confirm lead-free status and RoHS compliance, as manufacturing variations may exist. Confirm the package type matches the PCB footprint requirements before integration. Ensure storage conditions adhere to moisture sensitivity level guidelines to prevent soldering defects during assembly processes.

Selection Notes

Select this component when a 50 V reverse voltage rating and 4 A continuous current capacity are required for through-hole mounting. Consider the 1.1 V forward voltage drop for thermal management calculations in the design phase. Verify that the operating environment stays within the specified -55°C to 150°C junction temperature limits for optimal longevity.

Part Context

This part belongs to the KBP series of single-phase bridge rectifiers from SMC Diode Solutions. The series offers various voltage ratings while maintaining a consistent 4 A current capability and KBP package form factor. It serves as a standard solution for general rectification applications where through-hole technology is preferred over surface mount alternatives.

Replacement Considerations

Direct substitutes include other KBP40xG series parts with matching voltage ratings, such as the KBP405G or KBP410G, provided the reverse voltage requirements align. Cross-manufacturer equivalents must match the 4 A current, 50 V rating, and KBP package dimensions for mechanical compatibility.