KBPC5008W-G

Overview

The KBPC5008W-G is a single-phase bridge rectifier manufactured by Comchip Technology, designed for high-current applications. It features a 50 A average forward current rating and an 800 V maximum repetitive peak reverse voltage. The device utilizes a silicon planar structure within a KBPC-W-4 package, supporting both screw mount and through-hole installation styles. Key electrical characteristics include a maximum forward voltage drop of 1.1 V at rated current and a surge current capability of 450 A. The component operates reliably across a temperature range from -55 °C to +150 °C junction temperature, with a low reverse leakage current of 10 µA.

Feature Summary

• High current handling capability suitable for demanding power supply circuits
• Robust thermal performance allowing operation up to 150 °C junction temperature
• Versatile mounting options including screw terminals and solder pins

Applications

• Industrial power supplies requiring high voltage isolation
• Battery charging systems for automotive or heavy machinery
• DC motor drive circuits in industrial automation

Procurement Notes

Verify the specific suffix and marking against the official Comchip Technology datasheet to ensure correct voltage and current ratings. Confirm that the package type matches the intended PCB layout or chassis mounting requirements. Check RoHS compliance status if environmental regulations apply to the final assembly. Ensure storage conditions adhere to manufacturer guidelines to prevent moisture sensitivity issues before reflow or soldering processes.

Selection Notes

Select this component when an 800 V reverse voltage rating is required alongside a 50 A continuous current capacity. Compare the 1.1 V forward voltage drop against system efficiency targets to determine thermal management needs. Evaluate the physical dimensions of the KBPC-W-4 package against available board space or heatsink constraints. Consider the 450 A surge rating for applications involving high inrush currents during startup phases.

Part Context

This part belongs to the KBPC series of bridge rectifiers from Comchip Technology, which are widely used in general-purpose power conversion. The KBPC5008W-G specifically addresses the need for higher voltage blocking capabilities compared to lower-voltage variants like the 50V or 100V versions. It shares the same mechanical footprint as other KBPC-W models, facilitating design flexibility within product families that require different voltage ratings but consistent mounting solutions.

Replacement Considerations

Direct substitutes must match the 50 A current, 800 V voltage, and KBPC-W-4 package. Verify pinout compatibility and thermal resistance values. Cross-reference with GBPC5008W-G from the same manufacturer, noting potential differences in lead configuration or mounting style.