KBU1004

Overview

The KBU1004 is a single-phase silicon bridge rectifier from the KBU series, manufactured by GeneSiC Semiconductor. It features a molded plastic body with through-hole solder pin termination. The device supports a maximum average forward rectified current of 10 A and offers a repetitive peak reverse voltage rating of 400 V. Key electrical parameters include a peak forward surge current capability of 300 A and a maximum instantaneous forward voltage drop of 1.05 V per leg at Tc = 25 °C. The component operates within a temperature range of -55 °C to +150 °C and utilizes plated leads that are solderable per MIL-STD-750 Method 2026.

Feature Summary

• Ideal for printed circuit board mounting applications
• High forward surge current capability
• Plastic material carries Underwriters Laboratory Flammability Classification 94V-0

Applications

• Printed circuit board power supply designs
• General purpose AC to DC rectification
• Industrial equipment requiring robust thermal performance

Procurement Notes

Verify the manufacturer designation on official documentation, as distributor listings may display Navitas Semiconductor due to corporate acquisition history. Confirm the specific part number suffix matches the required voltage rating. Ensure procurement channels provide original manufacturer datasheets to validate electrical characteristics and mechanical dimensions before integration into production.

Selection Notes

Select this component when a 10 A continuous current rating and 400 V reverse voltage blocking capability are required. The KBU package style is suitable for through-hole mounting on PCBs where high surge current tolerance is necessary. Consider the 1.05 V forward voltage drop for thermal management calculations in low-voltage output applications.

Part Context

The KBU1004 belongs to the KBU10005 through KBU1004 product family, which shares identical current ratings and physical dimensions but varies in reverse voltage capabilities ranging from 50 V to 400 V. This series is designed as a standard silicon bridge rectifier solution for general-purpose electronics, offering a balance of current handling and voltage blocking in a compact molded plastic package.

Replacement Considerations

Direct replacements must match the 10 A current rating, 400 V reverse voltage, and KBU through-hole package footprint. Verify that substitute components meet the same MIL-STD-750 solderability requirements and maintain comparable forward voltage drop characteristics to ensure circuit compatibility.