KBU801G

Overview

The KBU801G is a single-phase glass passivated bridge rectifier from the KBU8 series, manufactured by Lumimax Optoelectronic Technology. It features a molded plastic KBU case with UL 94V-0 flame retardant epoxy and solderable terminals compliant with MIL-STD-202. The device supports a maximum average forward rectified current of 8.0 A at a case temperature of 100°C and withstands a peak forward surge current of 300 A for an 8.3 ms half-sine wave. Electrical specifications include a maximum repetitive peak reverse voltage (VRRM) of 100 V, a maximum RMS voltage of 70 V, and a maximum DC blocking voltage of 100 V. The typical junction capacitance is 250 pF, measured at 1.0 MHz with 4.0 V DC reverse bias.

Feature Summary

• Glass passivated chip construction for enhanced reliability
• High surge current capability for robust performance
• Low forward voltage drop to minimize power loss
• Designed for efficient printed circuit board mounting

Applications

• Printed circuit board rectification in general electronics
• Power supply units requiring high surge tolerance
• Adapters and chargers utilizing half-wave rectification

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's official datasheet revision date and part number markings on the physical package. Confirm terminal solderability meets MIL-STD-202 standards during incoming inspection. Ensure storage conditions remain within the specified temperature range to maintain material integrity prior to assembly.

Selection Notes

Select the KBU801G when a 100 V reverse voltage rating is required alongside an 8.0 A continuous current capacity. Consider this component for applications demanding a low-profile KBU package with high surge immunity up to 300 A. Verify that the operating junction temperature range of -50°C to +150°C aligns with the thermal environment of the target design.

Part Context

This component belongs to the KBU8 series, which spans voltage ratings from 50 V to 1000 V while maintaining a consistent 8.0 A current rating across all variants. The series utilizes a standardized KBU molded plastic case, ensuring mechanical compatibility for designs transitioning between different voltage levels within the same product line.

Replacement Considerations

Direct substitutes must match the 100 V VRRM, 8.0 A IF(AV), and KBU package dimensions. Verify that alternative components offer comparable surge current ratings and glass passivation technology to ensure equivalent reliability in high-stress environments.