KBU802G

Overview

The KBU802G is a glass passivated bridge rectifier from the KBU series, rated for a maximum repetitive peak reverse voltage of 200 V and a maximum DC blocking voltage of 200 V. It supports a maximum average forward rectified current of 8.0 A at a case temperature of 100°C. The device features a peak forward surge current capability of 300 A under single half-sine-wave conditions. Electrical characteristics include a maximum instantaneous forward drop of 1.0 V at 8.0 A and a typical junction capacitance of 250 pF. It operates within a junction and storage temperature range of -50 to +150°C.

Feature Summary

• Glass passivated chip construction for enhanced reliability
• Molded plastic case with UL 94V-0 flame retardant epoxy
• High surge current capability for robust performance

Applications

• Printed circuit board mounting applications
• General-purpose AC to DC rectification
• Power supply input stages

Procurement Notes

Verify the specific part number against official Lumimax Optoelectronics Technology documentation to confirm electrical ratings and mechanical specifications. Ensure compatibility with required thermal management strategies, as the maximum average forward current rating depends on maintaining the case temperature at or below 100°C. Confirm package integrity and terminal solderability standards prior to integration.

Selection Notes

Select the KBU802G when a 200 V reverse voltage rating is required alongside an 8.0 A continuous current capacity. Consider the 1.0 V forward voltage drop for efficiency calculations at full load. Evaluate the 300 A surge rating against potential inrush currents in the target circuit. Ensure the operating environment stays within the specified -50 to +150°C junction temperature range.

Part Context

The KBU802G belongs to the KBU8005G through KBU810G series of glass passivated bridge rectifiers manufactured by Lumimax Optoelectronics Technology. This series offers varying voltage ratings from 50 V to 1000 V while maintaining a consistent 8.0 A current rating. The components are designed for high-reliability applications requiring compact footprint and robust surge handling capabilities.

Replacement Considerations

Compatible substitutes include other KBU-style bridge rectifiers with matching 200 V reverse voltage and 8.0 A current ratings. Verify pinout compatibility and physical dimensions before substitution. Ensure replacement parts meet the same glass passivation and UL 94V-0 flame retardancy standards.