GBU805-K

Overview

The GBU805-K is an 8A standard bridge rectifier from the Taiwan Semiconductor GBU804-K to GBU807-K series. It features a 600V repetitive peak reverse voltage (VRRM) and a total RMS reverse voltage of 420V. The device supports a maximum forward current of 8A and a surge peak forward current of 200A. Electrical specifications include a typical forward voltage of 1.1V at 8A and a junction capacitance of 94pF. Thermal performance data indicates a junction-to-ambient thermal resistance of 21°C/W and a junction-to-case thermal resistance of 2°C/W. The component operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• High case dielectric strength rated at 1500VRMS for enhanced isolation
• Typical leakage current less than 0.1μA under specified conditions
• Compliant with UL recognition file E-326243 and RoHS standards
• Halogen-free construction according to IEC 61249-2-21

Applications

• Switching mode power supplies (SMPS)
• Power adapters
• Lighting applications

Procurement Notes

Verify the specific part number against the manufacturer's official datasheet to confirm electrical ratings and package dimensions. Ensure compliance with RoHS and halogen-free requirements if mandated by project specifications. Confirm that the GBU package style matches the intended PCB footprint and mounting torque limits of 0.56 N⋅m maximum.

Selection Notes

Select the GBU805-K when a 600V blocking capability is required for single-phase bridge rectification. This component is suitable for designs needing an 8A continuous forward current rating. Consider the thermal resistance values for heat dissipation planning in enclosed environments. Verify that the operating temperature range meets the environmental demands of the target application.

Part Context

The GBU805-K belongs to the GBU804-K through GBU807-K product family manufactured by Taiwan Semiconductor. This series offers standardized 8A bridge rectifiers with varying voltage ratings from 400V to 1000V. The GBU805-K specifically provides the 600V option within this lineup, sharing identical mechanical and thermal characteristics with its siblings.

Replacement Considerations

Direct substitutes must match the 8A current rating, 600V reverse voltage, and GBU package outline. Verify equivalent thermal resistance and forward voltage characteristics to ensure circuit compatibility without redesign.