GBU405-K

Overview

The GBU405-K is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation. It features a peak average forward current of 4A and a peak repetitive reverse voltage of 600V. The device utilizes a GBU package with four pins for through-hole mounting, measuring 22.3mm in length, 18.8mm in height, and 3.56mm in width. Electrical characteristics include a maximum peak non-repetitive forward surge current of 280A, a peak forward voltage of 1.1V, and a peak reverse current of 500µA. The junction capacitance is specified at 45pF. The component operates within a temperature range of -55°C to +150°C.

Feature Summary

• Glass passivated die construction ensures high reliability and stability under varying thermal conditions.
• High case dielectric strength provides robust insulation and protection against electrical breakdown.
• Low reverse leakage current contributes to improved efficiency and reduced power loss during operation.

Applications

• Printed circuit board applications requiring standard rectification
• General-purpose AC to DC conversion circuits
• Power supply units operating within specified voltage and current limits

Procurement Notes

Verify the specific suffix K against official datasheets to confirm packaging or compliance variations. Confirm RoHS status and lead-free finish requirements with the manufacturer. Check current availability as distribution channels may report limited stock. Ensure the ordering quantity aligns with factory pack sizes. Validate that the GBU package dimensions match the target PCB footprint before finalizing procurement.

Selection Notes

Select this component when a 4A continuous current rating and 600V reverse voltage are required for single-phase rectification. The GBU through-hole package is suitable for applications needing mechanical robustness. Verify that the 1.1V forward voltage drop meets system efficiency targets. Ensure the operating environment stays within the -55°C to +150°C junction temperature range. Consider the 280A surge capability for inrush current handling in capacitive loads.

Part Context

The GBU405-K belongs to the GBU series of glass passivated bridge rectifiers from Taiwan Semiconductor. This series is designed for general-purpose rectification in various electronic equipment. The GBU package offers a compact form factor with high current density capabilities. Similar parts in the series vary primarily by reverse voltage ratings while maintaining the same current and physical specifications.

Replacement Considerations

Cross-reference with Vishay GBU4K-E3/45 for similar 4A, 600V specifications in the GBU package. Verify pinout compatibility and physical dimensions before substitution. Ensure equivalent surge current ratings and thermal performance characteristics match the original design requirements.