GBU404-G

Overview

The GBU404-G is a single-phase bridge rectifier manufactured by Comchip Technology. It features a 4 A average forward current rating and a 400 V maximum repetitive peak reverse voltage. The device utilizes glass passivated chip junctions for enhanced reliability. Electrical characteristics include a maximum non-repetitive peak forward surge current of 150 A, a typical forward voltage drop of 1.1 V at rated current, and a maximum reverse leakage current of 5 uA. The component operates within a temperature range of -55 °C to +150 °C and is housed in a GBU-4 through-hole package.

Feature Summary

• Glass passivated chip junction construction ensures high reliability and stable performance under varying thermal conditions.
• Molded plastic case meets Underwriters Laboratories flammability classification 94V-0 standards.
• Terminals are pure tin plated, lead-free, and solderable per MIL-STD-202 Method 208.

Applications

• Printed circuit board mounting for general power supply applications.
• AC to DC conversion circuits requiring robust surge handling capabilities.
• Industrial equipment power stages operating within extended temperature ranges.

Procurement Notes

Verify the specific manufacturer part number against official Comchip Technology documentation to ensure authenticity. Confirm RoHS compliance status and packaging details directly with authorized distributors. Cross-reference datasheet parameters such as forward voltage and reverse leakage with current production batches to guarantee compatibility with design specifications.

Selection Notes

Select this component when a 4 A current capacity and 400 V blocking voltage are required in a through-hole configuration. Ensure the application environment supports the specified operating temperature range up to +150 °C. Verify that the PCB layout accommodates the GBU-4 package dimensions and terminal spacing for proper mechanical mounting and thermal dissipation.

Part Context

This component belongs to the GBU40x series of single-phase bridge rectifiers from Comchip Technology. The series offers various voltage ratings while maintaining consistent current handling and package form factors. These devices are designed for reliable operation in standard industrial and commercial electronic applications requiring efficient AC rectification.

Replacement Considerations

Compatible substitutes include the GBU404X2G from Taiwan Semiconductor, which shares identical electrical ratings and the GBU-4 package outline. Verify pinout compatibility and thermal resistance characteristics before implementation.