GBU407H

Overview

The GBU407H is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, designed for general-purpose power supply applications. It features a peak repetitive reverse voltage (Vrrm) of 1000 V and an average forward rectified current (Io) of 4 A at a case temperature of 100°C. The device utilizes a glass-passivated silicon junction to ensure high reliability and stability under varying thermal conditions. It operates within a junction temperature range of -55°C to +150°C and can withstand a non-repetitive peak forward surge current (Ifsm) of up to 280 A. The component is housed in a GBU plastic package with four terminals, providing a compact solution for printed circuit board mounting.

Feature Summary

• Glass-passivated silicon junction ensures high reliability and stable performance across the operating temperature range.
• High surge overload capability allows the device to withstand transient current spikes during startup or fault conditions.
• Molded plastic case offers flammability classification UL 94 V-0 and high dielectric strength between terminals and case.

Applications

• General-purpose AC-to-DC conversion in power supplies
• Battery chargers and adapters
• Industrial control systems requiring isolated DC rails

Procurement Notes

Verify the specific suffix 'H' against the manufacturer's official datasheet to confirm if it denotes a specific tape-and-reel packaging variant or a particular quality grade distinct from the standard GBU407. Ensure that the ordering information matches the exact mechanical dimensions and marking requirements specified in the latest product documentation to avoid compatibility issues during assembly.

Selection Notes

Select this component when a 1000 V reverse voltage rating is required for mains-connected applications. The 4 A current rating suits low-to-medium power designs. Verify that the GBU footprint on the PCB aligns with the terminal spacing and height specifications. Consider thermal management strategies given the 150°C maximum junction temperature limit and the need for adequate copper area for heat dissipation.

Part Context

The GBU407H belongs to the GBU4 series of single-phase bridge rectifiers from Taiwan Semiconductor. This series is characterized by its robust construction and suitability for through-hole mounting. The '407' designation typically indicates the 1000 V voltage class within the family, while the 'H' suffix may specify packaging or testing variations defined by the manufacturer.

Replacement Considerations

Direct replacements include other 1000 V, 4 A single-phase bridge rectifiers in the GBU package, such as the GBU407 from other manufacturers like Vishay or Littelfuse. Ensure that any substitute part maintains identical pinout configuration, forward voltage characteristics, and thermal resistance values to guarantee circuit performance equivalence.