GBU2504

Overview

The GBU2504 is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, utilizing glass passivated die construction for enhanced reliability. It features an average forward rectified current (Io) of 25 A and a maximum repetitive peak reverse voltage (Vrrm) ranging from 400 V to 1000 V, with the '04' suffix indicating a 400 V rating. The device exhibits a typical forward voltage drop (Vf) of 1.2 V at 25 A and a maximum reverse leakage current of 10 µA at 800 V. It operates within a junction temperature range of -55°C to 150°C and supports a peak forward surge current of 300 A. The component is housed in a GBU plastic package with through-hole mounting terminals.

Feature Summary

• Glass passivated die construction provides high reliability and protection against voltage transients.
• Integrally molded heatsink design ensures very low thermal resistance for efficient heat dissipation.
• Low forward voltage drop enhances overall circuit efficiency during power conversion.
• High surge current capability allows robust performance under transient load conditions.

Applications

• General purpose single phase bridge rectification circuits
• Switching mode power supplies (SMPS)
• AC adapters and power chargers
• Television and monitor internal power stages

Procurement Notes

Verify the manufacturer marking on the component body to confirm Taiwan Semiconductor origin, as multiple vendors produce identical GBPC/GBU form factors. Ensure the specific voltage suffix matches the circuit requirement, as the base series spans 400V to 1000V. Check for RoHS compliance documentation if environmental regulations apply to the final assembly. Confirm package integrity upon receipt, as plastic encapsulation can be susceptible to mechanical stress during handling.

Selection Notes

Select this component when a 25 A continuous current rating and 400 V blocking voltage are required in a compact through-hole package. The GBU footprint offers higher current density compared to smaller packages like GBJ or KBPC. Consider the 1.2 V forward voltage drop for thermal management calculations in high-efficiency designs. Verify that the PCB layout accommodates the specific lead spacing and heatsinking requirements of the GBU case style.

Part Context

The GBU2504 belongs to the broader GBU series of glass passivated single-phase bridge rectifiers produced by Taiwan Semiconductor. This series covers current ratings up to 25 A and reverse voltages from 50 V to 1000 V. The GBU package is distinct from the GBPC series by its specific pin configuration and mounting dimensions, designed for direct PCB integration without additional standoffs. It serves as a standard solution for mid-power AC-DC conversion applications.

Replacement Considerations

Direct pin-compatible substitutes include the GBU2504 from other manufacturers such as Diotec or Micro Commercial Components. Vishay offers the VS-GBU2504A variant with similar electrical characteristics. Ensure any replacement maintains the same GBU package outline and glass passivation technology to preserve thermal and reliability performance.