GBU8K-E3/45

Overview

The GBU8K-E3/45 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes glass passivation for junction protection and is housed in a GBU through-hole package. The device supports a maximum repetitive peak reverse voltage of 800 V and an average forward rectified current of 8 A per leg. It features a low forward voltage drop of 1 V at rated current and handles a peak non-repetitive forward surge current of 200 A. The component operates within a junction temperature range of -55°C to +150°C and complies with RoHS 3 standards.

Feature Summary

• Glass passivated construction provides stable electrical characteristics and environmental resistance.
• High surge current capability allows robust performance during transient load conditions.
• Low forward voltage drop contributes to improved efficiency and reduced thermal stress.

Applications

• AC to DC conversion in power supply units
• Full-wave rectification in adapter circuits
• General-purpose rectification in industrial equipment

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm pinout orientation and packaging type, as variations exist within the GBU8 series. Confirm that the E3 designation aligns with current RoHS 3 compliance requirements for your region. Check for any recent Product Change Notifications regarding manufacturing location or material composition updates before finalizing procurement.

Selection Notes

Select this component when a through-hole single-phase bridge rectifier with 800 V blocking voltage and 8 A continuous current rating is required. Ensure the GBU footprint matches the PCB layout constraints. Consider the 150°C maximum junction temperature for high-temperature environments. Verify that the 200 A surge rating exceeds the expected inrush currents of the target application circuit.

Part Context

This part belongs to the GBU8 series of glass passivated single-phase bridge rectifiers from Vishay. The series offers various voltage ratings while maintaining consistent 8 A current handling and GBU packaging dimensions. The GBU8K variant specifically denotes the 800 V rating within this lineup, providing a standardized solution for medium-power AC-DC applications requiring reliable through-hole mounting.

Replacement Considerations

Publicly confirmed substitute part numbers include GBU8K-M3/45 from Vishay General Semiconductor. Other manufacturers may offer equivalent specifications, but direct cross-reference requires verification of pinout compatibility and thermal characteristics against the original datasheet.