GBLA04-E3/45

Overview

The GBLA04-E3/45 is a glass-passivated single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an in-line circuit configuration within a GBL package, rated for a maximum repetitive peak reverse voltage of 400 V and a maximum average forward rectified output current of 4.0 A at a case temperature of 50 °C. The device supports a peak forward surge current of 120 A and exhibits a typical instantaneous forward voltage drop of 1.0 V at 4.0 A. Operating junction temperatures range from -55 °C to +150 °C, with a maximum DC reverse current of 5.0 μA at 25 °C.

Feature Summary

• Glass passivation provides mechanical strength and meets UL 94 V-0 flammability ratings
• High surge current capability suitable for demanding power applications
• Matte tin plated leads ensure solderability per J-STD-002 standards

Applications

• AC/DC bridge full wave rectification
• Monitor and TV power supplies
• Printer and SMPS adapter circuits
• Audio equipment and home appliances

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for the E3 suffix indicating lead-free construction. Validate that the ordering code matches the specific voltage rating required for the target application before finalizing procurement.

Selection Notes

Select this component based on the 400 V reverse voltage requirement and 4 A continuous current capacity. Ensure thermal management aligns with the specified derating curves for ambient temperatures exceeding 40 °C. Verify PCB footprint compatibility with the GBL package dimensions and confirm lead length requirements for mounting constraints.

Part Context

This part belongs to the GBLAxx series of glass-passivated bridge rectifiers designed for general-purpose AC/DC conversion. The 'A' designation indicates the specific voltage rating variant within the broader GBL family. These components are widely used in consumer electronics and industrial control systems requiring reliable single-phase rectification.

Replacement Considerations

Official alternative devices include the GBL005E, GBL01E, GBL02E, GBL04E, GBL06E, GBL08E, and GBL10E series. These replacements maintain similar form factors but may differ in specific electrical characteristics or manufacturing processes. Verify pinout compatibility and thermal resistance values when substituting.

FAQ

What is the maximum operating junction temperature for the GBLA04-E3/45?

The maximum operating junction temperature (TJ max) is 150 °C.

How is polarity indicated on the GBLA04-E3/45 package?

Polarity is marked directly on the body of the component, with the positive lead identified by a beveled corner.

What is the typical thermal resistance (RθJA) for this device?

The typical thermal resistance RθJA is 47 °C/W when mounted on a PCB with 0.375-inch lead length and 0.5 x 0.5 inch copper pads.