GBU4J-E3/45

Overview

The GBU4J-E3/45 is a glass passivated single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum repetitive peak reverse voltage (VRRM) of 600 V and a maximum average forward rectified output current (IF(AV)) of 4.0 A at a case temperature of 100 °C. The device supports a peak forward surge current (IFSM) of 150 A and exhibits a maximum instantaneous forward voltage drop (VF) of 1.0 V at 4.0 A. Electrical characteristics include a maximum DC reverse current (IR) of 5 μA at rated blocking voltage and 25 °C, with a typical junction capacitance of 57 pF. Thermal resistance values are specified as 4.2 °C/W (junction-to-case) and 22 °C (junction-to-ambient). The component operates within a junction and storage temperature range of -55 to +150 °C.

Feature Summary

• Glass passivation provides mechanical strength and protects against mechanical stresses
• High surge current capability ensures robustness during transient load conditions
• High case dielectric strength of 1500 V RMS offers enhanced isolation safety
• Molding compound meets UL 94 V-0 flammability rating for fire safety

Applications

• AC/DC bridge full wave rectification in monitors
• Power supply circuits for televisions and printers
• Switching mode power supplies and adapters
• Audio equipment and home appliances

Procurement Notes

Verify the specific ordering suffix to confirm packaging format. The suffix /45 indicates tube packaging with a base quantity of 20 units per tube. Confirm RoHS compliance status based on the E3 designation. Ensure the selected variant matches the required voltage and current ratings for the target circuit design before finalizing procurement orders.

Selection Notes

Select this component when a 600 V reverse voltage rating and 4.0 A continuous current capacity are required. Verify thermal management requirements, as the current rating depends on the mounting method. Consider the GBU package dimensions for PCB layout constraints. Evaluate the 150 A surge current capability against potential inrush currents in the application environment.

Part Context

This part belongs to the GBU4 series of single-phase bridge rectifiers from Vishay. The series includes variants with different voltage ratings such as GBU4A (50 V), GBU4B (100 V), GBU4D (200 V), GBU4G (400 V), GBU4K (800 V), and GBU4M (1000 V). All variants share the same 4.0 A current rating and GBU package style.

Replacement Considerations

Direct substitutes within the same family include GBU4G-E3/45 (400 V) or GBU4K-E3/45 (800 V) if voltage headroom allows. Cross-manufacturer equivalents must be verified for matching IF(AV), VRRM, VF, and package dimensions.