GBJ30B

Overview

The GBJ30B is a single-phase glass passivated silicon bridge rectifier manufactured by GeneSiC Semiconductor. It features a repetitive peak reverse voltage of 100 V and a maximum average forward rectified current of 5.2 A at an ambient temperature of 25 °C, or 30 A when mounted on a specified heatsink at a case temperature of 98 °C. The device exhibits a maximum forward voltage of 1.05 V and a maximum reverse leakage current of 5 μA at 25 °C. It supports a maximum forward surge current of 420 A under standard pulse conditions. The component operates within a junction temperature range of -50 °C to +150 °C and utilizes a through-hole DIP package.

Feature Summary

• Single in-line DIP package design for compact mounting
• Glass passivation provides high thermal conductivity and low forward voltage
• Epoxy resin material meets UL 94V-0 flammability standards

Applications

• AC to DC power supply conversion
• Bridge rectification in general electronic circuits
• Industrial control systems requiring robust diode protection

Procurement Notes

Verify the manufacturer designation carefully, as distributor listings may display conflicting brand names such as Navitas Semiconductor despite the datasheet identifying GeneSiC Semiconductor. Confirm RoHS compliance status directly with the supplier documentation. Ensure the specific ordering suffix matches the required voltage rating, as the GBJ30 series includes multiple voltage variants that share identical physical dimensions but differ in electrical specifications.

Selection Notes

Select this component based on the 100 V reverse voltage requirement and the specific current handling needs of the application. If the circuit operates without a heatsink, the continuous current capability drops significantly to 5.2 A; therefore, verify if a thermal management solution is necessary to utilize the higher 30 A rating. Consider the 1.05 V forward voltage drop for efficiency calculations and ensure the PCB layout accommodates the GBJ package dimensions and terminal spacing.

Part Context

The GBJ30B belongs to the GBJ30 series, which encompasses voltage ratings from 100 V to 400 V. This series shares a common GBJ package form factor and mechanical footprint. The 'B' suffix specifically denotes the 100 V variant within this family. Other members include GBJ30D (200 V) and GBJ30G (400 V), allowing for standardized mechanical design across different voltage requirements.

Replacement Considerations

Compatible substitutes must match the GBJ package type, 100 V reverse voltage, and equivalent current ratings. Verify that alternative components offer comparable thermal resistance and surge current capabilities to ensure system reliability.