KBJ2504G

Overview

The GeneSiC Semiconductor KBJ2504G is a single-phase glass-passivated silicon bridge rectifier designed for printed circuit board mounting. It features a KBJ package with screw terminals and supports a repetitive peak reverse voltage (VRRM) of 400 V. The device handles a maximum average forward rectified current (IO) of 25 A at 25 °C and withstands a peak forward surge current (IFSM) of 350 A under half-sine wave conditions. It exhibits a maximum instantaneous forward voltage drop of 1.05 V per leg at 12.5 A and operates within a junction temperature range of -55 °C to 125 °C.

Feature Summary

• Single-phase glass-passivated silicon construction
• Ideal for printed circuit board installation
• Not ESD sensitive

Applications

• General purpose AC to DC rectification in power supplies
• Industrial control systems requiring PCB-mounted rectifiers
• Consumer electronics utilizing standard bridge configurations

Procurement Notes

Verify the manufacturer designation, as some distributors list this component under Navitas Semiconductor or GeneSiC Semiconductor due to corporate restructuring. Confirm the specific datasheet version matches the required electrical parameters, particularly the 400 V rating and 25 A current capacity. Ensure the ordering suffix 'G' corresponds to the lead-free and halogen-free compliant variant if environmental compliance is a project requirement.

Selection Notes

Select the KBJ2504G when a 400 V blocking capability is necessary for single-phase applications. The 25 A continuous current rating suits moderate power levels, while the 350 A surge capability provides robustness against transient overloads. Consider the KBJ package dimensions and terminal spacing for PCB layout compatibility. Derate the forward current by 20% if the load is capacitive to ensure reliable operation within thermal limits.

Part Context

The KBJ series represents a line of single-phase bridge rectifiers from GeneSiC Semiconductor, offering various voltage ratings from 50 V to 400 V. The KBJ2504G specifically targets the 400 V segment of this family. These components are characterized by low forward voltage drops and high current capabilities, making them suitable for cost-effective and reliable power conversion designs in industrial and consumer markets.

Replacement Considerations

Cross-reference with Vishay VS-KBJ2504G or onsemi GBPC2504G equivalents, ensuring identical pinout and mechanical dimensions for direct replacement. Verify that substitute parts meet the same 400 V VRRM and 25 A IO specifications. Check for any differences in forward voltage characteristics or thermal resistance that might impact system performance.