KBJ2508G

Overview

The GeneSiC Semiconductor KBJ2508G is a single-phase glass-passivated silicon bridge rectifier designed for through-hole mounting. It features a maximum average forward rectified current (IO) of 25 A and a repetitive peak reverse voltage (VRRM) of 800 V. The device exhibits a maximum instantaneous forward voltage (VF) of 1.05 V at 12.5 A and a maximum reverse current (IR) of 10 μA at rated DC blocking voltage. It supports a peak forward surge current (IFSM) of 350 A under standard half-sine wave conditions. The component operates within an ambient temperature range of -55 °C to 125 °C, with a storage temperature capability extending up to 150 °C.

Feature Summary

• Glass passivation provides stable electrical characteristics and reliable performance.
• Plastic molding compound meets UL flammability classification 94V-0.
• Low forward voltage drop reduces power dissipation and improves system efficiency.

Applications

• Printed circuit board assembly in industrial electronics
• AC to DC conversion in power supply units
• General purpose rectification in consumer appliances

Procurement Notes

Verify the manufacturer designation on official documentation, as sourcing channels may list alternative brand names for this specific part number. Confirm that the procurement source provides valid datasheets matching the KBJ2506G-KBJ2510G series specifications. Ensure compliance with RoHS directives if lead-free variants are required for the target application environment.

Selection Notes

Select the KBJ2508G when an 800 V reverse voltage rating is necessary for AC line applications. The 25 A current capacity suits moderate power requirements where thermal management allows operation below 125 °C junction temperature. Consider derating by 20% if the load is capacitive to ensure safe operating limits are maintained during peak current events.

Part Context

This component belongs to the KBJ2506G through KBJ2510G series of single-phase bridge rectifiers. The series shares identical physical dimensions and pin configurations, differing primarily in their voltage ratings which range from 600 V to 1000 V. All members utilize the same KBJ package style and maintain consistent current handling capabilities across the lineup.

Replacement Considerations

Compatible substitutes include other KBJ-series bridge rectifiers with equal or higher voltage ratings, such as the KBJ2510G. Cross-reference with generic KBJ2508 equivalents from other manufacturers, ensuring the replacement maintains the 800 V minimum reverse voltage and 25 A current rating.