KBU6B

Overview

The KBU6B is a single-phase bridge rectifier manufactured by onsemi, utilizing the KBU plastic case style. It features four silicon diode elements configured for full-wave rectification with an isolated case connection. The device supports a maximum average forward rectified current of 6 A and offers a repetitive peak reverse voltage rating of 100 V. Key electrical characteristics include a non-repetitive peak forward surge current capability of 250 A, a maximum reverse leakage current of 5 µA, and a typical forward voltage drop of 1.0 V. The component operates within a junction temperature range up to 150 °C and meets MSL level 1 standards per J-STD-020C.

Feature Summary

• High surge current capability designed to withstand transient overloads
• High case dielectric strength rated at 1500 V RMS for enhanced isolation
• Epoxy casing complies with UL-94V-0 flammability ratings
• Terminals are silver-plated to ensure solderability per standard methods

Applications

• Printed circuit board mounting in power supply circuits
• General-purpose AC to DC conversion applications
• Industrial equipment requiring robust bridge rectification

Procurement Notes

Verify the manufacturer designation carefully, as Vishay also produces components under the identical KBU6B part number. Confirm that the specific ordering suffix matches the required terminal plating and compliance specifications. Ensure the received component aligns with the intended manufacturer's datasheet parameters before integration into the design.

Selection Notes

Select this component when a 6 A continuous current rating and 100 V blocking voltage are required in a surface-mountable KBU package. Consider the 250 A surge capability for circuits with high inrush currents. Verify thermal management requirements against the 150 °C maximum junction temperature limit during operation.

Part Context

This component belongs to the KBU series of single-phase bridge rectifiers, which are widely used in compact power supply designs. The series typically spans various voltage ratings from 50 V to 1000 V while maintaining a consistent 6 A current capacity and standardized mechanical footprint for easy PCB layout.

Replacement Considerations

Cross-reference with other manufacturers offering KBU-style 6 A, 100 V bridge rectifiers. Verify pinout compatibility and thermal resistance values. Note that alternative sources may use different case codes or terminal configurations despite similar electrical ratings.