KBPF406G B0G

Overview

The KBPF406G is a quad bridge rectifier manufactured by Taiwan Semiconductor Corporation, designed for high-efficiency AC/DC conversion. It features a glass-passivated junction and operates with a repetitive peak reverse voltage of 800 V and a forward current rating of 4 A. The device supports a surge peak forward current of 120 A and functions within a junction temperature range of -55 °C to +150 °C. Packaged in the KBPF format, it utilizes molded plastic construction compliant with UL 94V-0 standards. Electrical characteristics include a typical forward voltage of 1.1 V at 2 A and a maximum reverse current of 200 µA at 125 °C.

Feature Summary

• Glass passivated chip junctions provide reliable performance and improved reverse leakage characteristics.
• Molded plastic technique ensures low cost construction with high mechanical strength and UL 94V-0 flammability rating.
• High surge current capability allows robust operation during transient load conditions.

Applications

• General purpose full wave rectification in AC/DC power supplies.
• Space-constrained applications utilizing printed circuit board mounting.
• Switching mode power supply (SMPS) input stages.

Procurement Notes

Verify the specific ordering code C8G and tube packing quantity of 35 units when sourcing components. Confirm compliance with RoHS Directive 2011/65/EU and WEEE 2002/96/EC requirements. Ensure the supplier provides documentation verifying halogen-free status according to IEC 61249-2-21 definitions prior to final procurement authorization.

Selection Notes

Select the KBPF406G specifically for circuits requiring an 800 V repetitive peak reverse voltage rating. Evaluate thermal management needs based on the junction-to-ambient resistance of 56 °C/W for PCB-mounted configurations. Consider the 4 A continuous forward current limit and 120 A surge capacity when sizing the component for the intended load profile.

Part Context

This component belongs to the KBPF404G through KBPF407G series from Taiwan Semiconductor. The series shares identical physical dimensions, pinout configurations, and electrical ratings except for the maximum repetitive peak reverse voltage. The KBPF406G serves as the 800 V variant within this standardized bridge rectifier lineup.

Replacement Considerations

Direct substitutes within the same series include the KBPF404G (400 V), KBPF405G (600 V), and KBPF407G (1000 V). Verify that the alternative part number meets or exceeds the required 800 V reverse voltage specification for the target application circuit.