KBU403G T0

Overview

The KBU403G T0 is a bridge rectifier diode manufactured by Taiwan Semiconductor Corporation. It features a silicon construction with glass passivation for the junctions. The device is rated for a maximum average forward rectified current of 4 A and a repetitive peak reverse voltage of 200 V. It utilizes a single in-line (SIL) package configuration, specifically the KBU-4 case style, which facilitates through-hole mounting on printed circuit boards.

Feature Summary

• Glass passivated junctions provide high reliability and stability under varying thermal conditions.
• High surge current capability allows the component to withstand transient overloads during power-up or fault conditions.
• Low forward voltage drop contributes to improved system efficiency and reduced heat generation.

Applications

• AC to DC conversion circuits in general-purpose power supplies.
• Battery charging systems requiring robust rectification.
• DC power output stages in industrial control equipment.

Procurement Notes

Verify the specific suffix 'T0' against official manufacturer documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact electrical ratings required for the target design. Cross-reference with authorized distributors to confirm current availability and authenticity before procurement.

Selection Notes

Select this component when a 4 A current rating and 200 V blocking voltage are sufficient for the application. Consider the physical dimensions of the SIL package for PCB layout constraints. Evaluate thermal management requirements based on the expected ambient temperature and forward current load.

Part Context

This component belongs to the KBU series of bridge rectifiers from Taiwan Semiconductor. The series offers various voltage ratings and current capacities within the same mechanical footprint, allowing for design flexibility. The KBU403G variant specifically addresses applications needing moderate current handling at lower voltage levels compared to higher-rated siblings in the lineup.

Replacement Considerations

Compatible substitutes include equivalent 4 A, 200 V bridge rectifiers in the KBU-4 package from other manufacturers such as Littelfuse or Vishay. Verify pinout compatibility and thermal characteristics before substitution.