KBU3504-G

Overview

The KBU3504-G is a bridge rectifier diode manufactured by Comchip Technology. It features a single-phase full-bridge configuration designed for general-purpose power supply applications. The device utilizes a plastic molded package with an insulated base plate to facilitate thermal management and mounting. Key electrical characteristics include a maximum average forward rectified current of 3.0 Amperes and a repetitive peak reverse voltage rating of 400 Volts. The component operates within a standard junction temperature range, ensuring reliable performance in AC-to-DC conversion circuits.

Feature Summary

• Insulated base plate design for efficient heat dissipation and direct board mounting
• High surge current capability to withstand transient load conditions
• Plastic molding compound meets UL flammability classification standards

Applications

• AC to DC converter circuits in consumer electronics
• Power supply units for industrial control systems
• Battery charging equipment requiring isolated mounting

Procurement Notes

Verify the manufacturer marking on the component body matches the specified part number exactly. Confirm the package type includes an insulated base plate if direct PCB mounting is required. Request the official datasheet to validate electrical ratings against specific circuit requirements before finalizing procurement orders.

Selection Notes

Select this component when a 3A bridge rectifier with a 400V reverse voltage rating is needed. Ensure the application requires an insulated base for thermal or isolation purposes. Verify that the operating ambient temperature falls within the specified junction limits defined in the manufacturer's documentation.

Part Context

This component belongs to the KBU series of bridge rectifiers from Comchip Technology. The series offers various voltage ratings while maintaining a consistent 3.0A current capacity. The KBU3504-G specifically addresses applications requiring 400V blocking capability within a compact, thermally efficient package format.

Replacement Considerations

Compatible substitutes must match the 3.0A current rating and 400V peak reverse voltage. Verify physical dimensions and pinout compatibility. Insulated base variants are required if the original design relies on the thermal isolation properties of the KBU package.