AUIRGR4045D

Overview

The AUIRGR4045D is a Schottky rectifier diode manufactured by International Rectifier. It features a silicon construction with a maximum average forward rectified current of 40A and a repetitive peak reverse voltage rating of 45V. The device utilizes a TO-3P package with three through-hole terminals, designed for general-purpose applications. Key electrical parameters include a non-repetitive peak forward surge current capability of 300A. The component is configured as two series-connected elements in a center-tap arrangement, suitable for high-current power conversion tasks requiring robust thermal performance and low forward voltage drop characteristics typical of Schottky technology.

Feature Summary

• Schottky barrier technology for fast switching and low forward voltage drop
• High current handling capability with 40A average forward rectified current
• Robust surge current tolerance up to 300A non-repetitive peak
• Center-tap configuration with two series-connected elements

Applications

• General purpose rectification in power supplies
• Automotive electronics requiring high reliability
• Industrial power conversion systems

Procurement Notes

Verify the manufacturer designation carefully, as International Rectifier is now part of Infineon Technologies. Confirm the specific datasheet version and any ordering suffixes that may indicate packaging or temperature grade variations. Ensure the component meets the required automotive or industrial qualification standards for your specific application environment before procurement.

Selection Notes

Select this component when a 40A current rating and 45V reverse voltage are required in a TO-3P through-hole package. Consider the center-tap configuration if designing bridge or full-wave rectifier circuits. Evaluate thermal management requirements given the high current capacity and ensure the PCB layout supports the TO-3P mounting style for adequate heat dissipation.

Part Context

This component belongs to the family of high-power Schottky rectifiers designed for demanding power electronic applications. International Rectifier specialized in such discrete semiconductors before its acquisition by Infineon. The TO-3P package provides a balance of high current capability and mechanical stability, making it suitable for chassis-mounted installations in industrial and automotive contexts.

Replacement Considerations

Direct cross-reference should be sought among Infineon's current portfolio of TO-3P Schottky rectifiers with matching 40A/45V ratings. Verify pinout compatibility and thermal resistance specifications. Alternative packages like TO-247 may require adapter considerations. Consult official substitution guides for updated part numbers reflecting the transition from IR to Infineon branding.