APTDX450KK120D16AG

Overview

The APTDX450KK120D16AG is a fast-recovery diode module manufactured by Microchip Technology. It features a common cathode configuration with a peak repetitive reverse voltage of 1200 V and a DC forward current rating of 700 A at 25 °C case temperature. The device utilizes an Aluminum Nitride substrate for thermal management and includes M6 power connectors. Key electrical parameters include a maximum forward voltage of 2 V at 450 A and 25 °C, and a junction-to-case thermal resistance of 0.116 °C/W.

Feature Summary

• Fast-recovery times with soft-recovery characteristics
• High-blocking voltage capability
• Low-leakage current performance
• Aluminum Nitride substrate for improved thermal dissipation

Applications

• Uninterruptible Power Supply (UPS)
• Induction heating systems
• Welding equipment
• High-speed rectifiers

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package and terminal specifications. Ensure proper electrostatic discharge handling procedures are followed during installation. Confirm that mounting torque requirements for M6 terminals fall within the specified range of 3 to 5 N.m to maintain mechanical integrity and thermal contact.

Selection Notes

Select this component for high-current applications requiring fast switching speeds and low noise. Evaluate the thermal resistance and operating temperature range to ensure compatibility with the system's cooling infrastructure. Consider the isolation voltage rating when designing circuits requiring direct heatsink mounting.

Part Context

This device belongs to the APTDX series of fast diode modules from Microchip Technology. It is designed for high-power industrial applications where efficiency and reliability are critical. The module integrates multiple diodes in a single isolated package to simplify assembly and improve thermal performance compared to discrete solutions.

Replacement Considerations

No verified public substitute part numbers are available in the provided datasheet.

FAQ

What is the recommended junction temperature under switching conditions?

The recommended junction temperature under switching conditions ranges from -40 °C to TJmax - 25 °C.

How does the forward voltage change with temperature?

The forward voltage decreases as the junction temperature increases, dropping from a typical 1.75 V at 25 °C to 1.52 V at 175 °C at 450 A.

What is the RMS isolation voltage rating?

The RMS isolation voltage between any terminal and the case is rated at 4000 V for one minute at 50/60 Hz.