APTDF400AA170G

Overview

The APTDF400AA170G is a high-power diode module manufactured by Microchip Technology. It features a dual series configuration within an LP4 screw-mount package. The device is rated for a maximum repetitive reverse voltage of 1700 V and supports an average forward current of 480 A per diode. Key electrical characteristics include a forward voltage of 2.5 V at 400 A and a reverse recovery time of 572 ns. The component operates reliably across a temperature range from -40°C to +175°C, utilizing silicon technology for robust performance in demanding power conversion environments.

Feature Summary

• Dual series diode configuration integrated into a single compact module
• High thermal stability enabling operation up to 175°C junction temperature
• Fast recovery characteristics optimized for high-frequency switching applications
• Robust screw-mount construction ensuring secure mechanical attachment

Applications

• Industrial motor drives and variable frequency drives
• High-voltage DC transmission systems
• Uninterruptible power supply (UPS) inverters
• Induction heating equipment

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm exact electrical tolerances and packaging variations. Ensure the procurement channel provides valid traceability and authenticity guarantees. Cross-reference the latest datasheet revision to confirm compliance with current environmental standards such as RoHS. Confirm that the ordered quantity matches the manufacturer's standard packing units to avoid handling discrepancies during assembly.

Selection Notes

Select this component when designing circuits requiring high current capacity combined with high voltage blocking capabilities. The LP4 package offers a balance between thermal dissipation and board space efficiency. Consider the 572 ns reverse recovery time when evaluating switching losses in high-frequency topologies. Ensure the cooling solution can maintain the junction temperature within the specified 175°C limit under peak load conditions to guarantee long-term reliability.

Part Context

This module belongs to the APTDF series of fast recovery diodes from Microchip Technology. The series is designed for use in high-power industrial applications where reliability and efficiency are critical. The LP4 package is a standard form factor widely used in medium to high-power converter designs. This specific part represents a high-current variant within the 1700 V voltage class family.

Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Ensure any replacement maintains identical pinout, thermal resistance, and electrical ratings. Verify that alternative modules support the same mounting requirements and operating temperature ranges.