APTDF400AK170G

Overview

The APTDF400AK170G is a standard recovery diode array manufactured by Microchip Technology. It features one pair of series-connected diodes housed in an LP4 base-mount package with an SP6 supplier device enclosure. The component supports a maximum DC reverse voltage (Vr) of 1700 V and provides an average rectified current (Io) of 480 A per diode. The forward voltage (Vf) is specified as 2.5 V at 400 A, while the reverse leakage current is 750 µA at 1700 V. The device exhibits a reverse recovery time (trr) of 572 ns, classifying it as a standard speed device with trr greater than 500 ns.

Feature Summary

• Configured as a single pair of series-connected standard recovery diodes for high-voltage applications.
• Engineered for robust performance with a 1700 V maximum DC reverse voltage rating.
• Designed for high-current handling capabilities with a 480 A average rectified current per diode.
• Utilizes an LP4 base-mount package structure to facilitate efficient thermal management and mechanical stability.

Applications

• High-voltage industrial power conversion systems
• Medium to high-power motor drive inverters
• Uninterruptible power supply (UPS) circuits
• Industrial welding equipment power stages

Procurement Notes

Verify the specific suffix 'AK170G' against official Microchip documentation to confirm the 1700 V rating and series configuration. Ensure the LP4/SP6 package dimensions match the target heatsink interface. Confirm RoHS3 compliance status through the manufacturer's latest environmental declaration before finalizing procurement specifications.

Selection Notes

Select this component when designing circuits requiring high blocking voltage combined with substantial continuous current capacity. The standard recovery characteristic makes it suitable for lower-frequency switching applications where fast recovery is not critical. Evaluate thermal resistance requirements carefully due to the high forward current ratings inherent to the LP4 module form factor.

Part Context

This part belongs to the APTDF400 family of high-power discrete semiconductors produced by Microchip Technology. The family includes variants with different voltage ratings, such as the APTDF400AK100G (1000 V) and APTDF400AA120G (1200 V). These modules are designed to replace older generation discrete diode assemblies in heavy-duty power electronics, offering improved reliability and simplified mounting solutions.

Replacement Considerations

Direct substitutes within the same voltage class include other Microchip LP4 modules with comparable current ratings. Verify that any replacement maintains the 1700 V reverse voltage requirement and similar reverse recovery characteristics to ensure circuit compatibility without redesigning the snubber networks.