APTDF400AK20G

Overview

The APTDF400AK20G is a silicon FRED diode array manufactured by Microchip Technology, designed for high-power industrial applications. It features a double series configuration with two diodes per phase leg. The device supports a maximum repetitive reverse voltage of 200 V and handles an average forward current of 400 A at a case temperature of 80°C. Key electrical parameters include a typical forward voltage of 1 V and a reverse recovery time of 60 ns. It utilizes the SP6C package within an LP4 chassis mount footprint.

Feature Summary

• Double series semiconductor structure for phase leg configurations
• Fast Recovery Epitaxial Diode (FRED) technology for efficient switching
• Chassis mount design compatible with LP4 mechanical standards

Applications

• Industrial motor drives
• High-frequency power conversion systems
• Inverter bridge circuits

Procurement Notes

Verify the specific suffix 'G' indicates lead-free compliance when sourcing. Confirm that the SP6C package designation aligns with your thermal management requirements. Ensure the 200V rating meets your circuit's peak inverse voltage demands. Cross-reference the LP4 mounting hole pattern with your existing hardware infrastructure to guarantee physical compatibility during installation.

Selection Notes

Select this component for applications requiring low reverse recovery charge and high surge capability. The 400A current rating suits heavy-duty loads where thermal dissipation is managed via chassis mounting. Consider the 60ns recovery speed for high-frequency operation to minimize switching losses. Evaluate the 1V forward drop against system efficiency targets compared to alternative silicon or wide-bandgap options.

Part Context

This part belongs to the APTDF400 series from Microchip Technology, which specializes in high-current diode arrays. The series is engineered for robust performance in demanding power electronics environments. The APTDF400AK20G specifically offers a lower voltage rating compared to other variants in the family, optimizing it for specific bus voltage levels while maintaining high current capacity.

Replacement Considerations

Direct substitutes may include other APTDF400 series variants with different voltage ratings, such as the APTDF400AK100G, provided the system voltage allows. Verify pinout and mechanical dimensions match before swapping. Alternative manufacturers offering similar FRED diode arrays in LP4 packages should be evaluated for equivalent electrical characteristics and thermal performance.