APTDF500U40G

Overview

The APTDF500U40G is a single Fast Recovery Epitaxial Diode (FRED) manufactured by Microchip Technology. It features a 400 V repetitive peak reverse voltage and a forward voltage of 1.5 V. The device supports a continuous forward current of 500 A at a case temperature of 80°C. It utilizes silicon technology and is housed in an LP4 package designed for screw mounting. The component operates within a temperature range from -40°C to +100°C.

Feature Summary

• Fast recovery epitaxial diode construction for efficient switching
• High current handling capability with 500 A rating
• Robust LP4 package design for secure chassis installation

Applications

• Industrial motor drives
• Uninterruptible power supplies
• DC-DC converters

Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with Microchip Technology or authorized distributors before procurement. Confirm that the LP4 package dimensions and thermal characteristics align with your system's mechanical constraints and cooling requirements. Ensure proper handling procedures are followed due to the high-power nature of the component.

Selection Notes

Select this component when a single-diode configuration with high surge capacity is required. The 400 V rating suits low-voltage DC applications. Consider the 1.5 V forward voltage drop for efficiency calculations. Verify that the operating environment stays within the specified -40°C to +100°C range to ensure reliable performance.

Part Context

This part belongs to the Microchip APTDF series of power diode modules. These modules are engineered for high-reliability industrial applications requiring robust rectification. The LP4 package provides a standardized form factor for easy integration into existing power electronics designs.

Replacement Considerations

Consult official substitution lists for equivalent FRED diodes with matching voltage and current ratings. Verify pinout compatibility and thermal resistance values before replacing.