1N6766

Overview

The Microchip Technology 1N6766 is a high-reliability ultrafast power rectifier designed for demanding environments. It features a 400V reverse voltage rating and supports an average forward current of 12A. The device utilizes a TO-254AA (TO-254) through-hole package, ensuring robust mechanical stability. Qualified under MIL-PRF-19500/642 standards, it operates within a junction temperature range of -55°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 10µA at rated voltage and a typical forward voltage drop of 1.05V at full load.

Feature Summary

• Military-grade qualification compliant with MIL-PRF-19500/642 specifications
• Ultrafast recovery performance suitable for high-frequency switching applications
• Wide operating temperature range extending from -55°C to +175°C

Applications

• High-reliability aerospace and defense power systems
• Industrial power supplies requiring extended thermal endurance
• Military-grade rectification circuits in harsh environments

Procurement Notes

Verify the specific ordering suffix against the official Microchip datasheet to confirm exact electrical tolerances and testing levels. Confirm that the component meets the required MIL-PRF-19500/642 qualification level for your application. Request the latest Product Change Notification (PCN) documentation to ensure compliance with any recent manufacturing updates or material changes.

Selection Notes

Select this component when military reliability and wide temperature operation are mandatory. Ensure the circuit design accommodates the TO-254AA package dimensions and thermal requirements. Verify that the 400V reverse voltage rating provides sufficient margin for the peak inverse voltage in the target application. Consider the ultrafast recovery time if used in high-frequency switching topologies.

Part Context

This component belongs to the Microchip Military Diode series, specifically engineered for critical infrastructure where failure is not an option. It shares the physical footprint and general electrical profile with other devices in the 1N67xx family but is distinguished by its specific voltage rating and ultrafast recovery characteristics defined by the MIL-PRF-19500/642 standard.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with the official Microchip replacement guide or contact the manufacturer directly for qualified alternatives.