JAN1N4946

Single Diodes Overview

The JAN1N4946 is a military-grade fast recovery rectifier manufactured by Microchip Technology. It features a maximum DC reverse voltage of 600 V and an average forward current rating of 1 A. The device utilizes an axial through-hole package with a junction temperature range spanning from -65°C to +175°C. Key electrical characteristics include a reverse recovery time of 250 ns, a forward voltage drop of 1.3 V at 1 A, and a maximum reverse leakage current of 1 µA at 600 V. The component complies with MIL-PRF-19500/359 specifications.

Single Diodes Feature Summary

• Military-grade construction compliant with MIL-PRF-19500/359 standards
• Fast recovery performance with a 250 ns reverse recovery time
• High thermal stability supporting operation up to 175°C junction temperature

Single Diodes Applications

• High-reliability aerospace power supply circuits
• Military electronic equipment requiring ruggedized rectification
• Harsh environment industrial control systems

Single Diodes Procurement Notes

Verify that the specific order includes the JAN prefix to ensure compliance with MIL-PRF-19500/359 military specifications. Confirm RoHS status as non-compliant for this variant. Validate packaging details against the latest Product Change Notification regarding bag label changes effective June 30, 2025. Ensure assembly site verification aligns with current manufacturing notifications.

Single Diodes Selection Notes

Select this component when military qualification and high-temperature operation are mandatory requirements. The 600 V reverse voltage rating suits medium-voltage rectification tasks. Compare the 250 ns recovery time against standard recovery alternatives if switching speed is critical. Verify that the axial leaded package fits the available board space and mounting constraints.

Single Diodes Part Context

This part belongs to the 1N494x series of fast recovery rectifiers produced by Microchip Technology. It shares functional similarities with commercial variants like the 1N4946 but differs in rigorous testing and material specifications required for defense applications. The series provides reliable rectification for demanding electronic environments.

Single Diodes Replacement Considerations

The 1N4946-1 serves as a parameter-equivalent commercial alternative. Other potential substitutes include the RL105F from SMC Diode Solutions. Verify pinout compatibility and thermal ratings before substitution.