JAN1N4977/TR

Single Zener Diodes Overview

The JAN1N4977/TR is a military-grade silicon Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 62 V with a tolerance of ±5% and a maximum power dissipation of 5 W. The device operates in an axial through-hole package (E) with a test current of 20 mA and a Zener impedance of 42 Ohms. It supports a wide operating temperature range from -65°C to +175°C, ensuring reliability in harsh environments.

Single Zener Diodes Feature Summary

• Military-grade qualification compliant with MIL-PRF-19500/356 standards for high-reliability applications
• Wide thermal stability enabling operation across extreme temperatures from -65°C to +175°C
• High power handling capability with 5 W dissipation rating in an axial leaded package

Single Zener Diodes Applications

• Voltage regulation in aerospace and defense electronic systems
• Overvoltage protection circuits requiring high reliability
• Reference voltage sources in military-grade instrumentation

Single Zener Diodes Procurement Notes

Verify the specific suffix /TR indicates tape-and-reel packaging configuration against official Microchip documentation before procurement. Confirm that the JAN prefix denotes military-grade compliance and that the component meets all required environmental and quality standards for the intended application. Ensure compatibility with existing assembly processes regarding axial leaded components.

Single Zener Diodes Selection Notes

Select this component when military-grade reliability and wide temperature operation are mandatory. The 62 V Zener voltage and 5 W power rating suit high-power regulation needs. Compare against standard commercial variants if military certification is not required, as the JAN series offers enhanced screening and performance consistency for critical systems.

Single Zener Diodes Part Context

The JAN1N4977/TR belongs to the JAN series of Zener diodes produced by Microchip Technology, formerly Microsemi. This series is designed for demanding environments where standard commercial components may fail. The part is part of a broader family of regulated diodes offering various voltage ratings and power levels for specialized industrial and defense uses.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.