JAN1N4579AUR-1

Single Zener Diodes Overview

The JAN1N4579AUR-1 is a temperature-compensated Zener reference diode manufactured by Microchip Technology. It operates in the surface-mount DO-213AA (MELF) package and provides a nominal Zener voltage of 6.4 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW at +50°C, featuring a derating factor of 4 mW/°C above this threshold. It maintains functionality across an extended operating and storage temperature range from -65°C to +175°C. Designed for low-current applications, it exhibits a maximum reverse leakage current of 2 µA at 3 V and a Zener impedance of 50 Ohms.

Single Zener Diodes Feature Summary

• Temperature compensated design ensures stable voltage reference performance across wide thermal variations
• Hermetically sealed glass MELF package provides environmental protection and reliability
• Metallurgically bonded double plug construction enhances structural integrity
• Optimized for low-current operation within the specified milliampere range

Single Zener Diodes Applications

• Precision voltage reference circuits requiring high stability
• Military and aerospace electronic systems
• High-reliability industrial instrumentation
• Temperature-compensated regulator designs

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized Microchip channels due to military specifications. Confirm package orientation and marking codes match datasheet requirements. Ensure handling procedures comply with hermetic seal preservation standards. Validate electrical parameters against MIL-PRF-19500/452 criteria prior to integration into critical systems.

Single Zener Diodes Selection Notes

Select this component when precise voltage referencing is required under extreme thermal conditions. The DO-213AA package suits automated surface-mount assembly processes. Consider the 500 mW power rating and derating curve for thermal management planning. Verify that the 6.4 V output aligns with circuit biasing needs and that low leakage characteristics meet system isolation requirements.

Single Zener Diodes Part Context

This part belongs to the JAN series of temperature-compensated Zener diodes compliant with MIL-PRF-19500/452. It utilizes leadless glass encapsulation suitable for harsh environments. The series covers various voltage options within a low-current operational window, providing consistent performance for defense and space-grade electronics where long-term stability is mandatory.

Single Zener Diodes Replacement Considerations

Substitutes must match the DO-213AA footprint and 6.4 V nominal voltage. Verify equivalent temperature compensation coefficients and hermetic sealing capabilities. Ensure replacement parts meet or exceed the -65°C to +175°C operating range and 500 mW power dissipation limits without altering circuit biasing conditions.