JANS1N4121DUR-1

Single Zener Diodes Overview

The JANS1N4121DUR-1 is a Zener diode manufactured by Microchip Technology, designed for high-reliability applications. It features a nominal Zener voltage of 33V and operates within the DO-213AA (SOD-80) surface-mount package. The device is characterized as a round-end voltage regulator with a maximum dynamic impedance of 200 Ohms. It is constructed using silicon technology and supports a maximum operating temperature of 175°C. This component is specifically qualified for space environments, adhering to stringent radiation hardness standards required for aerospace systems.

Single Zener Diodes Feature Summary

• Space-qualified design ensuring reliability in harsh orbital conditions
• High thermal stability supporting operation up to 175°C junction temperature
• Surface-mount construction utilizing the compact DO-213AA package

Single Zener Diodes Applications

• Aerospace power regulation circuits
• Satellite electronic subsystems
• Military avionics voltage reference stages

Single Zener Diodes Procurement Notes

Verify that the specific suffix indicates full JANS qualification rather than standard commercial or industrial grades. Confirm radiation hardness assurance documentation is included with the shipment. Ensure the manufacturer source is authorized to prevent counterfeit components in critical space missions.

Single Zener Diodes Selection Notes

Select this component when radiation tolerance is mandatory for the application environment. Compare the 33V breakdown specification against circuit requirements to ensure proper regulation. Verify that the DO-213AA footprint matches the PCB layout constraints for the target assembly.

Single Zener Diodes Part Context

This part belongs to the 1N4121 series of Zener diodes produced by Microchip Technology. The JANS designation distinguishes it from commercial variants by certifying it for space flight. It shares the fundamental electrical characteristics of the base 1N4121 model while meeting additional environmental and reliability standards.

Single Zener Diodes Replacement Considerations

Direct substitutes include other JANS-qualified 33V Zener diodes in the DO-213AA package. Verify equivalent radiation hardness levels and dynamic impedance specifications before substitution.