JANS1N4993US

Single Zener Diodes Overview

The JANS1N4993US is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 300 V with a test current of 4 mA and a maximum reverse leakage current of 2 uA. The device operates within a temperature range of -65 C to +175 C and is housed in the D-5B-2 package. It has a power dissipation rating of 0.3 W and a Zener impedance of 20 Ohms.

Single Zener Diodes Feature Summary

• High-voltage regulation capability suitable for demanding electronic circuits
• Extended thermal stability for operation in extreme environments
• Surface-mount construction for automated assembly integration

Single Zener Diodes Applications

• Military aerospace systems requiring radiation-hardened components
• Spacecraft power supply regulation
• High-reliability industrial control electronics

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized Microchip channels due to restricted distribution status. Confirm specific manufacturing lot details and radiation testing documentation are included with the shipment. Ensure storage conditions comply with manufacturer guidelines to maintain performance integrity before installation.

Single Zener Diodes Selection Notes

Select this component when high breakdown voltage and wide operating temperature ranges are required. Verify that the surface-mount package fits the available board space. Ensure the circuit design accounts for the specific power dissipation limits under expected load conditions.

Single Zener Diodes Part Context

This part belongs to the JAN series of Zener diodes produced by Microchip Technology. These components are engineered for high-reliability applications where standard commercial parts may not suffice. The series offers robust performance characteristics tailored for specialized industrial and defense sectors.

Single Zener Diodes Replacement Considerations

Consult official Microchip documentation for verified substitute part numbers. Cross-reference electrical parameters such as Zener voltage and package dimensions carefully. Do not assume compatibility with generic equivalents without validating against the original datasheet specifications.