JANTX2N2323AU4

Overview

The JANTX2N2323AU4 is a military-grade NPN silicon small-signal bipolar junction transistor manufactured by Microsemi. It features a hermetically sealed TO-5 metal can package designed for high reliability in harsh environments. The device supports a maximum collector-emitter voltage of 40V and a continuous collector current of 100mA, with a power dissipation rating of 625mW. It operates within an extended temperature range from -65°C to +175°C. This component is classified as a quad-type small-signal BJT suitable for demanding aerospace and defense applications requiring strict environmental compliance.

Feature Summary

• Hermetically sealed TO-5 metal can construction ensures protection against moisture and contaminants
• Qualified for military specifications with extended thermal stability up to 175°C
• Optimized for low-power switching and amplification in space-constrained designs

Applications

• Aerospace avionics systems requiring radiation-hardened or high-reliability components
• Military communication equipment operating under extreme environmental conditions
• Defense electronics where long-term stability and hermetic sealing are mandatory

Procurement Notes

Verify the specific suffix AU4 against official Microsemi documentation to confirm pinout configuration and lot traceability requirements. Ensure that procurement channels provide valid military lot traceability records. Confirm that the delivered units match the exact part number designation to avoid compatibility issues with existing qualified assemblies. Request certification documents upon receipt to validate compliance with specified military standards.

Selection Notes

Select this component when a hermetically sealed NPN transistor is required for high-reliability circuits. Compare electrical characteristics such as VCEO and hFE against circuit requirements to ensure adequate margin. Consider the TO-5 package constraints for PCB layout and thermal management. Verify that the operating temperature range aligns with the system's environmental profile before finalizing the design choice.

Part Context

This part belongs to the JANTX series of military-grade transistors produced by Microsemi. The series is known for providing enhanced reliability compared to commercial equivalents. The AU4 suffix typically denotes a specific lead frame or testing configuration within the TO-5 package family. These devices are commonly used in legacy and modern defense systems where component failure is not an option.

Replacement Considerations

Direct replacements must match the TO-5 package and military qualification level. Check datasheets for equivalent parts like the 2N2323 variant to verify pinout compatibility. Ensure that any substitute meets the same VCEO and current ratings. Avoid commercial grade alternatives unless the application allows for reduced environmental tolerance.