JAN1N4120D-1/TR

Single Zener Diodes Overview

The JAN1N4120D-1/TR is a 30 V Zener voltage regulator diode with a 1% tolerance, rated for 500 mW power dissipation. It utilizes an internal metallurgical bond within a hermetically sealed axial-lead glass DO-35 (DO-204AH) package. Qualified per MIL-PRF-19500/435 to the JAN level, it operates across a temperature range of -65 °C to +175 °C. The device features a test current of 250 µA and a maximum dynamic impedance of 0.01 Ω.

Single Zener Diodes Feature Summary

• Internal metallurgical bond construction for enhanced reliability
• Hermetically sealed glass axial-lead package
• Qualified to MIL-PRF-19500/435 standards
• Inherently radiation hard

Single Zener Diodes Applications

• High-reliability voltage regulation
• Military and aerospace circuits
• Harsh environment protection

Single Zener Diodes Procurement Notes

Verify the specific suffixes against official Microchip documentation to confirm qualification level and packaging format. Ensure the ordering code matches the required JAN military specification and tape-and-reel configuration. Cross-reference datasheet T4-LDS-0245-2 for complete electrical limits and mechanical dimensions before procurement.

Single Zener Diodes Selection Notes

Select this component when a 30 V reference with tight 1% tolerance is required in high-reliability applications. The metallurgical bond provides superior stability compared to non-bonded types. Verify that the 500 mW power rating and thermal resistance meet the system's derating requirements at the intended operating temperature.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mW metallurgically bonded glass Zener diodes. These devices are JEDEC registered and available in various tolerance grades and qualification levels including JANTX and JANS. The JAN designation indicates compliance with specific military reliability standards.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N4120D-1 without the TR suffix for bulk packaging, or commercial versions like 1N4120-1 if military qualification is not required. Surface mount equivalents such as JAN1N4120UR-1 are available in the DO-213AA package.