JANTX1N979DUR-1

Single Zener Diodes Overview

The JANTX1N979DUR-1 is a silicon unidirectional voltage regulator diode manufactured by Microchip Technology. It operates within the DO-213AA (MELF) surface-mount package and provides a nominal Zener voltage of 56 V with a maximum power dissipation of 0.5 W. The device features an isolated case connection and round, long-form glass encapsulation. Designed for high-reliability applications, it meets military qualification standards including MIL-PRF-19500/117.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF construction with internal metallurgical bonding
• Military-grade reliability compliant with MIL-PRF-19500/117 specifications
• Surface-mount design in compact DO-213AA form factor

Single Zener Diodes Applications

• High-reliability aerospace electronic circuits
• Defense system voltage regulation
• Harsh environment power supply protection

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required military qualification level and tolerance suffix. Confirm package orientation and polarity markings during inspection. Ensure storage conditions maintain hermetic integrity prior to installation. Cross-reference datasheet electrical limits against circuit requirements before procurement.

Single Zener Diodes Selection Notes

Select this component when a ruggedized, surface-mount Zener diode is required for critical systems. The DO-213AA package offers space efficiency compared to axial leads. Verify thermal management capabilities align with the 0.5 W power rating. Consider environmental sealing requirements if operating in extreme humidity or pressure conditions.

Single Zener Diodes Part Context

This device belongs to the 1N957BUR-1 through 1N992BUR-1 series of 0.5 W Zener regulators. The series spans voltages from 6.8 V to 200 V in various tolerance grades. The JANTX designation indicates enhanced testing beyond standard JAN levels, ensuring higher quality for demanding operational environments.