JANTXV1N985BUR-1

Single Zener Diodes Overview

The JANTXV1N985BUR-1 is a silicon Zener diode designed for high-reliability applications, manufactured by Microchip Technology. It operates within the MIL-PRF-19500/117 series and features a hermetically sealed glass DO-35 axial leaded package. The device provides a nominal Zener voltage of 100 V with a tight tolerance of ±2%, indicated by the 'C' suffix in the base part number 1N985C. It handles a maximum power dissipation of 500 mW at 25°C ambient temperature. Key electrical characteristics include a maximum dynamic impedance of 500 Ohms and a reverse leakage current of 500 nA at 76 V. The component supports an operating and storage temperature range from -55°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-35 axial-leaded package ensuring environmental protection
• Tight voltage tolerance of ±2% for precise regulation requirements
• Extended thermal stability supporting operation up to +175°C
• Compliance with MIL-PRF-19500/117 military reliability standards

Single Zener Diodes Applications

• Military aerospace electronic systems requiring radiation-hardened or high-reliability components
• Precision voltage reference circuits in defense instrumentation
• Overvoltage protection stages in harsh environment communication equipment
• Power supply regulation modules for space-grade satellite subsystems

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required tolerance and package variant, as standard commercial equivalents may lack hermetic sealing. Confirm compliance with MIL-PRF-19500/117 specifications during procurement. Ensure handling procedures account for the glass axial leaded construction to prevent mechanical stress. Cross-reference the manufacturer's latest datasheet for any updates on material declarations or qualification status before finalizing purchase orders.

Single Zener Diodes Selection Notes

Select this component when strict voltage accuracy and long-term reliability are critical. The ±2% tolerance distinguishes it from standard 5% variants suitable for general-purpose use. Consider the hermetic seal requirement for environments where moisture or contamination could compromise performance. Evaluate the thermal resistance and power derating curves if operating near the upper temperature limits. Ensure the DO-35 package dimensions fit the available board space and mounting constraints.

Single Zener Diodes Part Context

This device belongs to the 1N985B through 1N986B series of silicon Zener diodes produced under military specifications. The JAN prefix indicates initial qualification, while JANTX denotes improved screening levels. The V suffix typically signifies further enhanced testing or specific lot controls per the manufacturer's military grade standards. These diodes are engineered for consistent performance in demanding industrial, automotive, and defense sectors where failure is not an option.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers: JANTX1N985C-1, JANTXV1N985B-1.