JAN1N6346

Single Zener Diodes Overview

The JAN1N6346 is a military-qualified Zener voltage regulator diode from the 1N6309 through 1N6355 series, manufactured by Microchip Technology. It features a hermetically sealed voidless-glass package with internal metallurgical bonds and operates within a junction temperature range of -65°C to +175°C. The device provides an 82V nominal Zener voltage at a test current of 1.5mA, with a maximum dynamic impedance of 220 ohms and a steady-state power dissipation rating of 0.5W.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction with internal metallurgical bonding for high reliability
• Qualified per MIL-PRF-19500/533 standards for demanding environments
• Inherently radiation hard design suitable for space applications
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020

Single Zener Diodes Applications

• High-reliability aerospace systems where failure cannot be tolerated
• Radiation-hardened electronic circuits
• Military-grade voltage regulation in extreme temperature environments
• Precision reference voltage sources requiring tight tolerance stability

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level (JAN, JANTX, JANTXV, or JANS). Confirm RoHS compliance status if applicable, as commercial versions may differ from military specifications. Ensure lead finish requirements align with assembly processes, noting that tin/lead options are standard while matte/tin is available for commercial grades only.

Single Zener Diodes Selection Notes

Select this component when a robust, hermetically sealed Zener diode is required for critical applications. Consider the 82V breakdown voltage and 0.5W power dissipation limits against circuit demands. Evaluate thermal resistance values for derating calculations based on ambient conditions. Verify that the axial-lead DO-35 package fits the mechanical constraints of the target PCB layout.

Single Zener Diodes Part Context

This part belongs to the industry-standard 1N6309 through 1N6355 series of 0.5-watt Zener voltage regulators. The series offers extensive selections ranging from 2.4V to 200V with various tolerance options. It serves as a surface-mount equivalent to older JEDEC registered types but utilizes advanced voidless-glass technology for superior environmental sealing and long-term stability in harsh operating conditions.

Single Zener Diodes Replacement Considerations

Direct substitutes include other military-qualified parts from the same 1N63xx series family. Cross-reference with generic 1N6346 equivalents only if they meet MIL-PRF-19500/533 qualification standards. Verify that replacement packages maintain identical dimensional tolerances and metallurgical bond categories to ensure mechanical and electrical compatibility.