1N4486

Single Zener Diodes Overview

The Microchip Technology 1N4486 is a military-qualified Zener voltage regulator diode designed for high-reliability applications. It features a hermetically sealed void-less glass package with an internal metallurgical bond, ensuring robust construction. The device operates within a junction and storage temperature range of -65°C to +175°C and provides a nominal Zener voltage of 75V at a test current of 3.3mA. It supports a steady-state power dissipation of 1.5W and offers standard 5% tolerance.

Single Zener Diodes Feature Summary

• Hermetically sealed void-less glass construction with internal metallurgical bonds
• Military qualification per MIL-PRF-19500/406
• Inherently radiation hard design
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• High-reliability aerospace systems
• Defense electronics requiring failure-free operation
• Voltage regulation in extreme temperature environments

Single Zener Diodes Procurement Notes

Verify the specific reliability level (JAN, JANTX, JANTXV, or JANS) required for your application, as these levels dictate the manufacturing and testing standards. Confirm RoHS compliance status if environmental regulations apply, noting that compliant versions are typically commercial grade only. Ensure the ordering suffix matches the desired tolerance and packaging configuration before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 75V Zener reference is needed in harsh environments. The 1.5W power rating allows for significant current handling compared to lower-power series. Consider the DO-41 axial lead package for through-hole mounting. Verify thermal derating requirements based on ambient temperature conditions to ensure the 1.5W limit is not exceeded during continuous operation.

Single Zener Diodes Part Context

This part belongs to the 1N4460–1N4496 series of 1.5-watt glass Zener diodes. The series covers a wide voltage range from 3.3V to 200V. The 1N4486 specifically targets the higher voltage end of the spectrum. These diodes are industry-recognized for their durability and are suitable for critical circuits where standard commercial components would fail prematurely.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 75V Zener voltage, 1.5W power rating, and DO-41 package. Military equivalents should be verified against MIL-PRF-19500/406 specifications. Commercial grade 1N4486 variants may lack the hermetic sealing and radiation hardness required for defense applications.