1N4460

Single Zener Diodes Overview

The Microchip Technology 1N4460 is a 1.5-watt Zener voltage regulator diode with a nominal breakdown voltage of 6.2V. It utilizes a voidless hermetically sealed glass package and is qualified to MIL-PRF-19500/406 for JAN, JANTX, JANTXV, and JANS reliability levels. The device operates within a junction temperature range of -65°C to +175°C and features flexible axial-lead mounting terminals.

Single Zener Diodes Feature Summary

• Hermetically sealed void-less glass construction using internal metallurgical bonds
• Triple-layer passivation for robust protection
• Inherently radiation hard design
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• High-reliability military applications where failure cannot be tolerated
• Voltage regulation over broad operating current and temperature ranges
• Circuits requiring inherent radiation hardness

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix to confirm the required reliability level (JAN, JANTX, JANTXV, or JANS) and tolerance percentage. Confirm RoHS compliance status, as commercial versions are available in RoHS-compliant matte tin while military grades typically use tin/lead terminations. Ensure the package type matches the intended board layout requirements.

Single Zener Diodes Selection Notes

Select this component when a high-power 1.5W Zener diode with strict environmental resilience is required. The 1N4460 provides a stable 6.2V reference point. Consider the thermal impedance characteristics for transient conditions and ensure the lead length meets the specified .375 inch requirement for accurate steady-state power dissipation ratings.

Single Zener Diodes Part Context

This part belongs to the industry-recognized 1N4460 through 1N4496 series of Zener voltage regulators. These devices are designed for demanding environments and offer extensive voltage selections from 3.3V to 200V. The series supports both standard 5% tolerance and tighter 1% or 2% tolerance options depending on the specific suffix.

Single Zener Diodes Replacement Considerations

Direct replacements include other manufacturers' 1N4460 equivalents that meet MIL-PRF-19500/406 specifications. Verify that any substitute maintains the same 1.5W power rating, hermetic sealing capability, and axial lead dimensions to ensure mechanical and electrical compatibility.