1N4469US/TR

Single Zener Diodes Overview

The Microchip Technology 1N4469US/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 15.0 V and a maximum dynamic impedance of 9 Ohms at the test current of 17.0 mA. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 1.5 W of steady-state power. The device features a hermetically sealed voidless glass package (D-5A) and is qualified per MIL-PRF-19500/406.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction using internal metallurgical bonds for robust reliability.
• Military qualification per MIL-PRF-19500/406 across JAN, JANTX, JANTXV, and JANS levels.
• Inherently radiation hard as described in Microsemi MicroNote 050.

Single Zener Diodes Applications

• High-reliability applications where failure cannot be tolerated.
• Voltage regulation over broad operating current and temperature ranges.
• Circuit protection requiring non-sensitive ESD performance per MIL-STD-750 method 1020.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required tolerance level and RoHS compliance status. Confirm the presence of the tape and reel packaging option if automated assembly is required. Ensure the procurement documentation aligns with the military qualification level specified for the target application environment.

Single Zener Diodes Selection Notes

Select this component when a 15.0 V reference is needed in a surface mount form factor. Consider the 1.5 W power dissipation limit and thermal resistance characteristics for heat management. Evaluate the available tolerance options, including standard 5% or tighter 1% and 2% variants, against circuit precision requirements.

Single Zener Diodes Part Context

This part belongs to the 1N4460US through 1N4496US series of industry-recognized 1.5 watt Zener diodes. The series offers selections from 3.3 to 200 volts and serves as the surface mount equivalent of popular JEDEC registered axial-lead series. It utilizes an "A" (D-5A) MELF package design.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts within the 1N4460US–1N4496US series or commercial equivalents. Verify mechanical dimensions and pinout compatibility before substitution. Consult factory resources for availability of specific tolerance suffixes or RoHS compliant versions.