1N4469DUS/TR

Single Zener Diodes Overview

The Microchip Technology 1N4469DUS/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 15.0 V and a tight tolerance of ±1%. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 1.5 W at 25°C ambient. The device features a voidless hermetically sealed glass MELF package (A, SQ-MELF) with internal metallurgical bonds. Electrical characteristics include a maximum dynamic impedance of 600 Ohms at the test current of 9 mA and a maximum reverse leakage current of 0.05 µA at 12.8 V.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction using internal metallurgical bonds for robustness.
• Military qualification available per MIL-PRF-19500/406 standards.
• Inherently radiation hard design suitable for high-reliability environments.
• Non-sensitive to electrostatic discharge as verified by MIL-STD-750 method 1020.

Single Zener Diodes Applications

• High-reliability voltage regulation where failure is not tolerated.
• Radiation-hardened electronic systems.
• Broad operating current and temperature range stabilization.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level and tolerance. Confirm RoHS compliance status if applicable, noting that commercial grade versions may differ from military qualified levels. Ensure the package type aligns with the intended surface mount footprint requirements.

Single Zener Diodes Selection Notes

Select this component when a precise 15.0 V reference with ±1% accuracy is required in a ruggedized surface mount form factor. Consider the thermal resistance and power derating curves for high-temperature operation scenarios. Verify compatibility with existing PCB pad layouts designed for the A, SQ-MELF case style.

Single Zener Diodes Part Context

This part belongs to the 1N4460US through 1N4496US series of 1.5 Watt Zener diodes. These devices are industry-recognized regulators offering selections from 3.3 to 200 volts. They serve as surface mount equivalents to popular JEDEC registered axial-lead series, providing hermetic sealing for demanding applications.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 15V nominal voltage, ±1% tolerance, and 1.5W power rating. Verify equivalent MIL-PRF-19500/406 qualification and identical MELF package dimensions for mechanical interchangeability.

Single Zener Diodes FAQ

What is the maximum continuous forward voltage?

The maximum forward voltage is 1.5 V at a forward current of 1.0 A.

Is the device sensitive to electrostatic discharge?

No, the device is non-sensitive to ESD per MIL-STD-750 method 1020.