1N4469

Single Zener Diodes Overview

The Microchip Technology 1N4469 is a military-qualified, hermetically sealed glass Zener diode rated at 1.5 watts. It features a nominal Zener voltage of 15.0 V with a standard tolerance of ±5%. The device operates within a junction and storage temperature range of -65°C to +175°C. Key electrical parameters include a maximum dynamic impedance of 600 Ohms at the test current of 17.0 mA, a maximum reverse leakage current of 0.05 µA, and a maximum continuous regulator current of 0.95 A.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction with internal metallurgical bonds for high reliability.
• Qualified per MIL-PRF-19500/406 for JAN, JANTX, JANTXV, and JANS levels.
• Inherently radiation hard and non-sensitive to electrostatic discharge.

Single Zener Diodes Applications

• High-reliability voltage regulation where failure cannot be tolerated.
• Military and aerospace electronic systems requiring robust component performance.
• Circuit protection in harsh environments characterized by extreme temperatures.

Single Zener Diodes Procurement Notes

Verify the specific qualification level (JAN, JANTX, JANTXV, or JANS) required for your application, as this affects availability and compliance. Confirm RoHS status if applicable, noting that RoHS compliance is available on commercial grade versions only. Ensure the ordering suffix matches the desired tolerance and packaging specifications before finalizing procurement.

Single Zener Diodes Selection Notes

Select the 1N4469 when a 15.0 V reference is needed in a 1.5 W axial lead package. Consider tighter tolerance options using 'C' (2%) or 'D' (1%) suffixes if precision is critical. Evaluate thermal derating curves for high-temperature operation above ambient conditions. Verify compatibility with existing circuit layouts due to the DO-41 package dimensions.

Single Zener Diodes Part Context

This component belongs to the 1N4460–1N4496 series of industry-recognized Zener voltage regulators. Manufactured originally by Microsemi and now part of Microchip Technology, these devices are designed for demanding applications. The series offers a wide selection of voltages from 3.3 to 200 volts, providing flexibility for various power supply and regulation designs.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 15.0 V nominal voltage, 1.5 W power rating, and DO-41 package. Verify that substitute components meet the same MIL-PRF-19500/406 qualification levels if military-grade reliability is required. Check dynamic impedance and leakage current specifications to ensure circuit performance remains unaffected.