1N4469/TR

Single Zener Diodes Overview

The Microchip Technology 1N4469/TR is a commercial-grade Zener voltage regulator with a nominal breakdown voltage of 15 V. It operates within a junction temperature range of -65 °C to +175 °C and dissipates up to 1.5 W at a lead temperature of +112 °C. The device features a maximum dynamic impedance of 9 Ohms at a test current of 17 mA, with a maximum reverse leakage current of 0.05 µA at 12 V. It utilizes a DO-41 axial-lead package.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction using internal metallurgical bonds for robust performance.
• Triple-layer passivation provides protection against environmental stressors.
• Inherently radiation hard as described in Microsemi MicroNote 050.
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges.
• High-reliability applications where failure cannot be tolerated.
• Military systems requiring MIL-PRF-19500/406 qualified components.

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix to confirm compliance requirements. Commercial versions may offer RoHS compliant matte/tin terminals, while military grades utilize tin/lead terminations. Confirm that the tape and reel packaging aligns with EIA-296 standards if automated assembly is required. Ensure the component meets the necessary reliability level for the intended deployment environment.

Single Zener Diodes Selection Notes

Select this component when a 15 V reference is needed in an axial-lead form factor. Consider the 1.5 W power dissipation capability and wide thermal operating range for demanding environments. Evaluate the 9 Ohm dynamic impedance for circuit stability requirements. Verify that the standard 5% tolerance meets the design specifications without requiring tighter tolerance variants.

Single Zener Diodes Part Context

This part belongs to the 1N4460 through 1N4496 series of industry-recognized 1.5 Watt Zener diodes. The series offers selections from 3.3 to 200 Volts with standard 5% tolerance. Military qualifications are available under JAN, JANTX, JANTXV, and JANS levels per MIL-PRF-19500/406.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N4469US, JANTX1N4469DUS, and JANTXV1N4468/TR. Verify package compatibility and qualification levels before substitution.