1N3022DUR-1

Overview

The Microchip Technology 1N3022DUR-1 is a surface mount Zener diode in the DO-213AB (MELF) package. It provides a nominal Zener voltage of 12 V at a test current of 21 mA with a maximum dynamic impedance of 9 Ohms. The device features a maximum reverse leakage current of 10 µA and a voltage temperature coefficient of 0.081 %/°C. It supports a DC power dissipation of 1 W, operating within a junction temperature range of -55 °C to +175 °C.

Feature Summary

• Hermetically sealed glass MELF construction for high reliability
• Metallurgically bonded internal contacts for enhanced stability
• Leadless surface mount design suitable for high-density applications

Applications

• Voltage regulation in high-reliability circuits
• High-density electronic assemblies requiring low parasitic components
• Military and aerospace systems utilizing JAN or JANTXV qualifications

Procurement Notes

Verify the specific suffix configuration against the part nomenclature table to confirm tolerance level and RoHS compliance status. Ensure the ordering code matches the required military qualification level (JAN, JANTX, or JANTXV) as defined in the manufacturer's documentation. Confirm package outline compatibility during procurement.

Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for environments demanding high thermal stability and radiation hardness. The DO-213AB package offers a leadless form factor ideal for space-constrained designs. Verify that the 12 V breakdown voltage aligns with the circuit's regulation requirements and that the 1 W power rating accommodates the expected thermal load.

Part Context

This device belongs to the 1N3016B-1 through 1N3045B-1 series, which are surface mount equivalents of JEDEC registered axial diodes. The series covers a Zener voltage range from 6.8 V to 110 V. The 1N3022 variant specifically targets the 12 V segment of this lineup, offering standardized performance metrics for precision regulation tasks.

Replacement Considerations

Direct replacements include other 1N3022 variants with compatible suffixes such as 1N3022BUR-1 or 1N3022DUR-1, provided the tolerance and qualification levels match the design requirements.