1N3022DUR-1/TR

Overview

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

Feature Summary

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

Applications

• Voltage regulation over broad operating currents
• High-reliability military and aerospace circuits
• Low parasitic requirement designs

Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm RoHS compliance status and military qualification levels. Ensure the ordering code matches the required tolerance and packaging format. Cross-reference the manufacturer's latest documentation to validate availability and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component for applications requiring precise voltage reference stability in compact surface mount layouts. The low thermal resistance and radiation hardness make it suitable for demanding environments. Verify that the mounting surface coefficient of expansion matches the device specifications to ensure mechanical integrity during thermal cycling.

Part Context

This part belongs to the 1N3016B-1 through 1N3045B-1 series, which are surface mount equivalents of JEDEC registered axial leaded diodes. Manufactured by Microchip Technology, these devices utilize a double plug glass construction. The series provides a wide selection of Zener voltages ranging from 6.8 V to 110 V in a standardized MELF outline.

Replacement Considerations

Direct replacements include other parts within the 1N3016BUR-1 to 1N3045BUR-1 series from Microchip or Microsemi. Verify equivalent electrical parameters such as Zener voltage, tolerance, and package dimensions when substituting.