1N3044BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N3044BUR-1 is a surface mount Zener diode with a nominal voltage of 100 V. It operates within a temperature range of -55 °C to +175 °C and dissipates up to 1 W. The device features a maximum reverse leakage current of 10 µA, a dynamic impedance of 350 Ohms at the test current, and a positive temperature coefficient of 0.11 %/°C. Packaged in a DO-213AB MELF outline, it provides hermetic sealing for high-reliability applications.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction with metallurgically bonded internal contacts
• Leadless surface mount design suitable for high-density mounting
• Inherently radiation hard and non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability military and aerospace circuits
• Low parasitic requirement applications

Single Zener Diodes Procurement Notes

Verify the specific reliability level required, as the part number suffix indicates commercial grade availability while JAN, JANTX, and JANTXV levels exist under different nomenclature. Confirm RoHS compliance status if applicable, as this attribute is restricted to commercial grades only. Ensure the ordering code matches the desired tolerance and qualification tier before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 100 V reference is needed in a leadless surface mount package. Consider the positive temperature coefficient for thermal stability requirements. Verify that the mounting surface Coefficient of Expansion matches the device's axial expansion characteristics to ensure mechanical integrity during thermal cycling.

Single Zener Diodes Part Context

This device belongs to the 1N3016BUR-1 through 1N3045BUR-1 series, which serves as the surface mount equivalent to the JEDEC registered 1N3016B-1 through 1N3045B-1 series. The series utilizes the DO-213AB (MELF) package to provide lower parasitics compared to traditional axial leads.

Single Zener Diodes Replacement Considerations

Direct replacements include other manufacturers' equivalents in the DO-213AB package with matching 100 V Zener voltage and 1 W power dissipation ratings. Verify that any substitute maintains the same hermetic seal quality and maximum operating temperature limits.