1N3042BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N3042BUR-1 is a surface mount Zener diode with a nominal voltage of 82 V. It operates within a temperature range of -55°C to +175°C and dissipates up to 1 W. Key electrical parameters include a test current of 3.0 mA, maximum impedance of 0.25 Ohms at IZT, and reverse leakage of 10 µA at 62.2 V. The device features a DO-213AB (MELF) package.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF construction for high reliability
• Metallurgically bonded internal contacts for low thermal resistance
• Leadless surface mount design suitable for high-density applications
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation in high-reliability environments
• High-density circuit board mounting
• Military and aerospace systems requiring JAN/JANTX/JANTXV qualifications

Single Zener Diodes Procurement Notes

Verify the specific military qualification level required, as the part number suffix indicates tolerance but not necessarily the reliability grade. Confirm RoHS compliance status if applicable, as commercial versions differ from qualified levels. Ensure the ordering suffix matches the desired voltage tolerance and packaging configuration before procurement.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed, leadless surface mount Zener diode is required for high-reliability designs. The DO-213AB package offers a compact footprint compared to axial leads. Consider the 82 V nominal rating and 1 W power dissipation capabilities against the specific circuit requirements.

Single Zener Diodes Part Context

This device belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt Surface Mount Zener Diodes. These parts are surface mount equivalents to JEDEC registered 1N3016B-1 through 1N3045B-1 devices, designed to meet the DO-213AB outline while maintaining the performance characteristics of their axial counterparts.

Single Zener Diodes Replacement Considerations

Direct replacements include other members of the 1N30xxBUR-1 series or equivalent MIL-PRF-19500/115 qualified diodes in the DO-213AB package. Verify that substitute parts match the 82 V nominal voltage, 1 W power rating, and hermetic sealing requirements.