1N3040BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N3040BUR-1 is a surface mount Zener diode with a nominal voltage of 68 V and a 5% tolerance. It operates within a junction temperature range of -55 °C to +175 °C and dissipates up to 1 W. The device features a hermetically sealed DO-213AB (MELF) package, offering low leakage current and high reliability for dense mounting applications.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction with metallurgically bonded internal contacts
• Leadless surface mount MELF package design for high-density mounting
• Qualified per MIL-PRF-19500/115 for JAN, JANTX, and JANTXV military levels

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic systems requiring radiation hardness
• Low parasitic requirement circuit designs

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's nomenclature guide to confirm RoHS compliance status and exact voltage tolerance class. Ensure the procurement specification matches the required military qualification level if applicable, as commercial and qualified versions share the base part number but differ in screening and packaging.

Single Zener Diodes Selection Notes

Select this component when a leadless surface mount Zener diode with high thermal reliability is required. The DO-213AB package provides an axial coefficient of expansion compatible with standard mounting surfaces. Verify that the system input voltage does not exceed the maximum reverse voltage rating under all transient conditions.

Single Zener Diodes Part Context

This device belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt Surface Mount Zener Diodes. The series offers a wide selection of voltages from 6.8 V to 110 V in the same physical outline, allowing for standardized inventory management across different voltage requirements in high-density PCB layouts.

Single Zener Diodes Replacement Considerations

Direct equivalents include other manufacturers' DO-213AB (MELF) Zener diodes rated at 68 V with 5% tolerance and 1 W power dissipation. Verify that replacement parts meet the same hermetic sealing and thermal resistance specifications.