1N3045BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3045BUR-1/TR is a surface mount Zener diode in the DO-213AB (MELF) package. It provides a nominal Zener voltage of 110 V at a test current of 2.3 mA. The device features a maximum dynamic impedance of 450 Ohms and supports a maximum regulator current of 8.3 mA. It operates within a junction temperature range of -55 to +175 °C with a DC power dissipation rating of 1.0 W.

Single Zener Diodes 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 thermal performance

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against the datasheet nomenclature, as ordering codes determine tolerance levels and RoHS compliance status. Confirm that the tape and reel packaging aligns with standard EIA-481-1-A specifications if automated placement is required. Ensure the procurement order matches the exact MIL-PRF-19500/115 qualification level intended for the application.

Single Zener Diodes Selection Notes

Select this component when a leadless surface mount form factor is required for space-constrained designs. The device offers a wide selection of Zener voltages from 6.8 to 110 V. Consider the metallurgically enhanced contact design for applications demanding lower thermal resistance and greater mechanical reliability compared to standard axial packages.

Single Zener Diodes Part Context

This part belongs to the 1N3016B-1 through 1N3045B-1 series, which are surface mount equivalents to JEDEC registered devices. The series is qualified under MIL-PRF-19500/115 for JAN, JANTX, and JANTXV reliability levels. It serves as a direct replacement for older axial-leaded components while providing improved mounting density and hermetic sealing capabilities.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts within the 1N3016BUR-1 to 1N3045BUR-1 series or commercial grade variants like the 1N3045AUR-1. Verify that any substitute maintains the same DO-213AB outline and meets the necessary MIL-PRF-19500/115 qualification requirements for the target environment.