1N3034BUR-1/TR

Overview

The Microchip Technology 1N3034BUR-1/TR is a surface mount Zener diode in the DO-213AB (MELF) package. It provides a nominal Zener voltage of 39 V with a 5% tolerance at a test current of 6.5 mA. The device features a maximum reverse leakage current of 10 µA and a dynamic impedance of 60 Ohms. It supports a DC power dissipation of 1 W, operating within a temperature range of -55 °C to +175 °C.

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

Applications

• Voltage regulation over broad operating currents
• High-reliability military and aerospace circuits
• Low parasitic requirement circuit 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 tape and reel specifications for automated assembly processes.

Selection Notes

Select this component when a leadless surface mount equivalent to the 1N3034B-1 JEDEC registration is required. Consider its low leakage characteristics and radiation hardness for environments where standard packages are unsuitable or space constraints exist.

Part Context

This part belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt Surface Mount Zener Diodes. These devices serve as direct surface mount replacements for traditional axial-leaded equivalents while maintaining similar electrical performance profiles.

Replacement Considerations

Direct replacement options include the 1N3034B-1 for through-hole implementations. Verify that any substitute maintains the DO-213AB outline dimensions and hermetic sealing requirements for the target application.