1N3039BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N3039BUR-1 is a 1 Watt surface mount Zener diode in the DO-213AB (MELF) package. It features a nominal Zener voltage of 39 V with a B tolerance of 5%. The device operates within a junction temperature range of -55°C to +175°C and has a maximum reverse leakage current of 10 µA at 29.7 V. It exhibits a dynamic impedance of 0.25 Ohms at IZT and a temperature coefficient of 0.101 %/°C.

Single Zener Diodes Feature Summary

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

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability military and aerospace systems
• High-density electronic packaging requiring low parasitics

Single Zener Diodes Procurement Notes

Verify the specific suffix codes against the datasheet nomenclature to confirm the exact reliability level, voltage tolerance, and RoHS compliance status. Ensure the ordering part number matches the required MIL-PRF-19500/115 qualification or commercial grade specifications before procurement.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 39 V reference with 5% tolerance in a leadless MELF package. Consider the 1 W power dissipation limit and derating requirements above 125°C. Verify that the mounting surface Coefficient of Expansion matches the device's axial expansion rate for mechanical integrity.

Single Zener Diodes Part Context

This part belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt surface mount Zener diodes. These devices serve as leadless equivalents to JEDEC registered 1N3016B-1 through 1N3045B-1 diodes, offering similar electrical performance in a compact DO-213AB outline.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts from the 1N3016BUR-1 to 1N3045BUR-1 series if voltage ratings differ. For non-surface mount needs, the corresponding 1N30xxB-1 axial leaded versions are available.