1N3045BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N3045BUR-1 is a surface mount Zener diode qualified per MIL-PRF-19500/115. It features a hermetically sealed glass MELF (DO-213AB) package with metallurgically bonded terminals. The device provides a nominal Zener voltage of 110 V at a test current of 2.3 mA, with a maximum dynamic impedance of 450 Ohms and a maximum reverse leakage current of 10 µA. It supports a DC power dissipation of 1.0 W and operates within a junction temperature range of -55°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed double plug glass construction for high-reliability environments
• Metallurgically enhanced internal contact design for lower thermal resistance
• Leadless surface mount MELF package suitable for high-density applications
• Inherently radiation hard characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-density circuit board mounting requiring low parasitic elements
• Military and aerospace systems requiring MIL-PRF-19500/115 qualification

Single Zener Diodes Procurement Notes

Verify the specific reliability level required, as the base part number covers JAN, JANTX, and JANTXV qualifications. Confirm RoHS compliance status, as this attribute is typically associated with commercial grade versions rather than military specifications. Ensure the ordering suffix matches the desired tolerance and environmental screening requirements defined in the manufacturer's nomenclature guide.

Single Zener Diodes Selection Notes

Select this component when a leadless surface mount equivalent to the axial 1N3045B-1 is needed. It is appropriate for designs requiring a 110 V reference with strict leakage limits. Consider the DO-213AB package dimensions and the coefficient of expansion match with the mounting surface. Verify that the 1.0 W power rating and thermal derating curves meet the system's thermal management constraints.

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 Zener voltages ranging from 6.8 volts to 110 volts. These components serve as surface mount replacements for JEDEC registered devices originally housed in the DO-13 package, providing similar electrical performance in a compact form factor.

Single Zener Diodes Replacement Considerations

The 1N3045B-1 in the DO-41 glass axial-leaded package is the direct axial counterpart. For lower voltage equivalents in the same package, consult the 1N3821AUR-1 through 1N3828AUR-1 series.