1N3046BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3046BUR-1/TR is a surface mount glass Zener diode in the DO-213AB outline, rated for 1.5 watts power dissipation. It provides a nominal Zener voltage of 120 volts with a test current of 2.0 mA and maximum impedance of 550 ohms. The device operates from -65°C to +175°C and features hermetically sealed double-slug glass construction. The TR suffix indicates tape and reel packaging per EIA-481-1-A.

Single Zener Diodes Feature Summary

• Hermetically sealed double-slug glass construction for high reliability
• Metallurgically enhanced internal contact design for lower thermal resistance
• Leadless surface mount package suitable for high-density mounting
• Inherently radiation hard

Single Zener Diodes Applications

• High-reliability applications requiring low parasitic requirements
• Voltage regulation over broad operating current and temperature ranges
• High-density circuit board mounting

Single Zener Diodes Procurement Notes

Verify the specific screening level required for your application. Standard commercial versions are available, while JAN, JANTX, JANTXV, and JANS equivalents require adding MQ, MX, MV, or MSP prefixes to the part number. Confirm RoHS compliance status by checking for the e3 suffix if lead-free terminals are mandatory. Ensure the TR suffix matches your automated assembly equipment specifications.

Single Zener Diodes Selection Notes

Select this component when a 120-volt Zener reference is needed in a compact surface mount form factor. The 1.5-watt rating allows for higher power handling compared to standard axial equivalents. Consider the specified capacitance characteristics for AC signal applications. Verify that the thermal resistance values align with your PCB footprint and ambient temperature constraints.

Single Zener Diodes Part Context

This device belongs to the 1N3016BUR-1 through 1N3051BUR-1 series of surface mountable Zener diodes. It serves as the surface mount equivalent to the JEDEC registered 1N3016B through 1N3051B axial lead devices, offering similar electrical performance in a DO-213AB package. The series covers a wide voltage range from 6.8 to 200 volts.

Single Zener Diodes Replacement Considerations

Direct replacements include the axial lead 1N3046B for through-hole designs. Equivalent surface mount options within the same series include MLL3046B. Military screening levels can be obtained by using prefixes such as MX1N3046BUR-1 for JANTX qualification.