1N3026BUR-1/TR

Overview

The Microchip Technology 1N3026BUR-1/TR is a surface mount glass Zener diode with a nominal voltage of 18 V and a power dissipation rating of 1.5 W at 25 °C. It utilizes the DO-213AB package and operates within a temperature range of -65 °C to +175 °C. The device features a maximum reverse leakage current of 0.5 μA, a test current of 14.0 mA, and a typical temperature coefficient of 0.075 %/°C.

Feature Summary

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

Applications

• High-density circuit board mounting
• Voltage regulation over broad operating currents
• High-reliability electronic systems

Procurement Notes

Verify that the TR suffix indicates tape and reel packaging per EIA-481-1-A standards. Confirm RoHS compliance status by checking for the e3 suffix in the specific ordering code. Ensure the required screening level (JAN, JANTX, or JANTXV) is specified via the appropriate MQ, MX, or MV prefix if military-grade qualification is necessary.

Selection Notes

Select this component when a 1.5 W surface mount Zener diode is required instead of the lower-power axial lead equivalents. Consider the DO-213AB footprint dimensions and recommended pad layout during PCB design. Evaluate the thermal resistance characteristics against the expected ambient temperature and steady-state power dissipation limits.

Part Context

This part belongs to the 1N3016BUR-1 through 1N3051BUR-1 series of surface mountable glass Zener diodes. It serves as the surface mount equivalent to the JEDEC registered 1N3016 through 1N3051 devices but offers a higher power rating of 1.5 Watts compared to traditional axial packages.

Replacement Considerations

Equivalent axial lead versions are available as 1N3026B through 1N3051B. Alternative naming includes MLL3026B.