1N3048BUR-1/TR

Overview

The Microchip Technology 1N3048BUR-1/TR is a surface mount glass Zener diode in the DO-213AB outline, rated for 1.5 watts power dissipation at 25°C. It provides a nominal Zener voltage of 150 volts with a test current of 1.7 mA and a maximum impedance of 1000 ohms. The device operates within a temperature range of -65°C to +175°C and features a hermetically sealed glass MELF package.

Feature Summary

• Hermetically sealed double-slug glass construction for high-reliability applications
• Metallurgically enhanced internal contact design for 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 the specific electrical parameters against the official datasheet before integration. Confirm that the TR suffix indicates tape and reel packaging per EIA-481-1-A standards. Ensure compatibility with recommended FR4 PC board footprints to maintain specified thermal performance limits.

Selection Notes

Select this component when a 150-volt Zener reference is required in a compact surface mount form factor. Consider the 1.5-watt steady-state power rating and the wide operating temperature range for demanding environments. Verify that the leadless DO-213AB package aligns with the target PCB layout constraints.

Part Context

This part belongs to the 1N3016BUR-1 through 1N3051BUR-1 series of surface mountable Zener diodes. It serves as the SMD equivalent to the JEDEC registered 1N3016 through 1N3051 axial lead devices, offering higher power ratings while maintaining similar electrical characteristics in a smaller footprint.

Replacement Considerations

Equivalent screening options are available by adding MQ, MX, or MV prefixes to the part number.