1N4730UR-1/TR

Overview

The Microchip Technology 1N4730UR-1/TR is a surface mountable 1.0 W glass Zener diode in the DO-213AB MELF package. It provides a nominal Zener voltage of 3.9 V with a standard tolerance of +/- 10%. The device operates within a temperature range of -65°C to +175°C and features hermetically sealed construction for high reliability applications.

Feature Summary

• Hermetically sealed glass MELF package suitable for high density mounting
• Electrically equivalent to JEDEC registered axial leaded series
• Inherently radiation hard per MicroNote 050
• Specified capacitance characteristics

Applications

• Voltage regulation in high density circuits
• High reliability applications requiring source control drawings
• Low parasitic requirement environments

Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm tolerance levels and compliance status. Ensure the TR suffix is correctly identified as indicating tape and reel packaging options. Cross-reference part numbers with manufacturer documentation to validate electrical parameters before integration into designs.

Selection Notes

Select this component when a surface mount solution is required that matches the performance of traditional axial leads. Consider the thermal resistance specifications for FR4 PCB mounting. Evaluate the wide operating temperature range for harsh environment suitability.

Part Context

This component belongs to the 1N4728AUR through 1N4764AUR series of surface mount Zener diodes. It serves as the DO-213AB equivalent to the 1N4728A through 1N4764A registration in the DO-41 package, offering similar electrical characteristics in a compact form factor.

Replacement Considerations

Surface mount equivalents include SMAJ4728A to SMAJ4764A and MLL4728A to MLL4764A. Plastic body axial-leaded equivalents are available as 1N4728A to 1N4764A.