1N4729AUR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4729AUR/TR is a surface mountable 1.0-watt glass Zener diode in the DO-213AB package. It provides a nominal Zener voltage of 3.6V with a standard tolerance of +/-5%. The device operates within a temperature range of -65°C to +175°C and features a maximum dynamic impedance of 10 Ohms at a test current of 69 mA. It includes a maximum reverse current of 100 µA and supports steady-state power dissipation up to 1.00 watts.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF package for high reliability applications
• Surface mount design suitable for high density mounting
• Inherently radiation hard per MicroNote 050
• ESD nonsensitive construction

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against the official datasheet to confirm electrical tolerances and screening options. Ensure the ordering part number matches the required JEDEC outline and terminal plating specifications. Confirm availability status directly with the manufacturer or authorized distributors as supply levels may vary.

Single Zener Diodes Selection Notes

Select this component when a surface mount equivalent to the axial 1N4729A is required. It offers identical electrical performance in a leadless DO-213AB package. Consider the hermetic seal and radiation hardness for demanding operational environments. Verify thermal derating requirements based on the specific mounting footprint and ambient conditions.

Single Zener Diodes Part Context

This device belongs to the 1N4728AUR through 1N4764AUR series of surface mount Zener diodes. It serves as the DO-213AB package counterpart to the registered 1N4728A through 1N4764A axial devices. The series covers a wide voltage range from 3.3V to 100V, providing standardized voltage regulation options in a compact form factor.

Single Zener Diodes Replacement Considerations

The 1N4729AUR/TR is electrically equivalent to the 1N4729A in the DO-41 package. Surface mount equivalents are available as SMAJ4729A.