1N4712UR-1/TR

Overview

The Microchip Technology 1N4712UR-1/TR is a 500 mW surface mount Zener diode in the DO-213AA package. It provides a nominal voltage of 28 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a low test current of 50 µA. The 'TR' suffix indicates tape and reel packaging.

Feature Summary

• Hermetically sealed glass MELF-style package
• Internal metallurgical bond for high reliability
• Non-sensitive to electrostatic discharge
• Inherently radiation hard

Applications

• Voltage regulation over broad operating ranges
• High-reliability electronic circuits
• Radiation-hardened applications

Procurement Notes

Verify the specific manufacturing origin, as this component may be produced by Microsemi or Microchip Technology depending on corporate history. Confirm RoHS compliance status, as commercial versions are available while others may not be. Ensure the ordering suffix matches the required tolerance and packaging format.

Selection Notes

Select this component for applications requiring a hermetically sealed surface mount Zener regulator. The DO-213AA package offers a surface mount equivalent to through-hole JEDEC types. Consider tighter tolerances if standard 5% accuracy is insufficient for the circuit design.

Part Context

This part belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 W glass surface mount Zener diodes. The series covers voltages from 1.8 V to 43 V. These devices serve as surface mount equivalents to registered through-hole components.

Replacement Considerations

Equivalent parts include 1N4712UR-1 without the TR suffix for bulk packaging. Other variants like MQ1N4712UR-1 offer different reliability levels.