1N4706UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4706UR-1/TR is a surface mount Zener voltage regulator in the 1N4678UR-1 through 1N4717UR-1 series. It features a hermetically sealed glass DO-213AA (MELF) package with an internal metallurgical bond for high reliability. The nominal Zener voltage is 19 V with a standard tolerance of ±5%. Key electrical parameters include a Zener test current of 50 µA, a maximum reverse leakage current of 0.05 µA at 14.4 V, and a maximum DC Zener current of 25.0 mA. Steady-state power dissipation is rated at 0.5 W.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF package construction
• Internal metallurgical bond between metal slugs and silicon die
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic circuits requiring hermetic sealing
• Radiation-hardened system designs

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official documentation to confirm tolerance and RoHS status. The TR suffix indicates tape and reel packaging per EIA-481-1-B standards. Ensure compatibility with MIL-PRF-19500 screening requirements if applicable to the target application environment.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 19 V reference in a compact surface mount form factor. The low test current of 50 µA supports efficient operation in low-power circuits. Consider the DO-213AA package dimensions and soldering temperature limits when designing the PCB footprint and assembly process.

Single Zener Diodes Part Context

This device belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 W glass surface mount Zener diodes. The series offers voltage selections from 1.8 V to 43 V. The -1 suffix denotes the internal metallurgical bond option, which enhances reliability compared to standard commercial equivalents.

Single Zener Diodes Replacement Considerations

Equivalent JEDEC registered axial-leaded versions are available in the 1N4678-1 through 1N4717-1 series. Surface mount alternatives within the same family include variants with tighter voltage tolerances identified by C or D suffixes.