1N4119UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4119UR/TR is a glass surface mount Zener voltage regulator with a nominal breakdown voltage of 28V. It operates within the 1N4099UR through 1N4135UR series and utilizes a DO-213AA (SOD80/MLL34) MELF package. The device provides a steady-state power dissipation of 0.5 watts at an end cap temperature below 100°C or ambient temperature below 25°C. Electrical characteristics include a maximum Zener impedance of 0.01 ohms, a reverse current of 40 µA, and a typical temperature coefficient of 0.085 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF package
• Inherently radiation hard design
• ESD nonsensitive per MIL-STD-750 Method 1020
• Minimal capacitance for high-frequency stability

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Radiation-hardened circuit protection
• Precision reference applications requiring low noise

Single Zener Diodes Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration. Confirm RoHS compliance status via the 'e3' designation if applicable to the specific lot. Ensure the ordering part number matches the required tolerance level, as standard tolerances are plus or minus 5% without additional suffixes.

Single Zener Diodes Selection Notes

Select this component when a surface mount equivalent to the axial-leaded 1N4119 is required. Consider the 0.5-watt power rating and thermal resistance values for PCB layout. Verify that the 28V nominal voltage aligns with the circuit requirements and check the operating temperature range specifications.

Single Zener Diodes Part Context

This device belongs to the Microsemi Scottsdale Division 1N4099UR through 1N4135UR series. These components serve as surface mount replacements for JEDEC registered axial-leaded Zener diodes. The series offers a broad selection of voltages from 1.8 to 100 volts in a compact glass package suitable for automated assembly processes.

Single Zener Diodes Replacement Considerations

Direct surface mount equivalents include MLL4119. Axial-leaded counterparts are designated as 1N4119. Military qualified variants with internal metallurgical bonds are available by adding a '-1' suffix to the part number.