1N4120UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4120UR/TR is a glass surface mount Zener voltage regulator in the DO-213AA package. It provides a nominal Zener voltage of 30 V at a test current of 250 µA with a standard tolerance of ±5%. The device features a maximum Zener impedance of 200 Ω and a maximum reverse leakage current of 1.0 µA. Rated for 0.5 watts steady-state power dissipation, it operates within a temperature range of -65°C to +175°C. The component is supplied in tape and reel packaging.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA (MELF style) surface mount package
• Internal metallurgical bond construction for enhanced reliability
• Inherently radiation hard design suitable for harsh environments
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Reference voltage generation in electronic circuits
• Protection against electrostatic discharge (ESD)

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the tape and reel packaging configuration specified in the datasheet. Confirm the part number matches the JEDEC registered 1N4120 series specifications. Ensure the required voltage tolerance aligns with the standard ±5% rating provided for this specific designation.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability applications. The DO-213AA package offers a compact footprint equivalent to axial-leaded counterparts. Consider the radiation hardness and ESD immunity if the application environment demands robust semiconductor performance.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR through 1N4135UR series of 0.5 watt glass surface mount Zener regulators. These devices are designed as surface mount equivalents to JEDEC registered axial-leaded parts. The series covers a voltage selection from 1.8 to 100 volts with standard 5% tolerances.

Single Zener Diodes Replacement Considerations

Equivalent axial-leaded parts include the 1N4120. Surface mount equivalents include MLL4120. Parts with tighter tolerances may require suffixes such as C or D.