1N4131UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4131UR-1/TR is a 75V Zener voltage regulator in the 1N4099UR through 1N4135UR series. It features a hermetically sealed glass DO-213AA (MELF) surface mount package with an internal metallurgical bond. The device provides 0.5W steady-state power dissipation and operates within a temperature range of -65°C to +175°C. Electrical characteristics at 25°C include a maximum impedance of 0.01 ohms, a reverse current of 40µA, and a typical temperature coefficient of 0.095%/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF package with internal metallurgical bond
• Radiation hard construction suitable for high reliability applications
• ESD nonsensitive per MIL-STD-750 Method 1020
• Minimal capacitance for signal integrity

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• High reliability aerospace systems
• Precision reference circuits requiring low noise

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the official datasheet before ordering. Confirm that the TR suffix corresponds to tape and reel packaging as specified. Ensure compliance with RoHS or leaded finish requirements based on the e3 designation if applicable. Cross-reference the JAN or military qualification levels if required by the design specifications.

Single Zener Diodes Selection Notes

Select this component when a surface mount equivalent to axial-leaded 1N4131 is needed. Consider the 0.5W power rating and thermal resistance values for PCB layout. Evaluate the 75V breakdown voltage against circuit requirements. Check the tight tolerance availability if standard 5% is insufficient.

Single Zener Diodes Part Context

This part belongs to the Microsemi Scottsdale Division 1N4099UR through 1N4135UR series. These are 0.5-watt glass surface mount Zeners designed as direct replacements for JEDEC registered axial parts. The series offers voltages from 1.8V to 100V in various tolerances.

Single Zener Diodes Replacement Considerations

Direct surface mount equivalents include the MLL4131. Axial-leaded replacements are the standard 1N4131. Verify package dimensions and pinout compatibility during substitution.