1N4131UR-1

Single Zener Diodes Overview

The 1N4131UR-1 is a Zener diode manufactured by Microchip Technology, designed for surface mount applications. It utilizes the DO-213AA glass MELF package and features an internal metallurgical bond, indicated by the "-1" suffix. The device operates within a junction temperature range of -65°C to +175°C and has a power dissipation rating of 0.5 W. It provides a nominal Zener voltage of 75 V with a tolerance of 5% and a maximum reverse current of 5 µA at the rated voltage.

Single Zener Diodes Feature Summary

• Internal metallurgical bond construction for enhanced reliability
• Hermetically sealed glass surface mount packaging
• Qualified for high-reliability military standards

Single Zener Diodes Applications

• High-reliability voltage regulation circuits
• Military aerospace electronic systems
• Harsh environment protection networks

Single Zener Diodes Procurement Notes

Verify the specific qualification level (JAN, JANTX, or JANS) required for your application, as the base part number may correspond to different reliability grades. Confirm that the DO-213AA footprint matches your PCB design constraints. Ensure the 0.5 W power rating is sufficient for your thermal management strategy under maximum operating conditions.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed, surface-mount Zener diode with a metallurgical bond is required for high-reliability designs. The 75 V rating suits mid-range voltage clamping needs. Consider the tight 5% tolerance if precise voltage reference stability is critical. Verify compatibility with MIL-PRF-19500/435 standards if military qualification is mandatory.

Single Zener Diodes Part Context

This device belongs to the 1N4099UR-1 through 1N4135UR-1 series of 0.5 W Zener regulators. These components are surface mount equivalents of traditional through-hole 1N4099 through 1N4135 series diodes. The series offers voltages from 1.8 V to 100 V in various tolerances, all housed in the compact DO-213AA glass package.

Single Zener Diodes Replacement Considerations

Direct replacements include other manufacturers' DO-213AA packaged Zener diodes with a 75 V nominal voltage and 0.5 W power rating. Ensure any substitute also meets the -65°C to +175°C operating temperature range and hermetic sealing requirements if used in military or space applications.