1N3824AUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3824AUR-1/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 4.3 V with a tolerance of ±5%. The device operates in a surface-mount DO-213AB (MELF) package and supports a maximum power dissipation of 1 W. Key electrical parameters include a test current of 58 mA, a Zener impedance of 9 Ohms, and a maximum reverse leakage current of 5 µA. It functions within an extended temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a single Zener junction configuration.
• Engineered for high-temperature reliability with operation up to 175°C.
• Utilizes a glass-encapsulated MELF package suitable for automated surface-mount assembly.

Single Zener Diodes Applications

• Precision voltage reference circuits
• Over-voltage protection stages
• Voltage clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix UR-1/TR against official Microchip documentation to confirm reel packaging and exact manufacturing lot details. Ensure compatibility with existing board layouts by cross-referencing the DO-213AB footprint dimensions. Confirm that the 1 W power rating aligns with thermal management requirements in the final design environment.

Single Zener Diodes Selection Notes

Select this component when a 4.3 V regulation point is required in a compact surface-mount form factor. The wide operating temperature range makes it suitable for harsh environments where standard commercial-grade parts may fail. Verify that the 9 Ohm impedance meets the noise and stability requirements of the target circuit.

Single Zener Diodes Part Context

This part belongs to the 1N382x series of Zener diodes manufactured by Microchip Technology. These components are typically utilized in industrial and aerospace sectors requiring robust discrete semiconductor solutions. The MELF packaging offers improved mechanical strength compared to traditional axial leads while maintaining low profile characteristics.

Single Zener Diodes Replacement Considerations

Consult Microchip's official substitution guide for verified equivalents. Generic replacements must match the 4.3 V Zener voltage, 1 W power rating, and DO-213AB package constraints to ensure functional parity.