1N4099DUR-1

Single Zener Diodes Overview

The Microchip Technology 1N4099DUR-1 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 6.8 V with a tight tolerance of ±1%. The device operates in a surface-mount DO-213AA (SMB) package and dissipates up to 500 mW of power. Key electrical characteristics include a maximum reverse leakage current of 1 µA and a Zener impedance of 200 Ohms at a test current of 250 µA. It supports an operating temperature range from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• High precision voltage regulation with ±1% tolerance
• Robust thermal performance with 500 mW power dissipation
• Low leakage current for sensitive circuit protection
• Surface-mount construction for automated assembly

Single Zener Diodes Applications

• Precision voltage reference circuits
• Over-voltage protection stages
• Clamping applications in signal conditioning
• Power supply regulation modules

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., /TR for tape and reel) against your bill of materials, as packaging formats vary. Confirm RoHS compliance status if required by your manufacturing standards. Ensure the supplier provides valid traceability documentation for quality assurance purposes. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Single Zener Diodes Selection Notes

Select this component when high accuracy is critical due to its ±1% voltage tolerance. The 500 mW rating allows for higher current handling compared to standard 250 mW axial equivalents. The surface-mount package facilitates compact PCB layouts. Consider the low leakage current specification for high-impedance input stages where minimal current draw is essential.

Single Zener Diodes Part Context

This part belongs to Microchip's family of metallurgically bonded glass surface mount Zener diodes. It serves as a modern replacement for traditional through-hole axial packages like DO-35, offering similar electrical performance in a smaller footprint. The series is engineered for reliability in demanding electronic environments.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 6.8V Zener diodes in the DO-213AA/SMB package with ±1% tolerance. Verify that alternative parts meet the same 500 mW power dissipation and 200 Ohm impedance specifications. Ensure the replacement maintains the -65 °C to +175 °C operating temperature range.