1N3825AUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3825AUR-1/TR is a single surface-mount Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 4.7 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1.5 W and operates within the DO-213AB (MELF, LL41) package. Key electrical characteristics include a maximum dynamic impedance of 8 Ohms and a reverse leakage current of 10 µA at 1 V. This component provides stable voltage reference capabilities in a compact form factor suitable for automated assembly processes.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a nominal 4.7 V Zener potential
• Engineered for high-power handling up to 1.5 W dissipation
• Utilizes low-leakage silicon construction for signal integrity
• Designed for surface-mount integration via MELF packaging

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Over-voltage protection stages in power supplies
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify the specific suffix -1/TR confirms the tape-and-reel packaging format required for your manufacturing line. Confirm that the DO-213AB footprint matches your PCB design constraints. Ensure the 1.5 W power rating aligns with your thermal management strategy under maximum load conditions. Cross-reference the 4.7 V tolerance against your circuit's sensitivity requirements before finalizing the bill of materials.

Single Zener Diodes Selection Notes

Select this component when a robust 4.7 V reference is needed in a surface-mount environment. The 1.5 W rating allows for higher current handling compared to standard small-signal variants. The MELF package offers hermetic sealing benefits for harsh environments. Consider the 8 Ohm impedance for applications requiring tight voltage stability under varying current loads.

Single Zener Diodes Part Context

This part belongs to the Microchip Technology Zener Diode family, specifically optimized for surface-mount technology. It serves as a voltage regulator or reference element within semiconductor assemblies. The DO-213AB package standardizes its physical dimensions for compatibility with automated pick-and-place equipment. It complements other discrete diode products in the manufacturer's portfolio for general-purpose electronic designs.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 4.7 V Zener voltage, 1.5 W power rating, and DO-213AB package. Verify equivalent leakage current and impedance specifications to ensure circuit performance parity. Generic equivalents may lack the specific reliability standards associated with the original manufacturer.