1N5225A

Single Zener Diodes Overview

The Microchip Technology 1N5225A is a Zener diode designed for voltage regulation applications. It operates within the DO-35 axial leaded glass package, providing a nominal Zener voltage of 3.9 V with a standard tolerance of 10%. The component features a power dissipation rating of 500 mW and maintains a low reverse leakage current of 100 nA. It supports a wide operating temperature range from -65°C to +200°C, ensuring reliability in demanding environments.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using avalanche breakdown characteristics
• Constructed with hermetically sealed glass axial leads for environmental protection
• Capable of operation at elevated temperatures up to 200°C

Single Zener Diodes Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• Clamping applications in signal processing

Single Zener Diodes Procurement Notes

Verify the specific suffix letter on the part number to confirm the exact voltage tolerance required for the design. Confirm that the DO-35 package dimensions match the PCB footprint. Ensure the manufacturer documentation specifies the correct test current conditions for the 3.9 V specification before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 3.9 V reference is needed in a small form factor. The 500 mW rating suits low-power designs. Consider the 10% tolerance if tighter precision is not critical. Verify thermal management requirements given the high maximum junction temperature capability.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a broad selection of voltages from 2.4 V to 200 V in standard packages. These components are widely used in general-purpose electronics requiring reliable voltage stabilization.

Single Zener Diodes Replacement Considerations

Check for equivalent parts from other manufacturers offering the same 3.9 V Zener voltage in a DO-35 package. Verify that any substitute matches the 500 mW power dissipation and 10% tolerance specifications.