1N4626D

Overview

The Microchip Technology 1N4626D is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.6 V with a power dissipation rating of 0.4 W. The device utilizes an axial-leaded DO-35 glass package, suitable for through-hole mounting. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a test current of 70 mA. The component operates within a temperature range from -65 °C to +200 °C, ensuring reliability in demanding environments.

Feature Summary

• Provides stable voltage regulation at a nominal 5.6 V reference level
• Constructed with metallurgically bonded glass encapsulation for durability
• Capable of handling up to 0.4 W of power dissipation
• Designed for low-noise operation in sensitive circuits

Applications

• Voltage reference sources in precision measurement equipment
• Overvoltage protection circuits for sensitive semiconductor components
• Clamping applications in signal processing paths
• Biasing networks in analog amplifier stages

Procurement Notes

Verify the specific suffix 'D' against official Microchip documentation to confirm exact tolerance and testing parameters, as suffixes often denote specific quality grades or binning criteria. Ensure the procurement channel provides valid traceability records, particularly if the application requires compliance with specific military or industrial standards associated with this part number series.

Selection Notes

Select the 1N4626D when a 5.6 V regulation point is required with moderate power handling capabilities. Consider the DO-35 package constraints regarding thermal management and board space. Compare against alternative Zener diodes with tighter voltage tolerances or higher power ratings if the circuit demands exceed the specified 0.4 W dissipation limit or require stricter voltage stability under varying load conditions.

Part Context

This component belongs to the broader family of axial-leaded Zener diodes manufactured by Microchip Technology. These devices are commonly used in general-purpose electronics for simple voltage regulation tasks. The 1N4626D specifically addresses the need for a reliable 5.6 V reference in through-hole designs, offering a balance between performance and cost-effectiveness for standard industrial and commercial applications.

Replacement Considerations

Compatible substitutes include other 5.6 V Zener diodes in the DO-35 package with similar power ratings, such as the 1N4626B or 1N4626C, provided their tolerance specifications meet the design requirements. Verify pinout compatibility and thermal characteristics before substitution.