CDLL5231A

Single Zener Diodes Overview

The CDLL5231A is a surface-mount Zener diode manufactured by Microchip Technology, designed for voltage regulation and protection applications. It features a nominal Zener voltage of 5.1 V with a tolerance of ±10%. The device operates within an extended temperature range from -65 °C to +175 °C. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 17 Ohms at a test current of 20 mA. It is housed in the DO-213AA (SOD-323) package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using Zener breakdown principles
• Capable of operation in extreme ambient temperatures up to 175 °C
• Designed for compact surface-mount integration

Single Zener Diodes Applications

• Voltage reference circuits
• Over-voltage protection stages
• Clamping applications in signal lines

Single Zener Diodes Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm exact tolerance and packaging variations. Ensure the ordering part number matches the required Zener voltage and package type. Cross-reference datasheet revisions to confirm compliance with RoHS directives and material declarations before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a precise 5.1 V reference is required in space-constrained designs. Consider the low leakage current and high operating temperature rating for reliability in harsh environments. Evaluate the Zener impedance value to ensure it meets the dynamic regulation requirements of the target circuit application.

Single Zener Diodes Part Context

This component belongs to the Microchip Technology CDLL5231 series of Zener diodes. These devices are engineered for general-purpose voltage regulation tasks. The series offers various voltage options within a standardized surface-mount footprint, allowing designers to maintain consistent board layouts across different voltage reference requirements.

Single Zener Diodes Replacement Considerations

Direct substitutes include the CDLL5231B variant, which shares the same package but differs in Zener voltage specifications. Verify pinout compatibility and thermal performance characteristics when evaluating alternative manufacturers or updated series revisions.