CDLL4779A

Single Zener Diodes Overview

The CDLL4779A is a temperature-compensated Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 8.5 V with a tolerance of ±5%. The device operates in the DO-213AA-2 surface-mount package, supporting a maximum power dissipation of 500 mW. Electrical characteristics include a maximum reverse leakage current of 10 µA and a Zener impedance of 200 Ohms at a test current of 500 µA. The component maintains a low voltage temperature coefficient of 0.0005 %/°C, ensuring stability across an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Temperature compensated design for enhanced voltage stability
• Single configuration suitable for precision regulation
• Leadless MELF-style surface mount construction

Single Zener Diodes Applications

• Precision voltage reference circuits
• Temperature stable regulator designs
• Overvoltage protection in sensitive electronics

Single Zener Diodes Procurement Notes

Verify the specific suffix designation upon ordering, as packaging formats vary between reel and bulk configurations within this product line. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as indicated specifications may differ based on production batch and regional regulatory requirements. Ensure the selected variant matches the required thermal and electrical parameters for the target application environment.

Single Zener Diodes Selection Notes

Select this component when a stable 8.5 V reference is required under varying thermal conditions. The low temperature coefficient makes it superior to standard Zener diodes for high-precision applications. Verify that the 500 mW power rating accommodates the maximum expected dissipation in the circuit layout. Consider the DO-213AA-2 package dimensions for PCB footprint compatibility during the design phase.

Single Zener Diodes Part Context

This part belongs to the CDLL477x series of temperature-compensated Zener diodes produced by Microchip Technology. These devices utilize double plug construction and metallurgically bonded leads to achieve superior performance compared to conventional Zener diodes. The series is designed for applications requiring high accuracy and long-term reliability in harsh environments.

Single Zener Diodes Replacement Considerations

Consult official substitution guides for compatible alternatives. Cross-referencing requires matching Zener voltage, tolerance, package type, and temperature coefficient specifications to ensure functional equivalence in the existing circuit design.