CDLL5540D/TR

Single Zener Diodes Overview

The CDLL5540D/TR is a single Zener diode manufactured by Microchip Technology, designed for surface mount applications in the DO-213AA package. It features a nominal Zener voltage of 20 V with a tight tolerance of ±1%. The device supports a maximum power dissipation of 500 mW and operates within an extended temperature range of -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 10 nA at 18 V, a forward voltage of 1.1 V at 200 mA, and a maximum Zener impedance of 100 Ohms.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with high stability due to ±1% voltage tolerance.
• Capable of operation in extreme environments with a wide thermal range from -65°C to +175°C.
• Utilizes a compact surface mount DO-213AA package for efficient board space utilization.

Single Zener Diodes Applications

• Voltage reference circuits requiring high precision
• Overvoltage protection in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify that the specific suffix D indicates the ±1% tolerance variant, as other suffixes may denote different tolerances. Confirm the DO-213AA package dimensions match your PCB footprint requirements. Ensure the manufacturer documentation specifies the exact test conditions for leakage and impedance parameters relevant to your design constraints.

Single Zener Diodes Selection Notes

Select this component when strict voltage accuracy is required compared to standard ±5% or ±10% variants. Consider the low leakage current specification for high-impedance circuit designs. Evaluate the thermal management capabilities of the DO-213AA package against the expected power dissipation in your specific application environment.

Single Zener Diodes Part Context

This part belongs to the Microchip CDLL5540 series of hermetically sealed glass passivated Zener diodes. These components are engineered for reliability in demanding environments, often serving as replacements for traditional axial leaded devices in modern surface mount assemblies while maintaining robust performance characteristics.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers: JAN1N5540DUR-1/TR, JANTX1N5540DUR-1, JANTXV1N5540DUR-1.