CDLL4463/TR

Single Zener Diodes Overview

The CDLL4463/TR is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 8.2 V with a power dissipation rating of 1.5 W. The component utilizes the DO-213AB (SMB) package and operates within a temperature range of -65 °C to +175 °C. Key electrical specifications include a maximum reverse leakage current of 500 nA and a Zener impedance of 20 Ohms at a test current of 76 mA. The device is supplied in a reel packaging format.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 8.2 V Zener potential
• Supports high power dissipation up to 1.5 W for robust performance
• Engineered for extended thermal operation from -65 °C to +175 °C
• Utilizes low-leakage design characteristics for precision control

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Over-voltage protection stages in power supplies
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify the specific datasheet revision and exact electrical tolerances against the manufacturer's official documentation before integration. Confirm that the DO-213AB footprint matches the PCB layout requirements. Ensure thermal management strategies account for the 1.5 W power dissipation capability under worst-case operating conditions to maintain reliability.

Single Zener Diodes Selection Notes

Select this component when a 1.5 W power rating is necessary for Zener regulation in compact surface-mount designs. The wide operating temperature range makes it suitable for industrial environments. Compare the 8.2 V nominal voltage and 500 nA leakage specifications against circuit requirements to ensure compatibility with sensitive downstream components.

Single Zener Diodes Part Context

This part belongs to the CDLL44 series of axial-to-surface-mount equivalent Zener diodes produced by Microchip Technology. These devices are designed to replace traditional through-hole axial packages while maintaining similar electrical characteristics in a smaller SMB footprint. The series offers various voltage options for diverse regulation needs.

Single Zener Diodes Replacement Considerations

Direct substitutes may include other Microchip CDLL4463 variants or equivalent 8.2 V, 1.5 W Zener diodes in the DO-213AB package from other manufacturers, provided pinout and electrical parameters match.