CDLL5229B/TR

Single Zener Diodes Overview

The CDLL5229B/TR is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 4.3 V with a tolerance of 5%. The device operates within a temperature range of -65°C to +175°C and utilizes the DO-213AA-2 (SOD-80) package. Key electrical characteristics include a maximum reverse leakage current of 5 uA, a Zener impedance of 22 Ohms at a test current of 20 mA, and a forward voltage of 900 mV at 200 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 4.3 V Zener breakdown.
• Engineered for high-temperature reliability with an operating range up to 175°C.
• Utilizes a compact SMD package suitable for automated surface-mount assembly.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise low-voltage regulation.
• Over-voltage protection in sensitive electronic systems.
• Clamping applications in signal processing paths.

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified suppliers. Confirm that the specific part number matches the required 4.3 V specification and DO-213AA-2 package type. Ensure compliance with project requirements regarding RoHS status and manufacturing origin before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a reliable 4.3 V reference is needed in a small form factor. Consider the 5% voltage tolerance and 22 Ohm impedance for circuit accuracy. The wide temperature range makes it suitable for industrial environments where standard commercial-grade parts may fail.

Single Zener Diodes Part Context

This part belongs to the CDLL5229 series of leadless MELF-style Zener diodes. It shares the same physical footprint as other devices in the DO-213AA family but offers specific voltage and performance characteristics tailored for precision regulation tasks in compact electronic designs.

Single Zener Diodes Replacement Considerations

Check for direct substitutes such as the CDLL5229B without the trailing slash if reel packaging is not strictly required. Verify equivalent specifications from other manufacturers like Nexperia or Vishay, ensuring matching voltage, package, and thermal ratings.