CDLL5228A

Single Zener Diodes Overview

The CDLL5228A is a Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 3.9 V with a tolerance of ±10%. The device operates within a maximum power dissipation of 500 mW and utilizes the DO-213AB (MELF) package. Electrical characteristics include a reverse leakage current of 10 µA at the rated voltage and a forward voltage of approximately 1.1 V at 200 mA. The component supports an operating temperature range from -65°C to 175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at a nominal 3.9 V level
• Engineered for surface-mount integration using MELF packaging
• Capable of handling up to 500 mW power dissipation
• Operates reliably across extended industrial temperature ranges

Single Zener Diodes Applications

• Voltage reference circuits in embedded systems
• Overvoltage protection for sensitive input lines
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify RoHS compliance status prior to procurement, as specific listings indicate non-compliance for this part number. Confirm availability through authorized distributors, noting that some sources classify the item as discontinued while others report stock. Ensure the ordering suffix matches the required tape-and-reel or bulk configuration if applicable, and validate the manufacturer date code against project requirements.

Single Zener Diodes Selection Notes

Select the CDLL5228A when a precise 3.9 V reference is required in a compact surface-mount form factor. Consider its 500 mW power rating for thermal management in dense layouts. Evaluate the ±10% tolerance against circuit sensitivity requirements. Compare performance metrics such as leakage current and impedance against alternative Zener diodes if tighter voltage regulation or lower noise is necessary for the specific application design.

Single Zener Diodes Part Context

This component belongs to Microchip Technology's discrete semiconductor portfolio, specifically within the Zener diode category. It is part of the CDLL series, which offers small-form-factor solutions for voltage regulation and protection tasks. The device complements Microchip's broader range of analog and mixed-signal components used in industrial and consumer electronics.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult Microchip's official comparable part resources or datasheets for verified alternatives.