CDLL5247

Single Zener Diodes Overview

The CDLL5247 is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 17 V with a tolerance of ±10%. The device utilizes a DO-213AB MELF package and supports an operating temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 100 nA at 13 V and a maximum Zener impedance of 19 Ohms. The forward voltage is specified as 1.1 V at a forward current of 200 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 17 V Zener breakdown.
• Engineered for high-temperature reliability across a wide industrial range.
• Utilizes a leadless MELF package for compact surface-mount integration.

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., A, BE3, TR) when ordering, as these indicate variations in tolerance, RoHS compliance, or packaging format. Confirm the exact datasheet version matches the required electrical parameters, particularly regarding leakage current and impedance specifications. Ensure the selected variant aligns with the intended thermal and environmental operating conditions.

Single Zener Diodes Selection Notes

Select this component for designs requiring a robust 17 V reference in harsh environments. The wide temperature range makes it suitable for automotive or industrial use. Consider the ±10% tolerance for general regulation tasks. Evaluate the MELF package constraints against available PCB real estate and soldering capabilities during the design phase.

Single Zener Diodes Part Context

This part belongs to the CDLL52xx series of leadless Zener diodes from Microchip Technology. These devices are characterized by their metallurgically bonded construction and double plug design, offering superior stability compared to standard glass-passivated diodes. The series covers various voltage ratings within the same physical footprint.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 17 V Zener diodes in the DO-213AB/MELF package with comparable impedance and leakage specs. Verify pinout compatibility and thermal derating curves before substitution. Cross-reference with Microchip's official replacement guide for qualified alternatives.