CDLL4121/TR

Single Zener Diodes Overview

The CDLL4121/TR is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications in the DO-213AA-2 package. It features a nominal Zener voltage of 33 V with a tolerance of ±5%. The device supports a power dissipation of 500 mW and operates within a temperature range of -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 10 nA, a Zener impedance of 200 Ohms, and a test current of 250 µA. The forward current rating is 200 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at 33 V with high precision tolerance
• Engineered for surface-mount integration using compact DO-213AA-2 packaging
• Capable of reliable operation across an extended industrial temperature spectrum

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in sensitive electronic systems
• Clamping applications for signal line stabilization

Single Zener Diodes Procurement Notes

Verify the specific suffix designation to confirm the reel packaging configuration, as standard variants may differ in shipping format. Ensure the DO-213AA-2 footprint matches the target PCB design constraints. Cross-reference the manufacturer part number against official Microchip databases to validate authenticity and current production status before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 33 V regulation point is required in a space-constrained surface-mount layout. The low leakage current and defined impedance make it suitable for precision analog interfaces. Consider the thermal management requirements associated with the 500 mW dissipation limit in enclosed environments.

Single Zener Diodes Part Context

This device belongs to Microchip's series of single Zener diodes optimized for surface-mount technology. The DO-213AA-2 package offers a small form factor compared to traditional axial leads, facilitating automated assembly processes. These components are integral to modern mixed-signal designs where board real estate is limited.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 33 V Zener voltage, 500 mW power rating, and DO-213AA-2 package dimensions. Verify that alternative sources maintain identical electrical tolerances and temperature ranges to ensure circuit compatibility without redesign.