CDLL5302

Current Regulation - Diodes, Transistors Overview

The CDLL5302 is a Zener diode manufactured by Microchip Technology, designed for voltage regulation and reference applications. It features a nominal Zener voltage of 18 V with a tolerance of 5%. The device operates within a wide temperature range from -65°C to +175°C and is housed in the DO-213AA-2 surface-mount package. Key electrical characteristics include a maximum reverse leakage current of 1 µA at the rated voltage and a Zener impedance of 40 Ohms measured at a test current of 5 mA. The component supports a maximum forward current of 200 mA and has a power dissipation rating suitable for general-purpose circuit protection.

Current Regulation - Diodes, Transistors Feature Summary

• Provides stable voltage regulation with tight 5% tolerance for precision reference circuits
• Operates reliably across an extended industrial temperature range up to 175°C
• Features low reverse leakage current to minimize power loss in high-impedance applications

Current Regulation - Diodes, Transistors Applications

• Voltage reference sources in precision measurement equipment
• Overvoltage protection circuits for sensitive semiconductor inputs
• Clamping diodes in signal conditioning pathways

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix and tape-and-reel or bulk packaging configuration against the manufacturer's latest datasheet before ordering. Confirm that the DO-213AA-2 footprint matches the target PCB design. Ensure compliance with RoHS directives if required by the end application standards. Cross-reference the part number with official Microchip distribution channels to avoid counterfeit components.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a fixed 18 V reference is required in a compact surface-mount form factor. Consider the 40 Ohm impedance value for dynamic load requirements. Evaluate the thermal performance within the enclosed system environment given the 175°C maximum junction temperature limit. Compare leakage specifications against alternative packages if ultra-low current drain is critical.

Current Regulation - Diodes, Transistors Part Context

The CDLL5302 belongs to the CDLL series of hermetically sealed glass-passivated Zener diodes from Microchip Technology. This series is engineered for high reliability in military and aerospace environments. The DO-213AA-2 package provides a small outline footprint while maintaining robust mechanical stability. It complements other voltage reference devices in the Microchip portfolio for complete power management solutions.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes must match the 18 V Zener voltage, 5% tolerance, and DO-213AA-2 package. Verify equivalent Zener impedance and leakage current specifications. Check for compatible operating temperature ranges and pinout compatibility. Consult Microchip documentation for approved alternate part numbers within the same product family.