CDLL5278B

Single Zener Diodes Overview

The CDLL5278B is a Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 160 V with a tolerance of ±5%. The device operates in the DO-213AA (MELF) surface-mount package and supports a maximum power dissipation of 500 mW. It exhibits a maximum reverse leakage current of 100 nA at 120 V and a Zener impedance of 1.7 kOhms at the test current of 1 mA. The component functions within an extended temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at high potential levels using a single-diode configuration.
• Engineered for surface-mount assembly via the compact DO-213AA MELF package.
• Capable of reliable operation across extreme industrial temperature environments.

Single Zener Diodes Applications

• High-voltage reference circuits
• Overvoltage protection stages
• Voltage clamping networks

Single Zener Diodes Procurement Notes

Verify compliance requirements as the component is marked non-RoHS. Confirm package integrity upon receipt, as the MELF form factor requires specific handling protocols during soldering. Ensure design compatibility with the specified thermal dissipation limits and operating temperature range before integration into final assemblies.

Single Zener Diodes Selection Notes

Select this component when a precise 160 V regulation point is required in a surface-mount layout. The DO-213AA package offers space efficiency compared to axial leads. Consider the 500 mW power rating and 1.7 kOhm impedance characteristics to ensure stability under expected load conditions and thermal profiles.

Single Zener Diodes Part Context

This part belongs to the CDLL52xx series of Zener diodes produced by Microchip Technology. These devices are standardized for robust performance in demanding electronic environments. The series utilizes glass-passivated junctions to enhance reliability and withstand mechanical stress during PCB assembly and operational life cycles.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications carefully if considering alternative manufacturers for equivalent voltage and package requirements.