BZX84C18-7-F-79

Single Zener Diodes Overview

The BZX84C18-7-F-79 is a surface-mount Zener diode manufactured by Diodes Incorporated, housed in an SOT-23-3 package. It features a nominal Zener voltage of 18V with a power dissipation rating of 300mW (0.35W). The device exhibits a reverse leakage current of 100nA and operates within a temperature range of -65°C to +150°C. Designed for compact circuit applications, it provides stable voltage regulation in small form-factor designs.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation at 18V nominal potential
• Compact SOT-23-3 surface-mount packaging for space-constrained layouts
• High thermal stability supporting operation up to 150°C junction temperature

Single Zener Diodes Applications

• Voltage reference circuits requiring stable 18V levels
• Over-voltage protection stages in portable electronics
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify the exact suffix designation against the manufacturer's official documentation to confirm specific tape-and-reel or cut-tape configurations. Ensure that the ordering code matches the required packaging format for automated assembly processes. Cross-reference the component marking with the datasheet to authenticate the source and prevent counterfeit substitution during procurement.

Single Zener Diodes Selection Notes

Select this component when a low-profile Zener diode is required for 18V regulation in SOT-23-3 compatible footprints. Consider the 300mW power rating for thermal management in dense PCB layouts. Verify that the 100nA leakage current meets the sensitivity requirements of the specific application circuit before finalizing the design.

Single Zener Diodes Part Context

This part belongs to the BZX84 series of single Zener diodes from Diodes Incorporated. The series is characterized by its use in general-purpose voltage regulation and protection roles. The SOT-23-3 package allows for high-density mounting on printed circuit boards, making it suitable for modern consumer and industrial electronic devices requiring reliable voltage clamping.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 18V Zener diodes in SOT-23 packages from different manufacturers, provided they match the 300mW power dissipation and 18V nominal voltage specifications. Verify pinout compatibility and thermal characteristics before implementing any alternative component in the existing design.