DZ23C18-G3-08

Overview

The DZ23C18-G3-08 is a silicon planar Zener diode from Vishay's DZ23-G series, housed in an SOT-23 package. It features a nominal Zener voltage of 18 V with a standard tolerance of ±5 %. The device operates at a test current (IZT) of 5 mA and exhibits a dynamic resistance (ZZK) of 45 Ω under these conditions. Maximum reverse leakage current is specified at 0.05 μA when tested at 10 V. The component supports a power dissipation of up to 500 mW and functions within a junction temperature range of -55 °C to +150 °C.

Feature Summary

• Silicon planar construction for reliable small-signal regulation
• Graded Zener voltages aligned with the international E24 standard
• Green commercial grade material composition compliant with environmental standards

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection for sensitive electronic components
• Clamping applications in signal processing paths

Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure correct voltage grading and packaging configuration. Confirm that the required tape and reel dimensions match the production line specifications. Cross-reference the document revision date to access the most current electrical characteristics and mechanical drawings before finalizing procurement orders.

Selection Notes

Select this component based on the required nominal Zener voltage and the acceptable tolerance band for the target application. Ensure the operating current remains within the specified test current limits to maintain accuracy. Verify that the thermal management design accommodates the maximum power dissipation ratings under worst-case ambient temperature conditions.

Part Context

This part belongs to the DZ23-G series of small signal Zener diodes manufactured by Vishay General Semiconductor. The series offers a wide range of standardized voltage options in compact surface-mount packages. The G3 suffix indicates compliance with green manufacturing standards, while the 08 suffix denotes taping on 7-inch reels for automated assembly processes.

Replacement Considerations

Direct replacements must match the 18 V nominal voltage, SOT-23 package outline, and equivalent electrical parameters such as dynamic resistance and leakage current. Verify compatibility with existing PCB footprints and thermal requirements. Consult the manufacturer's official substitution guide for validated alternative part numbers.