DZ23C3V9-G3-18

Overview

The DZ23C3V9-G3-18 is a dual common cathode silicon planar Zener diode array from the Vishay DZ23-G series, housed in an SOT-23 surface-mount package. It provides two independent Zener elements with a nominal voltage of 3.9 V and a tolerance of ±5 %. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a reverse leakage current of 3 μA maximum at 3 V and a dynamic resistance of 90 Ω at a test current of 5 mA.

Feature Summary

• Dual common cathode configuration for space-efficient circuit design
• Silicon planar technology ensuring stable voltage regulation
• ESD protection capability exceeding 8 kV via human body model

Applications

• Voltage reference circuits requiring dual regulated rails
• Overvoltage protection for sensitive input lines
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm reel specifications and tape dimensions. Ensure that the procurement channel sources components directly from authorized distributors to maintain compliance with RoHS directives and material categorization standards defined by Vishay.

Selection Notes

Select this component when a dual Zener array is required in a compact SOT-23 footprint. Confirm that the 3.9 V nominal voltage aligns with the target circuit requirements and that the ±5 % tolerance meets the precision needs of the application without necessitating tighter grading.

Part Context

This part belongs to the DZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of graded voltages from 2.2 V to 75 V, all utilizing the same SOT-23 package format to facilitate standardized PCB layouts across various voltage levels.

Replacement Considerations

Direct replacements within the same family include other DZ23C variants with different voltage ratings but identical packaging and electrical configurations. Cross-brand equivalents must be verified for matching pinout, thermal resistance, and ESD performance capabilities.