AZ23C15-G3-18

Overview

The AZ23C15-G3-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23-G series, housed in a SOT-23 surface-mount package. It provides two independent Zener elements sharing a common anode terminal. The nominal Zener voltage is 15 V with a ±5% tolerance, tested at a current of 5 mA. Key electrical parameters include a maximum reverse leakage current of 0.05 µA and a dynamic resistance of 11 Ω at the test current. The device supports a junction temperature up to 150 °C and operates within a range of -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for space-efficient circuit design
• Zener voltages graded according to international E24 standard
• ESD capability exceeding 8 kV (human body model) and 800 V (machine model)
• Lead-free construction compliant with RoHS directives

Applications

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

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's part number against official Vishay documentation. Confirm that the ordering suffix matches the required reel quantity and tape specifications. Ensure compliance with environmental standards such as RoHS and material categorization requirements before finalizing procurement orders.

Selection Notes

Select this variant when a dual common anode topology is required with a 15 V nominal breakdown voltage. The 'C' designation indicates a standard ±5% tolerance; use the 'B' suffix if tighter ±2% accuracy is necessary. Verify that the SOT-23 footprint aligns with the PCB layout constraints and that the thermal dissipation characteristics meet the application's power requirements.

Part Context

This component belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of Zener voltages from 2.2 V to 75 V in both common anode and common cathode configurations. These devices are designed for general-purpose switching and clamping applications in commercial electronics.

Replacement Considerations

Direct substitutes within the same family include AZ23B15-G3-18 for tighter tolerance or AZ23C15-G3-08 for different reel packaging. Cross-manufacturer equivalents should be evaluated based on pinout compatibility, voltage tolerance, and package dimensions.