AZ23C4V3-G3-18

Overview

The AZ23C4V3-G3-18 is a dual common anode silicon planar Zener diode array from Vishay. It features a nominal Zener voltage of 4.3 V with a ±5% tolerance, tested at 5 mA. The device has a maximum reverse leakage current of 3 μA and a dynamic resistance of 90 Ω. It operates within a temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. Packaged in a SOT-23-3 surface-mount case, it complies with RoHS standards.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• Silicon planar technology ensuring stable breakdown characteristics
• ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
• Green commercial grade construction compliant with environmental directives

Applications

• Voltage reference circuits requiring dual independent references
• Clamping and protection stages in signal processing paths
• Biasing networks in low-voltage analog applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm reel size and tape specifications. Confirm that the component meets the required AEC-Q101 qualification status if automotive compliance is necessary, as standard versions may not include this certification by default.

Selection Notes

Select this part when a dual common anode topology is required within a compact SOT-23 footprint. Ensure the 4.3 V nominal voltage aligns with the target circuit requirements. Verify thermal management capabilities, as power dissipation drops significantly above ambient temperatures exceeding 75 °C.

Part Context

This component belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers various voltage grades according to the E24 standard, packaged in SOT-23 cases for surface mount assembly. The 'C' designation indicates a standard 5% voltage tolerance.

Replacement Considerations

AZ23B4V3-G3-18 provides a tighter 2% voltage tolerance variant within the same package and series.