AZ23B16-G3-18

Overview

The AZ23B16-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 diodes sharing a common anode terminal. The nominal Zener voltage is 16 V with a tight tolerance of ±2%. Electrical characteristics are defined at a test current of 5 mA, featuring a maximum reverse leakage current of 0.05 µA and a dynamic resistance of 40 Ω. The device supports a continuous power dissipation of 300 mW on FR-4 boards and operates within a temperature range of -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for space-efficient circuit design
• Tight voltage tolerance of ±2% for precision regulation applications
• High ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
• Lead-free construction compliant with RoHS standards

Applications

• Voltage reference circuits requiring precise dual rails
• Transient voltage suppression in signal conditioning paths
• Over-voltage protection for low-power electronic modules

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 environmental compliance standards for the target application. Ensure proper handling procedures are followed during assembly to maintain the integrity of the surface-mount package.

Selection Notes

Select this component when a dual Zener configuration with high voltage accuracy is required in a compact footprint. The ±2% tolerance distinguishes it from standard ±5% variants. Evaluate the thermal resistance parameters to ensure adequate heat dissipation under maximum operating conditions. Verify compatibility with automated pick-and-place equipment due to the SOT-23 form factor.

Part Context

This part belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of Zener voltages from 2.2 V to 75 V. The 'B' designation indicates the tighter ±2% voltage tolerance grade, while the '-G3' suffix denotes green, lead-free commercial grade packaging.

Replacement Considerations

AZ23B16-E3-18