AZ23B20-G3-18

Overview

The AZ23B20-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 features a nominal Zener voltage of 20 V with a tight ±2% tolerance. The device operates at a test current of 5 mA and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a maximum reverse leakage current of 0.05 µA at 15 V and a dynamic resistance of 50 Ω at 1 kHz.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• Tight ±2% Zener voltage tolerance for precision applications
• ESD protection exceeding 8 kV (HBM) and 800 V (MM)
• RoHS compliant green commercial grade construction

Applications

• Voltage reference circuits requiring dual rails
• Transient voltage suppression arrays
• Precision analog signal conditioning

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm reel size and tape specifications. Ensure that the component meets the required environmental standards and material categorization definitions provided in the official datasheet before finalizing procurement orders.

Selection Notes

Select this part when a dual Zener array with high voltage accuracy is needed in a compact footprint. The ±2% tolerance distinguishes it from standard ±5% variants. Confirm that the operating temperature range of -55 °C to +150 °C aligns with the system's thermal 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 graded voltages from 2.2 V to 75 V in a standardized SOT-23 package suitable for automated surface-mount assembly processes.

Replacement Considerations

Parametric equivalents within the same series include AZ23B20-E3-18 and AZ23B20-G3-08. Verify pinout compatibility and electrical tolerances before substituting.