AZ23B3V9-G3-08

Overview

The AZ23B3V9-G3-08 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 3.9 V with a tight tolerance of ±2%. The device operates at a test current of 5 mA and exhibits a maximum reverse leakage current of 1 μA at 3 V. Electrical characteristics include a dynamic resistance (ZZ) of 90 Ω and a temperature coefficient ranging from -7 to -3 × 10⁻⁴/°C. It supports a junction temperature up to 150 °C and complies with RoHS standards.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• Tight ±2% Zener voltage tolerance for precision regulation
• ESD protection exceeding 8 kV human body model standard
• Lead-free construction compliant with green commercial grade specifications

Applications

• Precision voltage reference circuits requiring stable low-voltage regulation
• Overvoltage protection stages in sensitive signal processing paths
• Clamping applications in portable electronic devices

Procurement Notes

Verify component authenticity by cross-referencing the ordering code against official Vishay documentation. Confirm that the specific suffix matches the required tolerance and packaging format. Ensure compliance with environmental directives such as RoHS before integration into final assemblies.

Selection Notes

Select this variant when a precise 3.9 V regulation point is required with minimal deviation. The dual common anode structure allows independent control of two voltage references within a single footprint. Verify that the operating current aligns with the specified 5 mA test condition for optimal performance.

Part Context

This component belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay General Semiconductor. The series offers a wide range of graded voltages from 2.2 V to 75 V across various tolerance grades. The AZ23B3V9-G3-08 specifically represents the high-precision B-grade option within the 3.9 V category.

Replacement Considerations

Direct substitutes within the same family include AZ23B3V6-G3-08 (3.6 V) and AZ23B4V3-G3-08 (4.3 V). For identical electrical parameters but different packaging, consider variants ending in -18.