AZ23B2V4-E3-08

Overview

The AZ23B2V4-E3-08 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a surface-mount SOT-23 package. It provides two independent voltage regulation channels sharing a single anode terminal. The nominal Zener voltage is 2.4 V with a tight tolerance of ±2%. Electrical testing occurs at a test current of 5 mA, yielding a maximum dynamic resistance of 100 Ω and a reverse leakage current not exceeding 1 μA. The device supports a maximum power dissipation of 300 mW on standard FR-4 boards and operates reliably within a temperature range of -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for space-efficient circuit design
• Tight ±2% Zener voltage tolerance for precision applications
• ESD protection capability exceeding 8 kV via human body model
• RoHS-compliant commercial grade construction

Applications

• Precision voltage reference circuits requiring dual rails
• Over-voltage protection for sensitive input lines
• Clamping networks in signal conditioning paths

Procurement Notes

Verify component authenticity by cross-referencing the ordering code against official Vishay documentation. Confirm that the specific suffix matches the required tape-and-reel quantity and packaging specifications. Ensure compliance with RoHS directives and material categorization standards before finalizing procurement orders.

Selection Notes

Select this variant when a precise 2.4 V regulation point is required alongside a secondary channel. The ±2% tolerance distinguishes it from standard ±5% devices. Verify that the low dynamic resistance and leakage characteristics meet the specific noise and accuracy requirements of the target application environment.

Part Context

This component belongs to the broader AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series encompasses various voltage ratings and tolerance grades, all utilizing the same compact SOT-23 footprint. This specific part represents the high-precision subset designed for applications demanding tighter voltage stability than standard commercial variants.

Replacement Considerations

Direct parameter-equivalent replacements include other AZ23B2V4 variants with different packaging suffixes, such as AZ23B2V4-E3-18 or AZ23B2V4-HE3_A-08. Substitutions must maintain the dual common anode topology and ±2% tolerance specification to ensure functional compatibility.