AZ23C4V7-E3-08

Overview

The AZ23C4V7-E3-08 is a dual common anode silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 4.7 V with a ±5% tolerance, tested at a current of 5 mA. The device has a maximum dynamic resistance of 78 Ω and a reverse leakage current of 3 μA at 3.3 V. Rated for a power dissipation of 300 mW on an FR-4 board, it operates within a temperature range of -55 °C to +150 °C. Packaged in a surface-mount SOT-23-3 housing, this component is supplied in reels of 3000 units.

Feature Summary

• Dual common anode configuration providing two independent Zener references in a single package
• Zener voltages graded according to the international E24 standard for precise selection
• ESD protection capability exceeding 8 kV via human body model and 800 V via machine model

Applications

• Voltage reference circuits requiring dual stable potentials
• Overvoltage protection stages for sensitive signal lines
• Clamping applications in low-power electronic systems

Procurement Notes

Verify that the ordering code matches the required voltage tolerance and packaging format. Confirm RoHS compliance status and ensure the supplier provides original manufacturer documentation. Validate the specific suffix against the official Vishay ordering guide to guarantee correct electrical characteristics and reel specifications.

Selection Notes

Select this part when a dual Zener array is needed in a compact SOT-23 footprint. Ensure the operating current aligns with the 5 mA test condition for optimal voltage accuracy. Consider the thermal resistance values if the application involves high ambient temperatures or limited board space for heat dissipation.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes from Vishay Semiconductors. The series offers a wide range of Zener voltages from 2.2 V to 75 V in both 5% and 2% tolerance grades. These devices are designed for general-purpose voltage regulation and clamping tasks in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other AZ23C4V7 variants such as AZ23C4V7-G3-08 or AZ23C4V7-E3-18, which share identical electrical parameters but differ in packaging quantity. Cross-brand replacements must match the 4.7 V nominal voltage, SOT-23-3 package, and common anode configuration.