AZ23C4V7-G3-18

Overview

The AZ23C4V7-G3-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23-G series, housed in an SOT-23 package. It features a nominal Zener voltage of 4.7 V with a ±5% tolerance and a maximum reverse leakage current of 3 µA at 17 V. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a dynamic resistance of 78 Ω at a test current of 5 mA and a temperature coefficient ranging from -5 to 2 × 10⁻⁴/°C.

Feature Summary

• Dual common anode configuration for integrated circuit protection
• Graded Zener voltages according to international E24 standard
• ESD capability exceeding 8 kV (HBM) and 800 V (MM)
• Green commercial grade material categorization

Applications

• Voltage reference circuits
• Transient voltage suppression
• Clamping applications in signal lines

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's document number 86339 and revision 1.2 against official Vishay channels. Confirm that the ordering suffix matches the required tape and reel specifications for automated assembly processes.

Selection Notes

Select this part when a dual common anode topology is required for bidirectional clamping or independent reference generation. Ensure the operating environment remains within the specified thermal limits to maintain the 300 mW power dissipation rating on standard PCB footprints.

Part Context

This component belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series provides a wide range of graded voltage options in a compact surface-mount footprint suitable for high-density electronic assemblies.

Replacement Considerations

AZ23B4V7-G3-18 offers a tighter ±2% voltage tolerance while maintaining identical electrical ratings and physical dimensions.