AZ23B9V1-G3-18

Overview

The AZ23B9V1-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 9.1 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 0.1 μA at 7 V and a dynamic resistance of 10 Ω at 1 mA. It supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• Tight ±2 % Zener voltage tolerance for precision regulation
• High ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
• Lead-free construction compliant with RoHS standards

Applications

• Voltage reference circuits requiring precise dual rails
• ESD protection for sensitive signal lines
• Overvoltage clamping in low-power consumer electronics

Procurement Notes

Verify the specific ordering suffix '-18' to confirm the 10,000-unit reel packaging format. Ensure the 'B' designation matches the required ±2 % voltage tolerance rather than the standard ±5 %. Confirm compliance with material categorization definitions via official Vishay documentation before finalizing procurement specifications.

Selection Notes

Select this component when a dual Zener array with high voltage accuracy is required in a compact SOT-23 footprint. The 9.1 V nominal rating suits applications needing stable reference voltages near the 9 V threshold. Consider the 300 mW power dissipation limit on FR-4 boards during thermal design to ensure reliable operation within the specified temperature range.

Part Context

This part belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of graded Zener voltages from 2.2 V to 75 V. The 'B' suffix indicates the tighter ±2 % tolerance variant, while the 'G3' denotes lead-free, green commercial grade construction.

Replacement Considerations

AZ23C9V1-G3-18: Offers identical physical dimensions but with a wider ±5 % voltage tolerance instead of ±2 %.