AZ23B3V0-G3-18

Overview

The AZ23B3V0-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 provides two independent Zener diodes sharing a common anode terminal. The nominal Zener voltage is 3.0 V with a tight tolerance of ±2%, specified at a test current of 5 mA. Key electrical parameters include a maximum reverse leakage current of 10 µA and a dynamic resistance of 95 Ω at the test current. The device supports an operating temperature range from -55 °C to +150 °C and is rated for 300 mW power dissipation on an FR-4 board.

Feature Summary

• Dual common anode configuration integrating two Zener diodes into a single compact footprint
• High precision voltage grading with ±2% tolerance for stable reference applications
• Robust thermal performance supporting operation up to +150 °C junction temperature
• Compliant with RoHS standards and manufactured using green commercial grade materials

Applications

• Voltage clamping and protection circuits requiring precise low-voltage references
• Signal conditioning and waveform shaping in analog processing stages
• Overvoltage protection for sensitive input lines in consumer electronics

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number against official Vishay documentation. Confirm that the ordering suffix matches the required tape-and-reel quantity and packaging specifications. Ensure compliance with environmental directives such as RoHS before finalizing procurement orders.

Selection Notes

Select this variant when a dual Zener array with a 3.0 V nominal voltage and ±2% tolerance is required. The SOT-23 package is suitable for space-constrained surface-mount designs. Verify that the 95 Ω dynamic resistance meets the circuit's impedance requirements at the intended operating current.

Part Context

This component belongs to the AZ23-G series of small signal Zener diodes. The series offers a wide range of standard E24 voltages from 2.2 V to 75 V. The 'B' designation indicates the tighter ±2% tolerance band compared to the standard ±5% 'C' variants. The '-G3' suffix denotes lead-free construction compliant with RoHS directives.

Replacement Considerations

Direct substitutes within the same family include AZ23B3V0-E3-18 and AZ23B3V0-HE3-18, which share identical electrical characteristics but differ in specific manufacturing or qualification details.