AZ23B5V1-G3-18

Overview

The AZ23B5V1-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 references with a nominal voltage of 5.1 V and a tight tolerance of ±2%. The device operates at a test current of 5 mA, featuring a maximum reverse leakage current of 0.1 µA and a dynamic resistance of 60 Ω. It supports an operating temperature range from -55 °C to +150 °C and dissipates up to 300 mW on a standard FR-4 board.

Feature Summary

• Dual common anode configuration for compact circuit integration
• Tight ±2% Zener voltage tolerance for precision applications
• High ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
• Green commercial grade construction compliant with RoHS standards

Applications

• Precision voltage reference circuits requiring dual channels
• ESD protection interfaces for sensitive signal lines
• Voltage clamping and regulation in low-power 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% tolerance specification. Confirm that the component meets the intended environmental and thermal requirements for the final assembly process.

Selection Notes

Select this part when a dual-channel solution with high voltage accuracy is needed. The ±2% tolerance distinguishes it from the standard ±5% 'C' series variants. Consider the 60 Ω dynamic resistance and 0.1 µA leakage limits against circuit sensitivity requirements before finalizing the design.

Part Context

This component belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series utilizes silicon planar technology and offers a wide range of graded voltages according to the E24 standard within the same footprint family.

Replacement Considerations

Publicly confirmed substitutes include AZ23B5V1-E3-18 and AZ23B5V1-HE3-18. These alternatives maintain the identical electrical characteristics and pinout while differing primarily in the manufacturing compliance suffixes.