AZ23B56-G3-08

Overview

The Vishay AZ23B56-G3-08 is a dual common anode small signal Zener diode array housed in a SOT-23 surface-mount package. It features a nominal Zener voltage of 56 V with a tight tolerance of ±2%. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board, with a maximum junction temperature of 150 °C. Electrical characteristics include a reverse leakage current of 50 μA maximum and a dynamic resistance of 135 Ω at the test current.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• Tight ±2% Zener voltage tolerance for precision applications
• Silicon planar construction ensuring robust performance

Applications

• Voltage reference circuits requiring precise dual rails
• Overvoltage protection for sensitive electronic components
• Clamping applications in signal processing paths

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm tape and reel specifications. Ensure that the procurement channel sources genuine Vishay Semiconductors products to maintain compliance with RoHS directives and material categorization standards defined in the official datasheet.

Selection Notes

Select this component when a dual Zener array with high voltage accuracy is required in a compact footprint. The ±2% tolerance distinguishes it from standard ±5% variants. Evaluate thermal management requirements carefully, as power dissipation drops significantly above ambient temperatures exceeding 75 °C.

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 Zener voltages from 2.2 V to 75 V in a standardized SOT-23 package, providing designers with consistent mechanical dimensions across various voltage options.

Replacement Considerations

Direct replacements within the same family include AZ23C56-G3-08 (±5% tolerance) or other AZ23B56 variants with different packaging suffixes such as -18. Cross-brand equivalents require careful verification of pinout compatibility and electrical parameter margins.