AZ23B30-E3-18

Overview

The AZ23B30-E3-18 is a dual common-anode Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 30 V with a tight tolerance of ±2%. The device operates within a test current range of 2 mA to 5 mA and exhibits a maximum reverse leakage current of 50 µA at 22 V. Dynamic resistance is specified at 80 Ω, while the temperature coefficient ranges from 8 to 10 x 10⁻⁴/°C. Rated for a maximum power dissipation of 300 mW on an FR-4 board, it functions reliably across an operating temperature range of -55 °C to +150 °C in a compact SOT-23 surface-mount package.

Feature Summary

• Dual common-anode configuration providing two independent Zener references in a single package
• High precision ±2% voltage tolerance for accurate reference applications
• Robust ESD protection exceeding 8 kV via human body model and 800 V via machine model
• RoHS-compliant commercial grade construction without automotive qualification

Applications

• Precision voltage reference circuits requiring dual stable potentials
• Overvoltage protection stages for sensitive signal lines
• Clamping networks in high-speed digital interfaces
• Bias stabilization in analog sensor conditioning modules

Procurement Notes

Verify the specific ordering suffix against official Vishay documentation to confirm tape-and-reel dimensions and quantity per reel. Ensure the component matches the required RoHS compliance status and commercial grade classification. Cross-reference the exact part number with authorized distributors to validate current availability and standard lead times before finalizing procurement plans.

Selection Notes

Select this variant when a strict ±2% Zener voltage tolerance is mandatory for circuit accuracy. The common-anode topology simplifies layout compared to discrete components. Confirm that the 300 mW power rating on FR-4 meets thermal requirements. Verify that the commercial grade specification aligns with the target application environment rather than automotive standards.

Part Context

This component belongs to the AZ23 series of small-signal silicon planar Zener diodes. The series offers a wide voltage range from 2.2 V to 75 V with both ±5% and ±2% tolerance options. The AZ23B30-E3-18 specifically utilizes the 'B' designation for tighter tolerance and the '-18' suffix for 10,000-unit reels on 13-inch carriers.

Replacement Considerations

AZ23B30-E3-08 provides identical electrical characteristics but is packaged in 3,000-unit reels on 7-inch carriers.