AZ23B15-E3-18

Overview

The AZ23B15-E3-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a surface-mount SOT-23 package. It features a nominal Zener voltage of 15 V with a tight tolerance of ±2%. 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 50 nA at 11 V and a dynamic resistance of 11 Ω at 1 kHz. It supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for space-efficient circuit design
• High precision ±2% Zener voltage grading per E24 standard
• Robust thermal performance with low junction-to-lead thermal resistance

Applications

• Precision voltage reference circuits requiring dual channels
• Over-voltage protection stages in signal conditioning paths
• Clamping applications in high-density surface mount assemblies

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's official documentation to confirm tape-and-reel specifications and minimum order quantities. Ensure that the component designation matches the exact electrical tolerances required for the target application before finalizing procurement orders.

Selection Notes

Select this variant when a strict ±2% voltage tolerance is mandatory compared to the standard ±5% commercial grade. Confirm that the 300 mW power dissipation rating on FR-4 substrates aligns with the thermal management capabilities of the host printed circuit board layout.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor. The series utilizes silicon planar technology and offers various voltage options within the 2.2 V to 75 V range, packaged consistently in the compact SOT-23 form factor for automated surface mounting processes.

Replacement Considerations

AZ23B15-G3-18