AZ23C12-E3-18

Overview

The AZ23C12-E3-18 is a dual common anode Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 12 V with a ±5% tolerance, tested at a current of 5 mA. The device has a maximum dynamic resistance of 20 Ω and a reverse leakage current of 0.1 μA at 9 V. It operates within a temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. Packaged in a SOT-23 (TO-236-3) surface-mount housing, it is supplied in reels of 10,000 units.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• Silicon planar construction ensuring robust performance
• RoHS-compliant commercial grade material categorization

Applications

• Voltage reference circuits requiring dual polarity or split supplies
• Clamping and protection stages in signal processing paths
• Biasing networks in low-power analog applications

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging quantity and tape specifications. Confirm RoHS compliance status and material categorization requirements prior to finalizing procurement orders. Ensure that the selected variant matches the required voltage tolerance and package dimensions for the intended PCB layout.

Selection Notes

Select this component when a dual common anode topology is required within a compact SOT-23 footprint. Consider the 300 mW power dissipation limit on standard FR-4 boards during thermal design. Evaluate the 20 Ω dynamic resistance and 0.1 μA leakage current against the precision requirements of the target application circuit.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes from Vishay Semiconductors. The series offers a wide range of graded Zener voltages from 2.2 V to 75 V according to the E24 standard. Variants are available with different tolerances and AEC-Q101 automotive qualifications depending on the specific ordering code suffixes.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific component were not identified in the provided source material.