AZ23B16-E3-08

Overview

The AZ23B16-E3-08 is a dual common-anode Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 16 V with a tight tolerance of ±2%, indicated by the 'B' in the part number. The device operates within an ambient temperature range of -55°C to +150°C and dissipates up to 300 mW on an FR-4 board. Packaged in a compact SOT-23 (TO-236-3, SC-59) surface-mount housing, it provides high ESD protection exceeding 8 kV via the human body model. The component complies with RoHS standards and utilizes silicon planar technology for reliable voltage regulation.

Feature Summary

• Dual common-anode configuration for efficient space-saving circuit designs
• High electrostatic discharge robustness exceeding 8 kV HBM and 800 V MM
• Tight voltage tolerance of ±2% for precise reference applications
• RoHS-compliant commercial grade construction

Applications

• Precision voltage reference circuits requiring stable dual outputs
• ESD protection stages in sensitive signal lines
• Over-voltage clamping in low-power consumer electronics

Procurement Notes

Verify the specific ordering suffix '-08' against current manufacturer documentation to confirm the 3000-unit reel packaging format. Ensure that the commercial grade designation aligns with project requirements, as automotive-grade variants utilize different suffixes. Cross-reference the exact part number with official Vishay distributors to confirm active status and availability before finalizing procurement plans.

Selection Notes

Select this variant when a ±2% voltage tolerance is required instead of the standard ±5%. Confirm that the 16 V nominal breakdown voltage matches the target clamping threshold. Verify that the SOT-23 package footprint fits the PCB layout constraints. Ensure the operating environment stays within the specified -55°C to +150°C range for optimal performance.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes from Vishay. The series offers a wide range of Zener voltages from 2.2 V to 75 V. Variants are available with either ±5% ('C') or ±2% ('B') tolerances. The AZ23B16-E3-08 specifically represents the 16 V, ±2% tolerance option in the commercial grade lineup.

Replacement Considerations

AZ23C16-E3-08: Identical electrical characteristics except for a wider ±5% voltage tolerance.

FAQ

What does the 'B' indicate in the AZ23B16-E3-08 part number?

The 'B' indicates a tighter Zener voltage tolerance of ±2%, compared to the 'C' which denotes ±5%.

Is the AZ23B16-E3-08 qualified for automotive applications?

No, the base P/N-E3 is designated as commercial grade. Automotive qualification requires the HE3_A suffix indicating AEC-Q101 compliance.

What is the maximum power dissipation on an FR-4 board?

The maximum power dissipation is 300 mW when mounted on an FR-4 board with the recommended soldering footprint.