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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 16V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：16 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：40 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 12 V
- Operating Temperature：-55°C ~ 150°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23C16-E3-18 is a dual common-anode silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 16 V with a standard tolerance of ±5%, indicated by the 'C' in the part number. The device operates within an ambient temperature range of -55 °C to +150 °C and provides a maximum power dissipation of 300 mW on an FR-4 board. Packaged in a compact SOT-23 (TO-236-3) surface-mount housing, it utilizes a 10,000-unit reel format for automated assembly.
Feature Summary
- Dual common-anode configuration providing two independent Zener references in a single package
- High electrostatic discharge (ESD) protection capability exceeding 8 kV via human body model
- RoHS-compliant commercial grade construction without automotive qualification
Applications
- Voltage reference circuits requiring dual stable potentials
- Input protection stages for sensitive electronic interfaces
- Overvoltage clamping applications in signal conditioning paths
Procurement Notes
Verify that the specific ordering code matches the required tolerance level, as the 'C' designation confirms a ±5% Zener voltage tolerance. Confirm the suffix '-18' corresponds to the 10,000-unit tape and reel packaging format rather than the smaller quantity option. Ensure the procurement specification aligns with the commercial grade classification, as this variant lacks AEC-Q101 automotive certification.
Selection Notes
Select this component when a dual-channel voltage regulation solution is needed in a minimal footprint. The common-anode topology simplifies circuit design by sharing a single ground or supply connection point. Verify that the 300 mW thermal rating on standard PCB layouts meets the application's power dissipation requirements under worst-case operating conditions.
Part Context
This device belongs to the AZ23 series of small-signal Zener diodes from Vishay Semiconductors. The series offers a wide range of standardized voltages from 2.2 V to 75 V across various tolerance grades. The AZ23C16 represents the 16 V step within the standard E24 voltage grading system used for general-purpose semiconductor components.
Replacement Considerations
AZ23B16-E3-18
FAQ
What does the letter 'C' signify in the AZ23C16-E3-18 part number?
The 'C' indicates that the Zener voltage tolerance is ±5%. Replacing 'C' with 'B' would specify a tighter ±2% tolerance.
Is the AZ23C16-E3-18 qualified for automotive applications?
No, this specific part number is a commercial grade device. Automotive qualification requires the HE3_A suffix indicating AEC-Q101 compliance.
How is the dynamic resistance specified for this device?
The datasheet specifies a maximum dynamic resistance (ZZ) of 40 Ω at the test current IZT1 of 5 mA.
