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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：45 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 12.6 V
- Operating Temperature：150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23C18-HE3_A-08 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a SOT-23 package. It features a nominal Zener voltage of 18 V with a ±5% tolerance and a test current of 5 mA. The device has a maximum reverse leakage current of 0.05 µA at 14 V and a dynamic resistance of 45 Ω at 5 mA. It operates within a temperature range of -55 °C to +150 °C and is AEC-Q101 qualified for automotive applications.
Feature Summary
- Dual common anode configuration for space-efficient circuit design
- AEC-Q101 qualification for automotive reliability standards
- ESD protection exceeding 8 kV human body model and 800 V machine model
Applications
- Automotive electronic circuits requiring robust ESD protection
- Voltage reference and regulation in compact surface-mount designs
- Signal clamping and protection in consumer electronics
Procurement Notes
Verify the specific HE3_A suffix confirms AEC-Q101 automotive qualification and RoHS compliance. Confirm the tape and reel packaging matches the required quantity per reel specifications. Ensure the ordering code aligns with the desired voltage tolerance and package type before finalizing procurement.
Selection Notes
Select this component when a dual Zener array with common anode topology is required in a SOT-23 footprint. The HE3_A variant is appropriate for environments demanding AEC-Q101 qualification. Consider the 45 Ω dynamic resistance and 0.05 µA leakage current limits for precision voltage reference or clamping applications.
Part Context
This part belongs to the Vishay AZ23 series of small signal Zener diodes. The series offers various Zener voltages graded according to the E24 standard. The 'C' designation indicates a standard ±5% voltage tolerance, while the 'HE3_A' suffix denotes AEC-Q101 qualification and RoHS compliance.
Replacement Considerations
AZ23C18-E3-08 (Commercial grade, non-Automotive)
FAQ
What is the marking code for the AZ23C18?
The marking code for the AZ23C18 is D61.
Is the AZ23C18-HE3_A-08 suitable for high-reliability automotive applications?
Yes, the HE3_A suffix indicates that the device is AEC-Q101 qualified, making it suitable for automotive applications.
What is the maximum reverse leakage current for this device?
The maximum reverse leakage current is 0.05 µA, measured at a reverse voltage of 14 V.
