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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：50 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-65°C ~ 150°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The AZ23C18-7-F is a dual surface mount Zener diode array manufactured by Diodes Incorporated. It features two Zener diodes in a common anode configuration within a single SOT-23 package. The nominal Zener voltage is 18V, with a specified range of 16.8V to 19.1V at a test current of 5.0mA. The device supports a maximum power dissipation of 300mW and operates across a temperature range from -65°C to +150°C. Electrical characteristics include a typical temperature coefficient of +0.090%/°C, a maximum Zener impedance (ZZT) of 50 Ohms at 1kHz, and a reverse leakage current of 0.1µA.
Feature Summary
- Dual Zener diodes integrated in a common anode configuration for space-efficient circuit design.
- High reliability qualification compliant with JEDEC standards.
- Lead-free construction fully compliant with RoHS directives and halogen/antimony free.
- Optimized for automated insertion processes.
Applications
- Voltage reference circuits requiring dual stable potentials.
- Over-voltage protection stages in signal conditioning paths.
- Clamping applications in high-reliability electronic assemblies.
Procurement Notes
Verify the complete part number including suffixes against official distributor catalogs to ensure correct packaging and commercial grade qualification. Confirm that the specific lot meets required environmental compliance standards prior to integration into final manufacturing processes.
Selection Notes
Select this component when a dual Zener solution with a common anode topology is required. Ensure the 18V nominal voltage aligns with circuit requirements and verify that the 300mW power rating accommodates expected thermal loads without exceeding junction temperature limits.
Part Context
This component belongs to the AZ23C series of dual surface mount Zener diodes produced by Diodes Incorporated. The series offers various voltage options ranging from 2.7V to 51V, all sharing the same SOT-23 footprint and common anode architecture to facilitate standardized PCB layouts.
Replacement Considerations
The DZ23C18-7-F serves as a functional replacement if a common cathode configuration is acceptable instead of the standard common anode setup. Verify pinout compatibility before substitution.
FAQ
What is the electrical configuration of the internal diodes?
The device contains two Zener diodes connected in a common anode configuration.
Is this component qualified for automotive applications?
No, this specific part is commercially qualified. Automotive-grade versions require the Q-suffix (e.g., AZ23C18Q-7-F).
What is the maximum operating junction temperature?
The maximum operating and storage temperature range extends up to +150°C.
