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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 Cathode
- 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 DZ23C18-7 is a dual surface mount Zener diode array manufactured by Diodes Incorporated. It features two Zener diodes in a common cathode configuration within an SOT-23 package. The nominal Zener voltage is 18 V with a tolerance range of 16.8 V to 19.1 V at a test current of 5.0 mA. Maximum Zener impedance is 50 Ω at IZT = 5.0 mA and 170 Ω at IZK = 1.0 mA. The device has a maximum power dissipation of 300 mW, a thermal resistance (junction to ambient) of 417 °C/W, and operates within a temperature range of -65 °C to +150 °C.
Feature Summary
- Dual Zeners in Common Cathode Configuration
- 300mW Power Dissipation
- Ideally Suited for Automated Insertion
- ΔVZ For Both Diodes in One Case is ≤ 5%
Applications
- Voltage reference circuits
- Over-voltage protection
- Clamping applications
Procurement Notes
Verify the complete part number includes the -7-F suffix for commercial grade tape and reel packaging. Confirm RoHS compliance and halogen-free status if required by specific environmental regulations. Check for automotive-grade alternatives with Q-suffixes if AEC-Q100 qualification is necessary.
Selection Notes
Select this component when a compact dual Zener solution is needed for voltage regulation or clamping. Ensure the 18 V nominal breakdown voltage aligns with circuit requirements. Consider the 300 mW power rating and thermal resistance for heat dissipation in the intended application environment.
Part Context
This part belongs to the DZ23C series of 300mW dual surface mount Zener diodes from Diodes Incorporated. The series covers a wide range of Zener voltages from 2.7 V to 51 V, all sharing the same SOT-23 package and common cathode configuration. It is designed for high-reliability applications and meets JEDEC standards.
Replacement Considerations
Direct replacements include other DZ23C18 variants such as DZ23C18Q-7-F for automotive applications. Cross-brand equivalents in SOT-23 packages with similar 18 V Zener voltage and 300 mW power ratings should be evaluated for pin compatibility and electrical characteristics.
FAQ
What is the typical temperature coefficient for the DZ23C18-7?
The typical temperature coefficient for the DZ23C18-7 is +0.090 %/°C.
Is the DZ23C18-7 suitable for automated assembly?
Yes, the datasheet states it is ideally suited for automated insertion due to its SOT-23 surface mount package.
What is the maximum reverse leakage current for this device?
The datasheet does not explicitly list a maximum reverse leakage current value for the DZ23C18-7 in the provided Electrical Characteristics table.
