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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-23
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- 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：100 nA @ 14 V
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The AZ23C18 is a dual surface mount Zener diode manufactured by Taiwan Semiconductor Corporation, housed in an SOT-23 package. It features a common anode configuration with two independent Zener junctions. 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 mA. Maximum power dissipation is rated at 300 mW, and the maximum reverse leakage current is 1 µA at 14 V. The device operates within a junction temperature range of -55 °C to +150 °C.
Feature Summary
- Dual Zener diodes integrated into a single compact SOT-23 package for space-efficient circuit designs.
- Common anode configuration allows for simplified biasing and reduced component count in voltage regulation applications.
- Compliant with RoHS standards and halogen-free manufacturing processes.
Applications
- Low voltage stabilizers or voltage references
- Adapters
- Lighting applications
- On-board DC/DC converters
Procurement Notes
Verify the specific ordering suffix (e.g., RF) against the manufacturer's datasheet to confirm packaging details such as reel size and tape specifications. Ensure that the selected variant meets the required moisture sensitivity level and environmental compliance standards for the intended assembly process.
Selection Notes
Select this component when a dual Zener array with a common anode topology is required for voltage clamping or reference purposes. Confirm that the 300 mW power dissipation rating and the 18 V nominal breakdown voltage align with the circuit's thermal and electrical requirements.
Part Context
This part belongs to the AZ23C series, which offers a wide selection of Zener voltages ranging from 2.7 V to 51 V. All devices in this series share the same SOT-23 mechanical footprint and general electrical characteristics, differing primarily in their specific Zener voltage ratings and corresponding marking codes.
Replacement Considerations
Direct replacements must match the SOT-23-3 package, dual common anode configuration, and 18 V nominal Zener voltage. Verify that alternative manufacturers' parts meet the same 300 mW power dissipation and leakage current specifications.
