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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 20V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：20 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：50 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 15 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 AZ23C20-E3-08 is a dual common anode Zener diode array manufactured by Vishay Semiconductors. It features a nominal Zener voltage of 20 V with a tolerance of ±5 %. The device operates at a test current of 5 mA and has a maximum reverse leakage current of 50 nA. Dynamic resistance is specified at 50 Ω, while the temperature coefficient ranges from 8 to 10 x 10⁻⁴/°C. Power dissipation reaches 300 mW on an FR-4 board, with an operating temperature range of -55 °C to +150 °C. It is housed in a compact SOT-23 package.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- Silicon planar technology ensuring robust performance
- ESD protection exceeding 8 kV via human body model
Applications
- Voltage reference circuits requiring dual stable potentials
- Overvoltage protection stages in signal conditioning paths
- Clamping applications in low-power electronic systems
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status matches project requirements. Validate datasheet revision against manufacturing date codes. Ensure storage conditions adhere to moisture sensitivity level specifications during handling.
Selection Notes
Select this variant when a precise 20 V reference is required alongside a secondary clamping function. The common anode topology simplifies biasing networks compared to discrete components. Verify thermal management capabilities align with the 300 mW dissipation limit under expected ambient conditions.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes. The series offers various voltage grades following the E24 standard. Different suffixes indicate specific packaging quantities or automotive qualifications within the same electrical family.
Replacement Considerations
AZ23B20-E3-08 provides tighter ±2 % voltage tolerance. AZ23C20-HE3_A-08 offers AEC-Q101 automotive qualification. Cross-reference dynamic resistance values if circuit impedance matching is critical.
