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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)：55 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 14 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 AZ23C20-HE3_A-18 is a dual common anode silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 20 V with a ±5% tolerance, tested at a current of 5 mA. The device provides a maximum reverse leakage current of 0.05 µA and a dynamic resistance of 50 Ω. Rated for a power dissipation of 300 mW on an FR-4 board, it operates within a temperature range of -55 °C to +150 °C. Packaged in an SOT-23 case, this component is AEC-Q101 qualified and supplied in taped reels of 10,000 units.
Feature Summary
- Dual common anode configuration for integrated voltage regulation
- Qualified to AEC-Q101 standards for automotive reliability
- High ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
- RoHS-compliant construction utilizing green molding compound
Applications
- Automotive electronic circuit voltage clamping
- Transient voltage suppression in sensitive signal lines
- Reference voltage generation in dual-channel systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm tape-and-reel quantities and packaging dimensions. Ensure that the HE3_A designation aligns with required AEC-Q101 qualification levels for the target application environment. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement specifications.
Selection Notes
Select this component when a dual Zener array with a 20 V nominal rating and ±5% tolerance is required. Confirm that the 300 mW power dissipation rating on FR-4 meets the thermal design constraints. Verify compatibility with the SOT-23 footprint and ensure the operating temperature range covers the intended environmental conditions.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes from Vishay Semiconductors. The series offers a wide range of Zener voltages from 2.2 V to 75 V in both single and dual configurations. The AZ23C20 variant specifically targets applications requiring precise 20 V regulation within a compact surface-mount package.
Replacement Considerations
AZ23C20-E3-18
FAQ
What is the dynamic resistance of the AZ23C20-HE3_A-18?
The dynamic resistance (ZZ) is specified as a maximum of 50 Ω at a test current of 5 mA.
Is the AZ23C20-HE3_A-18 suitable for automotive applications?
Yes, the HE3_A suffix indicates that the device is qualified to the AEC-Q101 standard for high reliability in automotive environments.
What is the maximum reverse leakage current for this device?
The maximum reverse leakage current (IR) is 0.05 µA when measured at a reverse voltage of 15 V.
