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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 51V SOT-23-3
- Series：AZ23-G
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：51 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 38 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 AZ23C51-G3-18 is a silicon planar Zener diode array from the AZ23-G series, manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration housed in a SOT-23 surface-mount package. The nominal Zener voltage is 51 V with a ±5% tolerance, tested at a current of 2 mA. Key electrical parameters include a maximum reverse leakage current of 0.05 µA at 38 V and a dynamic resistance of 100 Ω at 2 mA. The device supports a maximum power dissipation of 300 mW on an FR-4 board and operates within a temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for integrated circuit protection
- Silicon planar technology ensuring high reliability
- Green commercial grade material composition
Applications
- Voltage reference circuits requiring dual channels
- Transient voltage suppression in signal lines
- Overvoltage protection for sensitive electronic components
Procurement Notes
Verify the specific ordering suffix against the manufacturer's documentation to confirm reel size and tape specifications. Confirm RoHS compliance status and material categorization details directly with authorized distributors or the manufacturer before finalizing procurement orders.
Selection Notes
Select this component when a dual common anode Zener array is required in a compact SOT-23 footprint. Ensure the 51 V nominal voltage aligns with the circuit design requirements. Verify that the 300 mW power dissipation rating on FR-4 boards meets the thermal management needs of the application environment.
Part Context
This part belongs to the AZ23-G series of small signal Zener diodes. The 'C' designation indicates a standard ±5% voltage tolerance, while the 'G3' suffix denotes green, commercial grade packaging. The '-18' suffix specifies a 10,000-unit reel size on an 8 mm tape.
Replacement Considerations
AZ23B51-G3-18 (±2% tolerance variant)
FAQ
What is the test current for the Zener voltage specification?
The Zener voltage is specified at a test current (IZT) of 2 mA.
What is the maximum reverse leakage current?
The maximum reverse leakage current is 0.05 µA, measured at a reverse voltage of 38 V.
Is this component AEC-Q101 qualified?
AEC-Q101 qualification is available for this series, but the specific part number must be confirmed with the manufacturer as it is not standard for all variants.
