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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 51V SOT-23-3
- Series：AZ23
- 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：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23C51-HE3-18 is a silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 package. It features a dual common anode configuration with a nominal Zener voltage of 51 V and a tolerance of ±5%. The device operates within a junction temperature range of -55 °C to +150 °C and supports a maximum power dissipation of 500 mW. Electrical characteristics include a reverse leakage current of 50 μA at 38 V and a dynamic resistance of 100 Ω at a test current of 2 mA.
Feature Summary
- Dual common anode configuration for integrated circuit protection
- AEC-Q101 qualified for automotive reliability standards
- ESD capability exceeding 8 kV via human body model
Applications
- Automotive electronic circuit protection
- Voltage reference applications requiring dual channels
- Transient voltage suppression in low-power systems
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm AEC-Q101 qualification status and tape reel specifications. Ensure that the component meets the required environmental compliance standards for the intended deployment environment before finalizing procurement orders.
Selection Notes
Select this component when a dual-channel Zener array with high ESD robustness is required. Confirm that the 51 V nominal voltage aligns with the target circuit's clamping requirements. Verify thermal management capabilities if operating near the maximum power dissipation limits.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers various voltage grades and packaging options designed for surface mount applications.
Replacement Considerations
AZ23C51-HE3_A-18
FAQ
What is the ESD rating for the AZ23C51-HE3-18?
The device has an ESD capability of greater than 8 kV according to the human body model and greater than 800 V according to the machine model.
What is the maximum power dissipation on an FR-4 board?
The maximum power dissipation is 300 mW when mounted on an FR-4 board with the recommended soldering footprint.
