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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 43V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：43 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：60 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 32 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 AZ23C43-HE3-18 is a silicon planar Zener diode array from the AZ23 series, manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration within a SOT-23 surface-mount package. The nominal Zener voltage is 43 V with a ±5% tolerance. Electrical characteristics include a test current of 2 mA, a maximum reverse leakage current of 0.05 µA at 32 V, and a dynamic resistance of 97 Ω at 2 mA. The device supports a maximum power dissipation of 300 mW on an FR-4 board and operates across a temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for integrated circuit protection
- ESD capability exceeding 8 kV via human body model and 800 V via machine model
- AEC-Q101 qualified for automotive reliability standards
Applications
- Automotive electronic circuits requiring AEC-Q101 compliance
- Voltage reference applications in compact surface-mount designs
- Transient voltage suppression in dual-channel signal lines
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm tape-and-reel packaging and quantity specifications. Ensure that the HE3 designation aligns with required material categorization and RoHS compliance standards for the intended manufacturing process.
Selection Notes
Select this component when a dual common anode topology is required for space-constrained PCB layouts. The 43 V nominal rating suits applications needing precise voltage clamping within the E24 standard series. Verify thermal management requirements against the 300 mW dissipation limit on standard FR-4 substrates.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes offered by Vishay Semiconductors. The series provides graded Zener voltages ranging from 2.2 V to 75 V in both commercial and automotive grades. The AZ23C43 variant specifically addresses the 43 V step in the E24 standard tolerance band.
Replacement Considerations
AZ23C43-E3-18
FAQ
What is the dynamic resistance of the AZ23C43-HE3-18?
The dynamic resistance (ZZ) is specified as a maximum of 97 Ω at a test current of 2 mA.
Does the AZ23C43-HE3-18 meet automotive qualification standards?
Yes, the HE3 suffix indicates that the device is AEC-Q101 qualified for automotive applications.
What is the maximum reverse leakage current for this device?
The maximum reverse leakage current is 0.05 µA, measured at a reverse voltage of 32 V.
