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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 75V SOT-23-3
- Series：AZ23
- Mfr：Vishay
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：75 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：250 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 56 V
- Operating Temperature：150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The Vishay AZ23C75-HE3_A-08 is a silicon planar Zener diode array configured as dual common anode in an SOT-23 package. It features a nominal Zener voltage of 75 V with a ±5% tolerance, tested at 2 mA. The device has a maximum reverse leakage current of 56 μA and dynamic resistance of 250 Ω at 1 kHz. It operates within a temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. The component is AEC-Q101 qualified for automotive applications.
Feature Summary
- Dual common anode configuration for space-efficient circuit design
- AEC-Q101 qualification ensuring reliability in automotive environments
- ESD protection exceeding 8 kV human body model standards
Applications
- Automotive electronic systems requiring robust voltage regulation
- General-purpose voltage reference circuits
- Overvoltage protection in signal conditioning paths
Procurement Notes
Verify the specific HE3_A suffix confirms AEC-Q101 automotive qualification status before integration. Ensure the ordering code matches the required 5% tolerance designation. Confirm tape and reel specifications align with automated assembly equipment requirements. Validate RoHS compliance documentation against regional regulatory standards.
Selection Notes
Select this variant when dual common anode topology is required for shared ground references. The 75 V rating suits high-voltage clamping applications where standard single diodes are insufficient. Consider the 300 mW power dissipation limit for thermal management planning on FR-4 substrates.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers various voltage grades from 2.2 V to 75 V in the SOT-23 package. The HE3_A suffix specifically denotes the AEC-Q101 qualified version of the base HE3 product line.
Replacement Considerations
AZ23C75-HE3-08 (Commercial grade, non-automotive)
FAQ
What is the test current for the 75 V Zener voltage specification?
The Zener voltage is specified at a test current of 2 mA.
Does the HE3_A suffix indicate a different electrical function than the standard HE3 version?
No, the electrical characteristics remain identical; the suffix indicates AEC-Q101 automotive qualification and RoHS compliance.
What is the maximum operating junction temperature?
The maximum junction temperature is 150 °C.
