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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 33V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：33 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 23.1 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 AZ23C33-HE3_A-08 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 package. It features a nominal Zener voltage of 33 V with a ±5% tolerance and a maximum power dissipation of 300 mW on an FR-4 board. The device operates within a temperature range of -55 °C to +150 °C and carries AEC-Q101 qualification for automotive applications.
Feature Summary
- Dual common anode configuration providing two independent Zener references in a single compact surface-mount package.
- AEC-Q101 qualified construction ensuring reliability and compliance with automotive electronic component standards.
- ESD protection capability exceeding 8 kV via human body model and 800 V via machine model.
Applications
- Automotive circuitry requiring robust ESD protection and stable voltage reference points.
- Signal conditioning stages utilizing dual common anode topology for differential or complementary clamping.
- General-purpose voltage regulation and transient suppression in space-constrained electronic assemblies.
Procurement Notes
Verify the specific HE3_A suffix to confirm AEC-Q101 automotive qualification status. Ensure the ordering code matches the required 5% tolerance indicated by the 'C' designation. Confirm that the tape and reel packaging aligns with automated assembly requirements before finalizing procurement orders.
Selection Notes
Select this component when a dual common anode Zener array is required for automotive-grade designs. Verify that the 300 mW thermal dissipation limit on standard FR-4 boards meets the application's power constraints. Consider the 33 V nominal breakdown voltage against the specific circuit operating parameters.
Part Context
This part belongs to the Vishay AZ23 series of small signal Zener diodes. The series offers various voltage grades according to the E24 standard and includes both commercial (E3) and automotive (HE3_A) variants. The SOT-23 package provides a compact footprint suitable for high-density PCB layouts.
Replacement Considerations
AZ23C33-E3-08
FAQ
What does the 'C' indicate in the AZ23C33-HE3_A-08 ordering code?
The 'C' indicates a standard Zener voltage tolerance of ±5%. Replacing it with 'B' would specify a tighter ±2% tolerance.
Is the AZ23C33-HE3_A-08 suitable for high-voltage transient suppression?
No, it is designed as a small signal Zener diode with a 300 mW power rating, intended for voltage referencing and low-power clamping rather than high-energy transient suppression.
How is the ESD capability defined for this component?
The datasheet specifies an ESD capability of greater than 8 kV according to the human body model and greater than 800 V according to the machine model.
