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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-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 with two elements housed in a SOT-23 surface-mount package. The nominal Zener voltage is 33 V with a tolerance of ±5%. Electrical characteristics include a test current of 2 mA, a maximum reverse leakage current of 0.05 µA at 29 V, and a dynamic resistance of 80 Ω at 2 mA. The device is AEC-Q101 qualified for automotive applications, operates within a temperature range of -55 °C to +150 °C, and has a maximum power dissipation of 300 mW on an FR-4 board.
Feature Summary
- Dual common anode Zener diode array designed for compact circuit layouts
- Qualified for automotive electronics under the AEC-Q101 standard
- Provides electrostatic discharge protection exceeding 8 kV via human body model
- RoHS-compliant construction utilizing lead-free soldering materials
Applications
- Automotive electronic systems requiring ESD suppression
- Voltage reference circuits in consumer electronics
- Protection stages for sensitive input lines in industrial equipment
Procurement Notes
Verify that the ordering code matches the specific suffix requirements for tape and reel packaging. Confirm the HE3_A designation indicates AEC-Q101 qualification rather than commercial grade. Ensure the component meets RoHS3 compliance standards for the intended manufacturing process. Cross-reference the datasheet revision date against production lot information to validate technical specifications.
Selection Notes
Select this component when a dual common anode configuration is required for space-constrained designs. The 33 V nominal voltage suits applications needing precise clamping levels within the E24 standard. Consider the 80 Ω dynamic resistance for signal integrity requirements. Verify thermal management capabilities align with the 300 mW dissipation limit on the target PCB footprint.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes offered by Vishay Semiconductors. The series provides a wide range of Zener voltages from 2.2 V to 75 V in the SOT-23 package. The HE3_A suffix specifically denotes AEC-Q101 qualification and RoHS compliance, distinguishing it from the commercial grade E3 variants.
Replacement Considerations
AZ23C33-HE3-18
FAQ
What is the difference between the HE3_A and E3 suffixes?
The HE3_A suffix indicates the device is AEC-Q101 qualified for automotive applications, whereas the E3 suffix denotes a commercial grade product.
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.
How is the Zener voltage tolerance indicated in the part number?
The letter 'C' in the ordering code indicates a standard Zener voltage tolerance of ±5% according to the international E24 standard.
