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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 30V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：30 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 21 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 AZ23B30-HE3_A-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a SOT-23 surface-mount package. It features a nominal Zener voltage of 30 V with a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive applications and RoHS compliant. Electrical characteristics include a maximum reverse leakage current of 50 µA at 22.5 V and a dynamic resistance of 80 Ω at a test current of 2 mA. It operates within a temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- AEC-Q101 qualification ensuring reliability in automotive environments
- Tight ±2% Zener voltage tolerance for precision regulation
- ESD protection exceeding 8 kV via human body model
Applications
- Automotive voltage reference circuits
- Precision voltage regulation modules
- Over-voltage protection stages
Procurement Notes
Verify the specific HE3_A suffix confirms AEC-Q101 automotive qualification and RoHS compliance during sourcing. Confirm the -18 tape and reel quantity matches production requirements. Ensure the component status remains active as automotive grades may undergo lifecycle changes.
Selection Notes
Select this variant when a 30 V reference requires tighter than standard ±5% tolerance. The dual common anode structure allows independent control of two regulated rails from a single input node. Verify thermal management capabilities against the 300 mW dissipation limit on the target PCB footprint.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes. The 'B' designation indicates the ±2% tolerance grade, while 'HE3_A' specifies the lead-free, halogen-free automotive-grade construction. The '-18' suffix denotes packaging in 13-inch reels containing 10,000 units.
Replacement Considerations
AZ23B30-E3-18 (Commercial Grade)
FAQ
What is the dynamic resistance of the AZ23B30-HE3_A-18?
The dynamic resistance (ZZ) is specified as a maximum of 80 Ω at a test current of 2 mA.
Is the AZ23B30-HE3_A-18 suitable for automotive use?
Yes, the HE3_A suffix indicates the device is AEC-Q101 qualified for automotive applications.
What is the maximum operating junction temperature?
The maximum junction temperature (Tj) is 150 °C.
