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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 12V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：20 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 9 V
- Operating Temperature：-55°C ~ 150°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23B12-E3-08 is a dual common anode Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 12 V with a tight tolerance of ±2%, indicated by the 'B' designation in the part number. The device operates within a test current range of 2 to 5 mA and provides a maximum reverse leakage current of 0.1 µA at 9 V. Packaged in a compact SOT-23 surface-mount housing, it supports a power dissipation of up to 300 mW on an FR-4 board and functions reliably across an operating temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- Tight ±2% Zener voltage tolerance for precision applications
- RoHS-compliant commercial grade construction
- ESD protection exceeding 8 kV via human body model
Applications
- Precision voltage reference circuits
- Overvoltage protection networks
- Signal clamping and waveform shaping
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm tape-and-reel specifications and minimum order quantities. Ensure that the component meets all required environmental standards and RoHS compliance criteria before finalizing procurement orders.
Selection Notes
Select this variant when a precise 12 V regulation point is required with minimal voltage deviation. The dual common anode structure allows for efficient use of board space compared to discrete single diodes. Confirm thermal management requirements align with the specified 300 mW dissipation limit under expected operating conditions.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes from Vishay Semiconductors. The series offers a wide range of standardized voltages graded according to the international E24 standard. The 'E3' suffix denotes RoHS compliance, while the '08' indicates packaging in 3000-unit reels on 8 mm tape.
Replacement Considerations
AZ23C12-E3-08 (±5% tolerance)
FAQ
What does the 'B' indicate in the AZ23B12-E3-08 part number?
The 'B' signifies a Zener voltage tolerance of ±2%, providing tighter accuracy than the standard ±5% 'C' grade.
Is the AZ23B12-E3-08 AEC-Q101 qualified?
No, the base P/N-E3 is a commercial grade product. Automotive qualification requires the HE3_A suffix.
What is the maximum reverse leakage current for this device?
The maximum reverse leakage current is specified as 0.1 µA when measured at a reverse voltage of 9 V.
