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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 2.7V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：2.7 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：83 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-55°C ~ 150°C
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23B2V7-HE3-08 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 2.7 V with a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive applications and operates within a temperature range of -55 °C to +150 °C. Electrical characteristics include a maximum reverse leakage current of 20 µA at 1 V and a dynamic resistance of 83 Ω at a test current of 5 mA.
Feature Summary
- Dual common anode configuration providing two independent Zener diodes in a single compact package
- Automotive-grade qualification compliant with AEC-Q101 standards for enhanced reliability
- High electrostatic discharge (ESD) protection capability exceeding 8 kV via human body model
Applications
- Voltage reference circuits requiring precise low-voltage regulation
- Overvoltage protection stages in automotive electronic control units
- Clamping applications in signal conditioning interfaces
Procurement Notes
Verify that the ordering code suffix matches the required tape-and-reel quantity and packaging format. Confirm the HE3 designation indicates AEC-Q101 qualification rather than commercial grade. Ensure the B tolerance code corresponds to the specific ±2% voltage accuracy required by the design specifications before finalizing procurement orders.
Selection Notes
Select this component when a dual-channel voltage reference or clamp is needed in a space-constrained layout. The ±2% tolerance offers tighter precision than standard C-grade parts. Verify that the 2.7 V breakdown voltage aligns with the target circuit threshold and that the SOT-23 footprint fits the available board area constraints.
Part Context
This part belongs to the Vishay AZ23 series of small-signal Zener diodes. The series covers a wide voltage range from 2.2 V to 75 V. The HE3 suffix denotes automotive-grade compliance, while the B suffix specifies the tighter ±2% voltage tolerance compared to the standard ±5% C-grade variants.
Replacement Considerations
AZ23B2V7-E3-08: Commercial grade equivalent without AEC-Q101 qualification.
FAQ
What is the difference between the AZ23B2V7-HE3-08 and AZ23B2V7-E3-08?
The HE3 suffix indicates the device is AEC-Q101 qualified for automotive applications, whereas the E3 suffix denotes a commercial grade part.
What does the 'B' indicate in the part number AZ23B2V7-HE3-08?
The 'B' indicates a Zener voltage tolerance of ±2%, which is tighter than the standard ±5% tolerance indicated by 'C'.
Is the AZ23B2V7-HE3-08 suitable for high-temperature environments?
Yes, the device is rated for an operating junction temperature range of -55 °C to +150 °C.
