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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 6.8V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：6.8 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：8 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 3 V
- 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 AZ23B6V8-HE3-08 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 package. It provides a nominal Zener voltage of 6.8 V with a tight tolerance of ±2%. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. It features a dynamic resistance of 8 Ω at a test current of 5 mA and a maximum reverse leakage current of 2 μA. This component is AEC-Q101 qualified for automotive reliability.
Feature Summary
- Dual common anode configuration integrates two Zener diodes into a single compact surface-mount footprint.
- Tight ±2% voltage tolerance ensures precise reference levels for sensitive circuit applications.
- Automotive-grade qualification meets AEC-Q101 standards for enhanced reliability under harsh conditions.
Applications
- Voltage reference circuits requiring dual polarity or split-rail generation
- Overvoltage protection stages in automotive electronic control units
- Signal conditioning and clamping networks in industrial sensor interfaces
Procurement Notes
Verify the complete ordering code matches the required specifications before procurement. Confirm that the HE3 suffix indicates AEC-Q101 qualification rather than commercial grade. Ensure the tape and reel packaging aligns with automated assembly requirements. Cross-reference the manufacturer's latest datasheet revision to confirm active status and any potential product change notifications affecting form or function.
Selection Notes
Select this part when a dual common anode topology is necessary to save board space compared to discrete components. The ±2% tolerance makes it suitable for precision applications where standard 5% parts are insufficient. Verify that the 300 mW power dissipation rating on FR-4 meets the thermal design constraints of the target application environment.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of voltages from 2.2 V to 75 V in both single and dual configurations. The specific 'B' designation denotes the tighter 2% tolerance variant, while the 'HE3' suffix identifies it as the lead-free, halogen-free, AEC-Q101 qualified version of the device.
Replacement Considerations
AZ23B6V8-G3-08 (Commercial Grade)
FAQ
What is the difference between the AZ23B6V8-HE3-08 and AZ23B6V8-E3-08?
The AZ23B6V8-HE3-08 is AEC-Q101 qualified for automotive applications, whereas the AZ23B6V8-E3-08 is the commercial grade version without this specific automotive qualification.
How does the dual common anode configuration work?
The device contains two independent Zener diodes sharing a common anode terminal. This allows for efficient voltage clamping or reference generation using only three pins instead of six.
What is the maximum operating temperature for this device?
The maximum operating junction temperature is +150 °C, allowing for reliable operation in high-temperature environments typical of automotive and industrial applications.
