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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 8.2V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：8.2 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：7 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 6 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 AZ23B8V2-E3-18 is a silicon planar Zener diode from the AZ23 series, manufactured by Vishay Semiconductors. It features a nominal Zener voltage of 8.2 V with a tight tolerance of ±2%, indicated by the 'B' in the ordering code. The device operates at a test current of 5 mA and is housed in an SOT-23 surface-mount package. Key electrical characteristics include a maximum reverse leakage current of 0.1 µA at 6 V and a dynamic resistance of 7 Ω at the test current. The component supports an operating temperature range from -55 °C to +150 °C.
Feature Summary
- Tight voltage tolerance of ±2% for precision regulation applications
- High ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
- RoHS-compliant commercial grade construction
Applications
- Voltage reference circuits requiring stable DC levels
- Over-voltage protection stages in sensitive electronics
- Clamping applications in signal conditioning paths
Procurement Notes
Verify that the specific part number matches the required ±2% tolerance designation ('B') rather than the standard ±5% ('C'). Confirm the suffix '-E3-18' corresponds to the correct RoHS-compliant commercial grade packaging format before finalizing orders.
Selection Notes
Select this component when a precise 8.2 V reference is needed within a compact SOT-23 footprint. Ensure the application current does not exceed the 5 mA test current significantly to maintain accuracy. Consider the thermal resistance values if power dissipation on FR-4 boards exceeds 300 mW.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes. The series offers a wide range of voltages from 2.2 V to 75 V. The 'B' variant specifically denotes the tighter manufacturing tolerance compared to the standard 'C' version, making it suitable for higher precision requirements.
Replacement Considerations
AZ23C8V2-E3-18 provides equivalent functionality but with a wider ±5% voltage tolerance instead of ±2%. Verify if the looser tolerance meets the circuit design specifications before substitution.
