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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 27V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 20 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 AZ23B27-E3-08 is a dual common anode silicon planar Zener diode array from the AZ23 series, manufactured by Vishay Semiconductors. It provides two independent voltage regulation channels within a single SOT-23 surface-mount package. The nominal Zener voltage is 27 V with a tight tolerance of ±2%. Electrical testing is conducted at a test current (IZT1) of 2 mA. The device features a maximum reverse leakage current of 50 nA and a dynamic resistance of 80 Ω at the specified test conditions. It operates reliably across a temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for space-efficient circuit design
- High precision voltage regulation with ±2% tolerance
- Robust ESD protection exceeding 8 kV via human body model
Applications
- Precision voltage reference circuits requiring dual rails
- Over-voltage protection stages in signal conditioning paths
- Clamping applications in high-density surface mount assemblies
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status and check for AEC-Q101 qualification requirements if automotive standards are necessary. Ensure ordering codes match specific tolerance and packaging needs.
Selection Notes
Select this variant when precise dual-channel regulation is required in a compact footprint. The ±2% tolerance suits applications demanding strict voltage accuracy. Verify thermal management capabilities against the 300 mW dissipation limit on standard FR-4 boards.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes. The series offers various voltage grades aligned with the E24 standard. The 'B' designation indicates the tighter ±2% tolerance compared to the standard ±5% 'C' grade variants.
Replacement Considerations
AZ23B27-E3-18
FAQ
What is the test current for the AZ23B27-E3-08?
The test current (IZT1) is 2 mA.
Does the AZ23B27-E3-08 have AEC-Q101 qualification?
No, the base P/N-E3 is commercial grade. AEC-Q101 qualification is available only for the HE3_A suffix variants.
What is the maximum reverse leakage current?
The maximum reverse leakage current is 50 nA.
