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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：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 20 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 AZ23C27-HE3-18 is a silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration within a SOT-23 surface-mount package. The nominal Zener voltage is 27 V with a tolerance of ±5%. Electrical characteristics include a test current of 2 mA, a maximum reverse leakage current of 0.05 µA at 20 V, and a dynamic resistance of 80 Ω at the test current. The device supports a maximum power dissipation of 300 mW on an FR-4 board and operates across a temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- AEC-Q101 qualified for automotive reliability standards
- ESD protection capability exceeding 8 kV via human body model
Applications
- Automotive electronic circuits requiring AEC-Q101 compliance
- Voltage reference applications in compact surface-mount layouts
- Overvoltage protection in signal conditioning paths
Procurement Notes
Verify that the ordering code matches the specific suffix requirements for tape-and-reel packaging and AEC-Q101 qualification. Confirm RoHS compliance status and material categorization details against the latest manufacturer documentation before finalizing procurement specifications.
Selection Notes
Select this component when a 27 V Zener reference with ±5% tolerance is required in a SOT-23 footprint. Ensure the application current does not exceed the 2 mA test condition limits to maintain specified voltage accuracy. Verify thermal management capabilities align with the 300 mW dissipation rating on standard PCB footprints.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes from Vishay. The series offers various voltage grades according to the E24 standard. The HE3 suffix indicates AEC-Q101 qualification and RoHS compliance, distinguishing it from commercial grade variants.
Replacement Considerations
AZ23C27-E3-18 (Commercial Grade)
FAQ
What is the dynamic resistance of the AZ23C27-HE3-18?
The dynamic resistance is 80 Ω measured at a test current of 2 mA.
Is the AZ23C27-HE3-18 suitable for automotive applications?
Yes, the HE3 suffix indicates that the device is AEC-Q101 qualified.
What is the maximum reverse leakage current?
The maximum reverse leakage current is 0.05 µA at a reverse voltage of 20 V.
