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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 27V SOT-23-3
- Series：AZ23-G
- 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-G3-08 is a dual common anode silicon planar Zener diode array from the Vishay AZ23-G series, housed in a surface-mount SOT-23 package. It features a nominal Zener voltage of 27 V with a tight tolerance of ±2%. The device operates at a test current of 2 mA and provides a maximum dynamic resistance of 80 Ω. Rated for power dissipation up to 500 mW on FR-4 boards, it supports an operating temperature range from -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration allows independent control of two Zener voltages within a single compact footprint.
- High precision grading offers a standard ±2% voltage tolerance for applications requiring tight regulation accuracy.
- Robust ESD protection capability exceeding 8 kV via human body model and 800 V via machine model.
Applications
- Voltage reference circuits requiring precise dual-rail generation
- Over-voltage protection stages in sensitive signal paths
- Clamping networks for transient suppression
Procurement Notes
Verify the specific suffix 'G3-08' against the manufacturer's latest documentation to confirm tape-and-reel quantities and RoHS compliance status. Ensure that the ordering code matches the required ±2% tolerance grade indicated by the 'B' designation. Cross-reference the document revision date to validate any recent parameter updates or packaging changes before finalizing procurement orders.
Selection Notes
Select this component when a dual-channel solution is needed to save board space compared to discrete single diodes. The ±2% tolerance makes it suitable for precision analog interfaces where standard ±5% parts are insufficient. Verify that the 2 mA test current aligns with the target circuit bias conditions to ensure accurate voltage regulation performance.
Part Context
This part belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series utilizes silicon planar technology and covers a wide voltage range from 2.2 V to 75 V. The 'B' suffix specifically denotes the tighter ±2% tolerance variant, while the 'G3-08' indicates green commercial grade packaging in 3000-unit reels.
Replacement Considerations
AZ23B27-E3-08
FAQ
What is the marking code for the AZ23B27-G3-08?
The marking code for this device is DF5.
How does the tolerance affect the voltage range?
With a ±2% tolerance, the Zener voltage ranges from a minimum of 26.46 V to a maximum of 27.54 V.
What is the reverse leakage current specification?
The maximum reverse leakage current is specified as 0.05 μA at a reverse voltage of 20 V.
