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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 30V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：30 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 22.5 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 AZ23B30-E3-08 is a dual common anode silicon planar Zener diode array manufactured by Vishay Semiconductors. It features a nominal Zener voltage of 30 V with a tight tolerance of ±2%. The device operates within a test current range of 2 mA to 5 mA and exhibits a maximum reverse leakage current of 50 µA at 22 V. Dynamic resistance is specified at 80 Ω, while the temperature coefficient ranges from 8 to 10 × 10⁻⁴/°C. Rated for surface mount installation in an SOT-23 package, it supports power dissipation up to 500 mW and functions reliably across an operating temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration allows independent regulation or series connection of two Zener elements within a single compact footprint.
- Tight voltage tolerance of ±2% ensures high precision for sensitive reference applications compared to standard commercial grades.
- Robust ESD protection capability exceeding 8 kV via human body model and 800 V via machine model enhances circuit reliability.
Applications
- Precision voltage reference circuits requiring stable dual rails
- Overvoltage protection stages in signal conditioning paths
- Clamping networks for transient suppression in communication interfaces
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status matches project requirements. Validate that the specific ordering suffix corresponds to the desired tape and reel packaging format before finalizing purchase orders.
Selection Notes
Select this variant when strict ±2% voltage accuracy is mandatory. Ensure thermal management accommodates the 500 mW dissipation limit. Verify that the common anode topology aligns with the intended circuit polarity and ground references.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes. The 'B' designation indicates the tighter ±2% tolerance grade, distinguishing it from the standard ±5% 'C' grade variants within the same physical package family.
Replacement Considerations
AZ23B30-E3-18
FAQ
What is the dynamic resistance value at the test current?
The dynamic resistance (ZZ) is specified as a maximum of 80 Ω when tested at IZT1.
Does this part require AEC-Q101 qualification?
No, the base P/N-E3 designation indicates commercial grade. AEC-Q101 qualified versions utilize the HE3_A suffix.
How does the common anode configuration function electrically?
Both Zener diodes share a single anode terminal, allowing their cathodes to be used independently for separate voltage regulation or clamping tasks.
