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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 24V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：24 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 18 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 AZ23B24-E3-18 is a dual common anode Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 24 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 0.05 µA at 18 V. Dynamic resistance is specified at 70 Ω, while the temperature coefficient ranges from 8 to 10 x 10⁻⁴/°C. Rated for surface mount installation in an SOT-23 package, it supports power dissipation up to 500 mW and functions across an operating temperature range of -55°C to +150°C.
Feature Summary
- Dual common anode configuration allows independent regulation using a shared reference terminal.
- Tight voltage tolerance ensures precise clamping performance in sensitive circuitry.
- Robust ESD protection capability enhances reliability against electrostatic discharge events.
Applications
- Voltage reference circuits requiring stable dual rails
- Overvoltage protection for signal lines
- Clamping applications in communication interfaces
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status matches project requirements. Ensure storage conditions adhere to moisture sensitivity level guidelines. Validate marking codes against official datasheet specifications to prevent counterfeit infiltration during assembly processes.
Selection Notes
Select this variant when strict ±2% voltage accuracy is mandatory compared to standard ±5% options. Consider the common anode topology for simplified biasing networks. Evaluate thermal management needs based on the 500 mW dissipation rating under specific PCB footprint constraints.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes. The 'B' designation indicates the tighter ±2% tolerance grade. The suffix '-E3' confirms lead-free and RoHS compliance. The '-18' suffix specifies tape and reel packaging containing 10,000 units per reel.
Replacement Considerations
AZ23B24-E3-08 offers identical electrical characteristics but utilizes 3,000-unit tape and reel packaging.
FAQ
What is the dynamic resistance value for the AZ23B24-E3-18?
The dynamic resistance (ZZ) is specified as a maximum of 70 Ω at a test current of 5 mA.
Does the AZ23B24-E3-18 have AEC-Q101 qualification?
No, the base P/N-E3 version is commercial grade. AEC-Q101 qualification is available only for the HE3_A variant.
What is the maximum reverse leakage current?
The maximum reverse leakage current is 0.05 µA when measured at a reverse voltage of 18 V.
