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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 4.3V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：4.3 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：95 Ohms
- Current - Reverse Leakage @ Vr：-
- 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 AZ23C4V3-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 4.3 V with a standard tolerance of ±5%. Electrical characteristics include a maximum reverse leakage current of 3 µA at 4 V and a dynamic resistance of 90 Ω at a test current of 5 mA. The device supports a power dissipation of up to 500 mW, operates within a temperature range of -55 °C to +150 °C, and is supplied in tape-and-reel packaging containing 10,000 units per reel.
Feature Summary
- Dual common anode circuit configuration for integrated voltage regulation
- ESD protection capability exceeding 8 kV via human body model and 800 V via machine model
- RoHS-compliant construction utilizing lead-free soldering materials
Applications
- Voltage reference circuits requiring dual independent regulated outputs
- Input voltage clamping and transient suppression in signal lines
- Over-voltage protection stages in automotive electronic control modules
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm compliance requirements. The HE3_A designation indicates AEC-Q101 qualification, whereas other suffixes may denote commercial grade status. Confirm that the requested quantity matches the manufacturer's standard minimum order quantity for the selected packaging format before finalizing procurement orders.
Selection Notes
Select this component when a dual-channel voltage regulation solution is required in a compact footprint. Ensure the application voltage does not exceed the specified breakdown limits. Verify thermal management capabilities if operating near the maximum junction temperature. Consider the ±5% tolerance band for precision applications where tighter specifications are necessary.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes designed for general-purpose voltage regulation tasks. The series offers various voltage grades aligned with international E24 standards. The specific model utilizes a SOT-23 package to facilitate automated surface-mount assembly processes while maintaining reliable electrical performance across industrial temperature ranges.
Replacement Considerations
AZ23C4V3-E3-18
FAQ
What is the dynamic resistance value for the AZ23C4V3-HE3-18?
The dynamic resistance (ZZ) is specified as a maximum of 90 Ω when tested at a current of 5 mA.
Does the AZ23C4V3-HE3-18 meet automotive reliability standards?
Yes, the HE3_A variant is qualified according to the AEC-Q101 standard for automotive applications.
What is the maximum reverse leakage current specification?
The maximum reverse leakage current is 3 µA when measured at a reverse voltage of 4 V.
