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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 47V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 35 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 AZ23C47-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 47 V with a ±5% tolerance, tested at a current of 2 mA. Maximum power dissipation is rated at 300 mW on an FR-4 board and 500 mW with leads clamped. The device operates across a temperature range of -55°C to +150°C and carries AEC-Q101 qualification.
Feature Summary
- AEC-Q101 qualified for automotive reliability standards
- Dual common anode configuration in a compact SOT-23 package
- ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
- RoHS-compliant construction without halogenated substances
Applications
- Automotive electronic circuit voltage regulation
- Transient voltage suppression in sensitive signal lines
- Reference voltage generation in dual-channel systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation before procurement. Confirm that the HE3_A variant designation aligns with required AEC-Q101 automotive qualification standards. Ensure the tape and reel packaging matches the intended automated assembly equipment specifications.
Selection Notes
Select this component when a dual common anode topology is required for space-constrained designs. Verify that the 47 V nominal breakdown voltage meets the circuit requirements under the specified 2 mA test current. Consider the 300 mW thermal dissipation limit on standard PCB footprints during layout planning.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes from Vishay Semiconductors. The series provides graded Zener voltages according to the E24 standard. The 'C' indicates a 5% tolerance, while the 'HE3' suffix denotes a Halogen-free, Green-type compound compliant with RoHS directives.
Replacement Considerations
AZ23C47-E3-18
FAQ
What is the dynamic resistance of the AZ23C47-HE3-18?
The maximum dynamic resistance (ZZ) at the test current of 2 mA is 97 Ohms.
Does the AZ23C47-HE3-18 meet automotive standards?
Yes, the HE3_A version of the AZ23 series is qualified according to the AEC-Q101 stress test qualification for automotive grade components.
What is the maximum reverse leakage current?
The maximum reverse leakage current is 0.05 µA when measured at a reverse voltage of 35 V.
