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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 47V 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)：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：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23C47-G3-18 is a silicon planar Zener diode array from the Vishay AZ23-G series, housed in an SOT-23 package. It features a dual common anode configuration with a nominal Zener voltage of 47 V and a tolerance of ±5%. The device operates at a test current of 2 mA, with a maximum reverse leakage current of 0.05 µA at 35 V and a dynamic resistance of 97 Ω. Rated for power dissipation up to 500 mW on leads and 300 mW on FR-4 boards, it supports an operating temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for integrated circuit protection
- Silicon planar construction with ESD capability exceeding 8 kV (HBM)
- Green commercial grade material compliant with RoHS directives
Applications
- Voltage reference circuits requiring stable high-voltage regulation
- Overvoltage protection for sensitive electronic components
- Clamping applications in signal conditioning networks
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer part number and ordering code against official Vishay documentation. Confirm that the specific suffix indicates the correct reel size and tape format required for automated assembly processes. Ensure compliance with environmental standards such as RoHS and REACH before finalizing procurement orders.
Selection Notes
Select this component when a dual common anode Zener array is required for voltages near 47 V. The ±5% tolerance suits general-purpose applications where tighter precision is unnecessary. Consider the thermal resistance values and package constraints during PCB layout to ensure adequate heat dissipation within the specified junction temperature limits.
Part Context
This part belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of graded Zener voltages from 2.2 V to 75 V. The 'C' designation specifically denotes the standard ±5% voltage tolerance, distinguishing it from the 'B' variant which provides ±2% tolerance.
Replacement Considerations
AZ23B47-G3-18
FAQ
What is the marking code for the AZ23C47-G3-18?
The marking code for this device is D71.
What is the typical temperature coefficient for this voltage?
The temperature coefficient ranges from 10 x 10^-4 /°C to 2 x 10^-4 /°C.
How does the power dissipation rating change based on mounting?
The maximum power dissipation is 500 mW when measured at the leads, but reduces to 300 mW when mounted on an FR-4 board with the recommended soldering footprint.
