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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 51V SOT-23
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：51 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 38 V
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The AZ23C51 is a dual surface-mount Zener diode manufactured by Taiwan Semiconductor Corporation, housed in an SOT-23 package. It features a nominal Zener voltage of 51 V with a range of 48 V to 54 V at a test current (Izt) of 5 mA. The device has a maximum power dissipation of 300 mW and a junction temperature range from -55°C to +150°C. Electrical specifications include a maximum Zener impedance (Zzt) of 100 Ω and a leakage current (Ir) of 1 µA at a reverse voltage (Vr) of 38 V. The component is designed for automated assembly processes and complies with RoHS standards.
Feature Summary
- Dual common anode configuration suitable for compact circuit designs
- Halogen-free molding compound compliant with IEC 61249-2-21
- Moisture sensitivity level 1 per J-STD-020
Applications
- Low voltage stabilizers or voltage references
- Adapters
- Lighting applications
- On-board DC/DC converters
Procurement Notes
Verify the specific ordering suffix when purchasing, as variations such as RFG indicate halogen-free green compound packaging. Confirm that the selected variant matches the required reel size and packing format. Ensure compliance with environmental directives relevant to the target market before finalizing procurement orders.
Selection Notes
Select this component based on the required 51 V nominal breakdown voltage and the 300 mW power dissipation limit. Verify that the operating environment stays within the specified -55°C to +150°C junction temperature range. Consider the 100 Ω maximum impedance for noise-sensitive applications requiring stable voltage regulation.
Part Context
This part belongs to the AZ23C series, which covers a wide Zener voltage selection range from 2.7 V to 51 V. All devices in this family share the same SOT-23 mechanical footprint and thermal characteristics, allowing for standardized board layouts across different voltage requirements.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching the SOT-23 package, 300 mW power rating, and 51 V Zener voltage specifications.
FAQ
What is the marking code for the AZ23C51?
The marking code for the AZ23C51 is KDW.
Under what conditions is the Zener voltage tested?
The Zener voltage is tested under pulse conditions with a duration of 5 ms.
What is the standard tolerance on the nominal Zener voltage?
The device numbers listed have a standard tolerance on the nominal Zener voltage of ±5%.
