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1N4742AH
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Product Detailed Parameters
- Description：DIODE ZENER 12V 1W DO204AL
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：45 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 25.1 V
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：-
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The Taiwan Semiconductor 1N4742AH is a single-channel Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 10 V with a tolerance of 5%. The device is rated for a maximum power dissipation of 1 W and operates within a temperature range suitable for industrial environments. Packaged in a Reel format, it supports surface-mount or automated assembly processes. This component belongs to the 1N47xxA series, ensuring compatibility with standard JEDEC mechanical outlines for reliable integration into electronic circuits requiring stable reference voltages.
Feature Summary
- Provides precise voltage regulation with a nominal 10 V output
- Capable of handling up to 1 W of power dissipation
- Manufactured with AEC-Q101 qualification for automotive reliability standards
Applications
- Voltage stabilization in automotive electronic systems
- Reference voltage generation in precision measurement circuits
- Over-voltage protection in power supply modules
Procurement Notes
Verify that the specific suffix AH corresponds to the required reel packaging configuration and AEC-Q101 automotive qualification status. Confirm RoHS compliance details directly from the manufacturer's datasheet before finalizing procurement orders to ensure adherence to environmental regulations.
Selection Notes
Select this component when a 10 V Zener voltage with 5% tolerance is required for automotive-grade applications. Ensure the design accommodates the 1 W power rating and verify that the reel packaging aligns with the intended automated assembly equipment capabilities.
Part Context
This part belongs to the 1N47xxA series of Zener diodes manufactured by Taiwan Semiconductor. The series offers a wide range of voltage options within the DO-41 mechanical outline family. The 'AH' suffix typically denotes specific packaging and qualification attributes distinct from standard bulk versions.
Replacement Considerations
Cross-reference with other manufacturers offering 1N4741 equivalents. Verify that substitute parts meet the same AEC-Q101 automotive qualification and 1 W power dissipation ratings.
