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1N4743AH
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Product Detailed Parameters
- Description：DIODE ZENER 13V 1W DO204AL
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：13 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：95 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 38.8 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 1N4743AH is a single Zener diode manufactured by Taiwan Semiconductor, designed for voltage regulation applications. It features a nominal Zener voltage of 13 V with a tolerance of 5%. The device dissipates up to 1 W of power and operates within a temperature range of -55 °C to +150 °C. Packaged in the DO-41-2 through-hole format, it exhibits a maximum reverse leakage current of 5 uA and a Zener impedance of 10 Ohms at a test current of 19 mA. This component holds AEC-Q101 qualification.
Feature Summary
- Provides stable voltage regulation with a 13 V nominal output.
- Qualified for automotive electronics via AEC-Q101 standards.
- Utilizes a robust DO-41-2 through-hole package for reliable mounting.
Applications
- Automotive electronic circuits requiring qualified components
- General-purpose voltage reference stabilization
- Power supply protection and regulation
Procurement Notes
Verify the specific suffix AH against the manufacturer's official documentation to confirm exact electrical tolerances and packaging details. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity. Confirm RoHS compliance status and REACH SVHC declarations prior to finalizing orders. Cross-reference the part number with the latest datasheet to validate availability and lifecycle status.
Selection Notes
Select this component when a 13 V regulation point is required in automotive or industrial environments. The AEC-Q101 qualification makes it suitable for harsh operating conditions. Compare the 10 Ohm impedance and 5 uA leakage against circuit requirements. Ensure the DO-41-2 footprint matches the PCB design constraints.
Part Context
This part belongs to the 1N4743AH series of silicon planar Zener diodes. It is distinct from generic 1N4743A variants due to its specific automotive qualification and Taiwan Semiconductor manufacturing specifications. The series covers various voltage ratings within the 1W power dissipation class.
Replacement Considerations
Substitutes include other AEC-Q101 qualified 13V Zener diodes in DO-41 packages from manufacturers like onsemi or Microchip. Verify that replacement parts meet the same 1W power rating and 150°C maximum junction temperature limits.
