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1N4740AUR
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Product Detailed Parameters
- Description：DIODE ZENER 10V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：10 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：7 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 7.6 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：DO-213AB, MELF (Glass)
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4740AUR is a single Zener diode designed for surface-mount applications. It features a nominal Zener voltage of 10 V with a 5% tolerance and operates within a power dissipation rating of 1 W. The device utilizes the DO-213AB-2 package, measuring 5.2 mm in length and 2.66 mm in diameter. Electrical characteristics include a maximum reverse leakage current of 10 uA at specified conditions, a Zener impedance of 7 Ohms, and a test current of 25 mA. It supports a wide operating temperature range from -65 C to +175 C.
Feature Summary
- Provides stable voltage regulation using silicon Zener breakdown technology
- Engineered for surface-mount installation via the DO-213AB-2 package
- Capable of handling high thermal loads up to 175 C junction temperature
Applications
- Voltage reference circuits requiring precise 10 V levels
- Overvoltage protection stages in electronic systems
- General-purpose voltage regulation in industrial equipment
Procurement Notes
Verify the specific suffix against official Microchip documentation to confirm exact electrical tolerances and testing standards. Ensure the procurement channel provides valid manufacturer traceability. Confirm that the DO-213AB-2 footprint matches the target PCB design requirements before finalizing orders.
Selection Notes
Select this component when a 10 V regulation point is required in a compact surface-mount form factor. The 1 W power rating allows for robust performance in moderate current applications. Consider the 5% voltage tolerance and 7 Ohm impedance for circuit stability requirements.
Part Context
This part belongs to the standard 1N47xx series of 1-watt Zener diodes manufactured by Microchip Technology. The 'A' designation typically indicates a 5% voltage tolerance, while the 'UR' suffix denotes the specific surface-mount packaging configuration used for automated assembly processes.
Replacement Considerations
Cross-reference with other manufacturers offering 1N4740 equivalents in the DO-213AB-2 package. Verify that substitute parts meet the same 10 V nominal voltage, 1 W power dissipation, and 175 C maximum operating temperature specifications.
