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1N4747A-T50A
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Product Detailed Parameters
- Description：DIODE ZENER 20V 1W DO41
- Series：-
- Mfr：onsemi
- Package：Cut Tape (CT),Tape & Box (TB)
- Voltage - Zener (Nom) (Vz)：20 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：22 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 15.2 V
- Operating Temperature：-65°C ~ 200°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：-
- Grade：-
- Qualification：-
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Overview
The onsemi 1N4747A-T50A is a single-channel general-purpose Zener diode with a nominal voltage of 20 V and a maximum power dissipation of 1 W. It features a 5% tolerance, 22 Ω maximum impedance, and 12.5 mA test current. The device operates within a temperature range of -65°C to +200°C, housed in a DO-41 through-hole package.
Feature Summary
- Provides stable voltage regulation at a nominal 20 V level for circuit protection and reference applications.
- Engineered for high thermal stability with an extended operating temperature range up to 200°C.
- Utilizes a glass-passivated DO-41 axial leaded package designed for reliable through-hole mounting.
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage generation in measurement systems
Procurement Notes
Verify the specific suffix T50A against official datasheets to confirm tape-and-reel packaging requirements. Ensure compatibility with existing PCB footprints for the DO-41 package. Confirm RoHS compliance status for the specific manufacturing batch prior to integration into final assemblies.
Selection Notes
Select this component when a precise 20 V regulation point is required with standard 5% tolerance. The 1 W power rating supports moderate current handling in axial configurations. Verify that the 22 Ω dynamic impedance meets the noise and stability requirements of the target application environment.
Part Context
This part belongs to the 1N47 series of silicon planar power Zener diodes manufactured by onsemi. The series offers a wide range of voltage options in the DO-41 package, providing a standardized solution for discrete voltage regulation tasks across various industrial and commercial electronics sectors.
Replacement Considerations
Direct substitutes include the 1N4747A (bulk) from onsemi or equivalent 20 V 1 W Zener diodes from other manufacturers such as Vishay or Taiwan Semiconductor, provided they match the DO-41 package and electrical specifications.
