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1N4748A_T50R
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Product Detailed Parameters
- Description：DIODE ZENER 22V 1W DO41
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：22 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：23 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 16.7 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 1N4748A_T50R is a silicon Zener diode with a nominal voltage of 22V and a tolerance of ±5%. It operates within a power dissipation range of up to 1.0W at lead temperatures below 50°C, derating linearly above that threshold. The device features a DO-41 glass passivated junction package and supports an operating temperature range from -65°C to +200°C. Electrical characteristics include a maximum dynamic impedance of 23Ω at the test current of 11.5mA and a leakage current limit of 750μA.
Feature Summary
- Glass passivated junction construction for enhanced stability
- High thermal performance supporting extended temperature ranges
- Built-in strain relief in the axial leaded package
Applications
- Voltage regulation circuits
- Overvoltage protection networks
- Reference voltage generation
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm packaging configuration and compliance status. Ensure the component matches the required electrical parameters for your design before procurement. Cross-reference datasheet revision numbers to guarantee accurate specifications are applied during integration.
Selection Notes
Select this component based on its 22V breakdown voltage and 1W power handling capability. Consider the DO-41 package dimensions for board layout constraints. Evaluate the thermal derating requirements if ambient temperatures exceed standard operating limits. Confirm compatibility with existing circuit impedance and leakage tolerances.
Part Context
This part belongs to the 1N47xx series of general-purpose Zener diodes manufactured by onsemi. The series covers a wide voltage range from 3.3V to 100V using standardized axial packages. These components are widely utilized in industrial and consumer electronics for basic voltage clamping and reference applications.
Replacement Considerations
Compatible substitutes include other manufacturers' 1N4748A variants meeting identical electrical specifications. Verify pinout compatibility and package dimensions when substituting. Ensure replacement parts maintain equivalent thermal and electrical ratings.
