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1N4749A-T50A
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Product Detailed Parameters
- Description：DIODE ZENER 24V 1W DO41
- Series：-
- Mfr：onsemi
- Package：Cut Tape (CT),Tape & Box (TB)
- Voltage - Zener (Nom) (Vz)：24 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：25 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 18.2 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 1N4749A-T50A is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 24 V with a tolerance of ±5%. The device is rated for a total power dissipation of 1 W and operates within an extended temperature range from -65 °C to +200 °C. Packaged in the DO-41 axial leaded format, it exhibits a maximum reverse leakage current of 5 µA and a Zener impedance of 25 Ω at a test current of 10.5 mA.
Feature Summary
- Hermetically sealed glass package construction
- High thermal stability up to 200 °C
- Low leakage current characteristics
Applications
- Low voltage stabilizers
- Voltage reference circuits
- Overvoltage protection
Procurement Notes
Verify the specific suffix against official documentation, as the provided data references the T50R variant while the query specifies T50A. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as regulatory declarations vary by production batch and region. Ensure the component meets all environmental requirements for the intended deployment environment before finalizing procurement orders.
Selection Notes
Select this component when a stable 24 V reference is required in high-temperature environments. The DO-41 through-hole package facilitates manual assembly and prototyping. Verify that the 1 W power rating accommodates the expected thermal load without exceeding junction temperature limits under worst-case operating conditions.
Part Context
This part belongs to the standard 1N47xx series of one-watt Zener diodes. These components are widely utilized across industrial and consumer electronics for basic voltage regulation tasks. The series offers various voltage options within a standardized mechanical footprint, ensuring interchangeability among different manufacturers producing equivalent specifications.
Replacement Considerations
Equivalent parts include Vishay 1N4749A and NXP 1N4749A. Cross-referencing requires matching the 24 V nominal voltage, 1 W power rating, and DO-41 package dimensions.
