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1N4749A-T50R
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Product Detailed Parameters
- Description：DIODE ZENER 24V 1W DO41
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT),Bulk
- 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-T50R is a single silicon Zener diode with a nominal voltage of 24 V and a power dissipation rating of 1 W. It features a 5% voltage tolerance and operates within a temperature range of -65 °C to +200 °C. The device utilizes a DO-41-2 through-hole package and exhibits a maximum reverse leakage current of 5 uA at a test current of 10.5 mA. Its Zener impedance is specified at 25 Ohms.
Feature Summary
- Provides stable voltage regulation in a hermetically sealed glass axial leaded package
- Capable of operating at elevated temperatures up to 200 °C
- Offers precise voltage tolerance for reliable circuit performance
Applications
- Low voltage stabilizers
- Voltage reference circuits
- Overvoltage protection
Procurement Notes
Verify the component status before procurement, as official documentation indicates this specific part number may be obsolete or subject to discontinuation by the manufacturer. Confirm availability through authorized distributors and ensure compliance with RoHS and REACH requirements. Check for valid datasheets and environmental files to validate specifications prior to integration into designs.
Selection Notes
Select this component for applications requiring a 24 V reference in through-hole designs. Ensure the circuit can accommodate the 1 W power dissipation limit and the specific thermal characteristics of the DO-41 package. Verify that the 5% tolerance meets the design requirements and that the operating environment stays within the specified temperature range.
Part Context
This component belongs to the 1N4749A series of Zener diodes manufactured by onsemi. It is part of a broader family of low-voltage regulator diodes available in the DO-41 package. The suffix T50R typically denotes reel packaging, distinguishing it from other packaging variants like ammo packs.
Replacement Considerations
Publicly confirmed substitute part numbers are not explicitly listed in the provided source material. Cross-reference with generic 1N4749A equivalents from other manufacturers only if electrical parameters match exactly.
