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1N4739A-T50A
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Product Detailed Parameters
- Description：DIODE ZENER 9.1V 1W DO204AL
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：9.1 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：5 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 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 Fairchild Semiconductor 1N4739A-T50A is a single silicon Zener diode with a nominal voltage of 9.1 V and a tolerance of ±5%. It operates in the DO-41 axial lead package, supporting a maximum power dissipation of 1.0 W at a lead temperature of 50°C or less. The device features a maximum Zener impedance of 5 Ω at a test current of 28 mA and a leakage current of 0.5 µA at 7 V. It withstands non-repetitive peak reverse currents up to 500 mA and functions within an operating and storage temperature range of −65°C to +200°C.
Feature Summary
- Provides stable voltage regulation through controlled Zener breakdown characteristics.
- Utilizes a glass case construction for reliable performance across extreme temperatures.
- Designed for through-hole mounting using standard axial leads.
Applications
- Voltage reference circuits
- Overvoltage protection networks
- Clipping and clamping applications
Procurement Notes
Verify that the ordering suffix T50A corresponds to fan-fold packaging as specified in the official documentation. Confirm compliance with RoHS and halide-free requirements by checking the specific datasheet revision. Ensure the component matches the original Fairchild Semiconductor specifications before finalizing procurement orders.
Selection Notes
Select this component when a precise 9.1 V reference is required with low dynamic impedance. The wide thermal operating range supports demanding environments. Verify that the 1.0 W power rating aligns with the circuit's thermal dissipation needs under continuous operation conditions.
Part Context
This part belongs to the 1N4728A through 1N4758A series of Zener diodes manufactured by onsemi (formerly Fairchild Semiconductor). The series utilizes the standardized DO-41 axial lead package. The T50A suffix specifically denotes fan-fold shipping configuration rather than altering the electrical function.
Replacement Considerations
Cross-reference with other manufacturers offering the 1N4739A designation. Ensure replacement parts match the 9.1 V nominal voltage, 1.0 W power rating, and DO-41 package dimensions for direct interchangeability.
