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1N4761A BK
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Product Detailed Parameters
- Description：DIODE ZENER 75V 1W DO41
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：75 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：175 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 56 V
- Operating Temperature：-65°C ~ 200°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Central Semiconductor Corp 1N4761A BK is a silicon Zener diode designed for voltage regulation in industrial and commercial applications. It features a nominal Zener voltage of 75 V with a 5% tolerance, tested at a current of 3.3 mA. The device dissipates 1.0 W at 50°C and operates within a temperature range of -65°C to +200°C. Electrical characteristics include a maximum Zener impedance of 175 Ω at the test current and a reverse leakage current of 5.0 μA at 71.4 V. The component utilizes a DO-41 axial leaded package.
Feature Summary
- Provides stable voltage regulation using silicon planar technology
- Features high thermal stability with an extended operating temperature range up to 200°C
- Designed for reliable performance in industrial and computer applications
Applications
- Industrial equipment voltage regulation
- Commercial power supply circuits
- Computer system protection
Procurement Notes
This part number has been officially transitioned to End of Life status by the manufacturer. No direct replacement products are currently available from Central Semiconductor. Procurement should be limited to existing stock only, as no new production runs are scheduled. Verify availability directly with the supplier before initiating any orders.
Selection Notes
Select this component for general-purpose voltage reference applications requiring a 75 V breakdown. Ensure the circuit design accommodates the specified 1.0 W power dissipation limit and the 175 Ω dynamic impedance at the rated test current. Consider the discontinued status when planning long-term product lifecycles.
Part Context
The 1N4761A BK belongs to the 1N4728A through 1N4764A series of 1-watt silicon Zener diodes manufactured by Central Semiconductor Corp. This series covers a wide voltage range from 3.3 V to 100 V with 5% tolerance. The specific model provides a 75 V regulation point within this lineup.
Replacement Considerations
No official replacement part numbers are listed by the manufacturer. The datasheet explicitly states N/A for replacements, indicating that sourcing must rely on remaining stock or third-party equivalents.
