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1N4732A
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Product Detailed Parameters
- Description：DIODE ZENER 4.7V 1W DO41
- Series：-
- Mfr：onsemi
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：4.7 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：8 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 1 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 1N4732A is a single-channel general-purpose Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 4.7 V with a tolerance of 5%. The device supports a maximum power dissipation of 1 W and operates within a temperature range of -65 °C to +200 °C. Key electrical parameters include a maximum reverse leakage current of 10 µA and a Zener impedance of 8 Ω at a test current of 53 mA. It is housed in a DO-41 (DO-204AL) through-hole package.
Feature Summary
- Provides stable voltage regulation with a nominal 4.7 V output.
- Capable of handling up to 1 W of power dissipation.
- Constructed with hermetically sealed glass encapsulation.
Applications
- Automation systems
- Broadband access infrastructure
- Home audio system components
- Mobile communication infrastructure
- Test and measurement equipment
Procurement Notes
Verify the specific suffix against official datasheets, as packaging variants such as 'ATR' or 'ATA' may exist. Confirm RoHS compliance status directly from the manufacturer's documentation prior to integration. Ensure the procurement channel sources genuine onsemi products to guarantee performance reliability and adherence to specified electrical tolerances.
Selection Notes
Select this component when a precise 4.7 V reference is required in through-hole designs. The 5% tolerance suits standard regulation tasks rather than high-precision instrumentation. Verify that the circuit can accommodate the 1 W thermal load and that the operating environment remains within the specified -65 °C to +200 °C range for optimal longevity.
Part Context
This part belongs to the 1N47 series of silicon Zener diodes manufactured by onsemi. The series offers various voltage ratings in a standardized DO-41 package. These diodes are widely used in discrete semiconductor circuits for basic voltage clamping and reference generation tasks across industrial and consumer electronics sectors.
Replacement Considerations
Direct substitutes within the same series include parts like the 1N4748A for different voltage requirements. Cross-reference with other manufacturers offering JEDEC-compliant 1N47xx equivalents, ensuring identical DO-41 pinout and 1 W power rating.
FAQ
What is the maximum reverse leakage current?
The maximum reverse leakage current is 10 µA.
Is the device suitable for high-frequency switching?
No, it is a general-purpose Zener diode intended for voltage regulation, not high-frequency switching applications.
