- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for 2N4391
- Part Number 2N4391
- Manufacturer InterFET
- Pin Count 3
- Part Category JFET (N-Channel)
- Package Category Other
- Footprint Name Other - TO-18
- Released Date Jan 23, 2022
- Last Modified Date Jan 28, 2025 11:57 PM UTC
- Pinout / Pin List Click Here (Member Only)
2N4391 Details
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Manufacturer Part Number:
2N4391
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Rohs Code:
Yes
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Part Life Cycle Code:
Contact Manufacturer
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ECCN Code:
EAR99
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HTS Code:
8541.29.00.95
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Manufacturer:
InterFET Corporation
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Case Connection:
GATE
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Configuration:
SINGLE
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Drain-source On Resistance-Max:
30 Ω
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FET Technology:
JUNCTION
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JEDEC-95 Code:
TO-18
2N4391 Frequently Asked Questions (FAQs)
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The maximum operating temperature range for the 2N4391 is -55°C to +150°C, as specified in the datasheet. However, it's recommended to operate the device within a temperature range of -40°C to +125°C for optimal performance and reliability.
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To ensure the 2N4391 is properly biased for linear operation, you should set the gate-source voltage (Vgs) to around -2 to -4 volts, and the drain-source voltage (Vds) to around 10-20 volts. This will put the device in its linear region, allowing it to operate as a voltage-controlled current source.
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The maximum current handling capability of the 2N4391 is around 10-15 mA, depending on the specific application and operating conditions. It's essential to ensure the device is not subjected to excessive current to prevent overheating and damage.
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While the 2N4391 can be used as a switch, it's not the most suitable application for this device. The 2N4391 is primarily designed for linear amplification and voltage-controlled current source applications. If you need a switching device, consider using a dedicated switch transistor or a MOSFET instead.
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To protect the 2N4391 from ESD, handle the device by the body, avoid touching the leads or pins, and use an anti-static wrist strap or mat when handling the device. You can also use ESD protection devices, such as diodes or resistors, in your circuit design to prevent ESD damage.
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2N4391 Overview
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