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2N4391 The Thomson-CSF 2N4391 is an N-Channel JFET designed for switch, chopper, and commutator applications. It features low noise and fast switching capabilities.
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2N4391

Available from 1 distributors
Mfr Name: Thomson-CSF
Thomson-CSF
The Thomson-CSF 2N4391 is an N-Channel JFET designed for switch, chopper, and commutator applications. It features low noise and fast switching capabilities.
✓ Total Stock: 12 pcs
$ Price Range: $0.77

2N4391 Available from 1 distributor

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2N4391 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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2N4391 Description

Short technical summary and product information.

The Thomson-CSF 2N4391 is an N-Channel Junction Field-Effect Transistor (JFET) suitable for various switching and signal processing applications. It is part of a series including the 2N4392 and 2N4393, offering different cutoff voltage characteristics.

 

Key electrical specifications include a typical low noise figure of 1.2 nV/√Hz and a Gate to Source Breakdown Voltage of -40V. The device exhibits low gate leakage currents, typically less than 50pA at room temperature. Different variants offer specific cutoff voltage ranges, with the 2N4393 being ideal for low-level power supplies due to its cutoff voltage less than 3.0V.

 

This JFET is available in multiple package options, including hermetically sealed TO-18 for military applications, through-hole TO-92, and surface-mount SOT-23. These packaging choices allow for flexibility in design and assembly processes, catering to both traditional and modern electronic circuit requirements.

 

The 2N4391 is targeted for applications such as low on-resistance analog switches, choppers, and commutators. Its fast switching characteristics and low noise performance make it a suitable component for signal conditioning and control circuits.

2N4391 Quick Information

Product Type: N-Channel JFET
Canonical Name: 2N4391 N-Channel JFET
Subcategory: N-Channel

2N4391 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

2N4391 Estimated Pricing

Qty Low High
1+ $0.77 $0.77

Estimated market price range - modelled values for guidance only, not live distributor offers.

2N4391 Features

  • N-Channel JFET for switching applications.
  • Low noise figure of 1.2 nV/√Hz typical.
  • Fast switching characteristics.
  • Low gate leakage current below 50pA.
  • Available in TO-18, TO-92, and SOT-23 packages.

2N4391 Applications

  • Low on-resistance analog switches.
  • Chopper circuits.
  • Commutator designs.
  • Low-level power supplies.

2N4391 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the Gate to Source Breakdown Voltage for the 2N4391?

The Gate to Source Breakdown Voltage is -40V.

What is the typical noise figure of the 2N4391?

The typical noise figure is 1.2 nV/√Hz.

What are the available package types for the 2N4391?

The 2N4391 is available in TO-18, TO-92, and SOT-23 packages.

What is the RoHS status of the 2N4391?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the 2N4391?

The Moisture Sensitivity Level is 1 Unlimited.

What is the REACH status for the 2N4391?

The REACH status is REACH Unaffected.

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