2N4391 The ESC 2N4391 is an N-Channel JFET designed for switch, chopper, and commutator applications. It features a low noise profile and fast switching capabilities.
Mfr Part #:

2N4391

Available from 1 distributors
Mfr Name: ESC
ESC
The ESC 2N4391 is an N-Channel JFET designed for switch, chopper, and commutator applications. It features a low noise profile and fast switching capabilities.
Total Stock: 2,053 pcs
$ Price Range: $1.93

2N4391 Available from 1 distributor

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,053 pcs
2053 pcs On Request 1 On Request On Request 24+ On Request On Request

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 InterFET 2N4391 is an N-Channel JFET designed for switch, chopper, and commutator applications. It offers a low noise characteristic of 1.2 nV/√Hz typical and fast switching speeds.

 

Key electrical specifications include a Gate to Source Breakdown Voltage of -40V and a Drain to Source Saturation Current of 50mA (typical for 2N4391). The Gate to Source Cutoff Voltage varies by model, with the 2N4393 having a cutoff voltage less than 3.0V, making it suitable for low-level power supplies.

 

Available in multiple package options including Through-Hole TO-18, Through-Hole TO-92, and Surface Mount SOT-23, the 2N4391 is versatile for various board layouts. The TO-18 package is hermetically sealed and suitable for military applications. Gate leakages are typically less than 50pA at room temperature.

2N4391 Quick Information

Product Type: 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+ $1.93 $1.93

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

2N4391 Features

  • N-Channel JFET for switching applications.
  • Low noise performance at 1.2 nV/√Hz.
  • Fast switching speeds for dynamic circuits.
  • Available in TO-18, TO-92, and SOT-23.
  • Low gate leakage current below 50pA.

2N4391 Applications

  • Ideal for analog switch designs.
  • Suitable for chopper circuits.
  • Used in commutator applications.
  • Low-level power supply designs.
  • Military application suitability.

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 Drain to Source Saturation Current for the 2N4391?

The typical Drain to Source Saturation Current is 50mA.

What is the typical Gate to Source Cutoff Voltage for the 2N4391?

The typical Gate to Source Cutoff Voltage is -4V.

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.

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