MMBF4391 The MMBF4391 is an N-Channel JFET from On Semiconductor designed for low-level analog switching applications. It features a 30V drain-source voltage and a 50mA current rating.
Mfr Part #:

MMBF4391

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The MMBF4391 is an N-Channel JFET from On Semiconductor designed for low-level analog switching applications. It features a 30V drain-source voltage and a 50mA current rating.
✓ Total Stock: 6,500 pcs
$ Price Range: $0.99

MMBF4391 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
6,500 pcs
6500 pcs On Request 1 On Request On Request On Request On Request On Request

MMBF4391 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
FET Type
Halogen Free
Input Capacitance
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power
Resistance
Supplier Device Package
Supplier Package
Voltage

MMBF4391 Description

Short technical summary and product information.

The MMBF4391 is an N-Channel JFET switching transistor manufactured by ON Semiconductor. It is designed for applications such as low-level analog switching, sample and hold circuits, and chopper-stabilized amplifiers.

 

Key electrical specifications include a maximum drain-source voltage of 30V and a maximum continuous drain current of 50mA at 20V. The device exhibits a low on-resistance of 30 Ohms and an input capacitance of 14pF at 20V. It operates within a temperature range of -55°C to 150°C.

 

This JFET comes in a compact SOT-23-3 surface-mount package, making it suitable for space-constrained designs. The device is Pb-free and halogen-free, complying with RoHS standards. Its robust construction and specified operating conditions ensure reliable performance in various electronic circuits.

 

ON Semiconductor also offers automotive-grade versions (S Prefix) that are AEC-Q101 qualified and PPAP capable, suitable for applications requiring unique site and control change requirements.

MMBF4391 Quick Information

Product Type: JFET Transistor
Canonical Name: MMBF4391 N-Channel JFET Switching Transistor
Subcategory: N-Channel

MMBF4391 Compliance

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

MMBF4391 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

MMBF4391 Features

  • N-Channel JFET for analog switching.
  • 30V drain-source voltage rating.
  • 50mA continuous drain current.
  • Low 30 Ohm on-resistance.
  • Compact SOT-23-3 surface-mount package.

MMBF4391 Applications

  • Low-level analog switching circuits.
  • Sample and hold circuits.
  • Chopper-stabilized amplifiers.
  • Automotive applications (S Prefix variants).

MMBF4391 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage for the MMBF4391?

The maximum drain-source voltage for the MMBF4391 is 30 Vdc.

What is the operating temperature range of the MMBF4391?

The MMBF4391 operates within a temperature range of -55°C to 150°C.

What type of JFET is the MMBF4391?

The MMBF4391 is an N-Channel JFET.

What is the RoHS status of the MMBF4391?

The MMBF4391 is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the MMBF4391?

The Moisture Sensitivity Level (MSL) for the MMBF4391 is 1.

What is the package type for the MMBF4391?

The MMBF4391 is available in a SOT-23-3 package.

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