FDN339AN The FDN339AN is an N-Channel MOSFET from onsemi with a 20V drain-source voltage rating and 3A continuous drain current. It features a low 35mOhm on-resistance at 4.5V gate drive.
Mfr Part #:

FDN339AN

Available from 6 distributors
Mfr Name: On Semiconductor
On Semiconductor
The FDN339AN is an N-Channel MOSFET from onsemi with a 20V drain-source voltage rating and 3A continuous drain current. It features a low 35mOhm on-resistance at 4.5V gate drive.
✓ Total Stock: 27,179 pcs
$ Price Range: $0.41 - $0.92

FDN339AN Available from 6 distributors

✓ Authorised
✓ Non-Authorised

FDN339AN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Drain to Source Voltage (Vdss)
Drive Voltage (Max Rds On, Min Rds On)
FET Type
Gate Charge (Qg) (Max) @ Vgs
Halogen Free
Industrial Grade
Input Capacitance (Ciss) (Max) @ Vds
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

FDN339AN Description

Short technical summary and product information.

The FDN339AN is an N-Channel enhancement-mode MOSFET manufactured by onsemi, designed for low-voltage switching applications. It is rated for a maximum drain-to-source voltage of 20V and can handle a continuous drain current of 3A at 25°C ambient temperature.

 

Key electrical characteristics include a maximum on-resistance of 35mOhm at a gate drive of 4.5V and 3A drain current, and a typical gate threshold voltage of 1.5V at 250µA. The device features a total gate charge of 10nC at 4.5V and an input capacitance of 700pF at 10V drain-source voltage, enabling efficient switching at moderate frequencies.

 

The FDN339AN is housed in a compact SOT-23-3 surface-mount package (also available as TO-236-3 or SC-59), making it suitable for space-constrained designs. It operates over a junction temperature range of -55°C to 150°C and has a maximum power dissipation of 500mW at ambient temperature.

FDN339AN Quick Information

Product Type: MOSFET
Series: SUPERSOT3
Canonical Name: FDN339AN N-Channel 20V 3A MOSFET
Subcategory: Single N-Channel

FDN339AN Compliance

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

FDN339AN Estimated Pricing

Qty Low High
1+ $0.92 $0.92
10+ $0.66 $0.66
100+ $0.41 $0.41
3,000+ $0.41 $0.41

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

FDN339AN Features

  • N-Channel MOSFET rated for 20V drain-source voltage.
  • Continuous drain current of 3A at 25°C.
  • Low on-resistance of 35mOhm at 4.5V gate drive.
  • Logic-level gate threshold voltage of 1.5V max.
  • Compact SOT-23-3 surface-mount package.

FDN339AN Applications

  • Ideal for low-voltage load switching applications.
  • Suitable for power management in portable devices.
  • Used in DC-DC converter and regulator circuits.
  • Applicable for battery protection and charging circuits.

FDN339AN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the FDN339AN?

The maximum drain-to-source voltage (Vdss) is 20V.

What is the continuous drain current rating of the FDN339AN?

The continuous drain current is 3A at 25°C ambient temperature.

What is the on-resistance of the FDN339AN?

The maximum on-resistance is 35mOhm at a gate-source voltage of 4.5V and drain current of 3A.

What is the gate threshold voltage of the FDN339AN?

The maximum gate threshold voltage is 1.5V at a drain current of 250µA.

What package does the FDN339AN come in?

The FDN339AN is available in a SOT-23-3 surface-mount package, also known as TO-236-3 or SC-59.

What is the operating temperature range of the FDN339AN?

The junction operating temperature range is -55°C to 150°C.

Is the FDN339AN RoHS compliant?

The RoHS status is listed as compliant, but this information is unverified and should be confirmed from official documentation.

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