STFW1N105K3 The STFW1N105K3 is an N-channel Power MOSFET from STMicroelectronics with a 1050V drain-source voltage and 1.4A continuous current rating. It is housed in a TO-3PF package.
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STFW1N105K3

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STFW1N105K3 is an N-channel Power MOSFET from STMicroelectronics with a 1050V drain-source voltage and 1.4A continuous current rating. It is housed in a TO-3PF package.
✓ Total Stock: 128,850 pcs
$ Price Range: $2.56

STFW1N105K3 Available from 1 distributor

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STFW1N105K3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Drain to Source Voltage (Vdss)
Drive Voltage (Max Rds On, Min Rds On)
FET Type
Gate Charge (Qg) (Max) @ Vgs
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Supplier Device Package
Supplier Package
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

STFW1N105K3 Description

Short technical summary and product information.

The STFW1N105K3 is an N-channel SuperMESH3™ Power MOSFET manufactured by STMicroelectronics. It offers a high drain-source voltage of 1050V and a continuous drain current of 1.4A at 25°C case temperature. The device features a low on-resistance of 11 Ohm typical at 600mA and 10V gate-source voltage, and a gate charge of 13 nC typical.

 

Designed for demanding switching applications, this MOSFET boasts minimized gate charge, excellent avalanche performance, and very low intrinsic capacitance. Its operating junction temperature ranges from -55°C to 150°C. The STFW1N105K3 is supplied in a TO-3PF package suitable for through-hole mounting.

 

Key electrical characteristics include an input capacitance of 180 pF at 100V and a gate-source voltage range of ±30V. The total power dissipation is rated at 60W at 25°C case temperature. This device is part of STMicroelectronics' SuperMESH™ technology advancements, providing superior dynamic performance and high avalanche capability.

STFW1N105K3 Quick Information

Product Type: Power MOSFET
Canonical Name: STFW1N105K3 N-channel 1050V Power MOSFET
Subcategory: N-Channel

STFW1N105K3 Compliance

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

STFW1N105K3 Estimated Pricing

Qty Low High
1+ $2.56 $2.56

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

STFW1N105K3 Features

  • 1050V drain-source voltage rating.
  • 1.4A continuous drain current.
  • 11 Ohm typical on-resistance.
  • 13 nC gate charge.
  • TO-3PF through-hole package.

STFW1N105K3 Applications

  • High-voltage switching power supplies.
  • Power factor correction circuits.
  • Flyback converter designs.
  • DC-DC converters up to 1050V.

STFW1N105K3 FAQs

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

1050V.

What is the continuous drain current rating?

1.4A at Tc=25°C.

What is the typical on-resistance?

8Ω typical, maximum 11Ω at 600mA and 10V.

What is the operating temperature range?

-55°C to 150°C junction temperature.

What package is the device available in?

TO-3PF-3 Full Pack through-hole.

What is the gate threshold voltage?

4.5V at 50µA.

What technology is used?

SuperMESH3.

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