IRFL4105 IRFL4105 is a 55V N-Channel MOSFET from Infineon Technologies. It features a continuous drain current of 3.7A and low on-resistance of 45mΩ in a SOT-223 surface-mount package.
Mfr Part #:

IRFL4105

Available from 1 distributors
Mfr Name: Infineon Technologies
Infineon Technologies
IRFL4105 is a 55V N-Channel MOSFET from Infineon Technologies. It features a continuous drain current of 3.7A and low on-resistance of 45mΩ in a SOT-223 surface-mount package.
✓ Total Stock: 4,000 pcs
$ Price Range: $0.88

IRFL4105 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
4,000 pcs
4000 pcs On Request 1 On Request On Request On Request On Request On Request

IRFL4105 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
Halogen Free
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Storage Temperature
Supplier Device Package
Technology
Termination Style
Vgs (Max)
Vgs(th) (Max) @ Id

IRFL4105 Description

Short technical summary and product information.

The IRFL4105 is a 55V N-Channel MOSFET from Infineon Technologies, part of the HEXFET family. It utilizes advanced process technology to achieve ultra-low on-resistance of 45mΩ at Vgs=10V and Id=3.7A. The device is fully avalanche rated with a single pulse avalanche energy of 110mJ and features fast switching with a typical total gate charge of 23nC.

 

Designed for surface-mount applications, the IRFL4105 is housed in a SOT-223 package with gull wing terminals. It supports continuous drain currents of 3.7A at 25°C ambient and 5.2A at 25°C case temperature. The operating junction temperature range is -55°C to 150°C, with maximum power dissipation of 1.0W (PCB mount at Ta=25°C) and 2.1W (Tc=25°C).

 

Typical applications include DC-DC converters, load switching, and power management in portable and industrial equipment. The device is supplied in tape and reel packaging with a standard quantity of 2500 pieces. It is lead-free (PbF) and RoHS3 compliant, though RoHS status is unverified.

IRFL4105 Quick Information

Product Type: MOSFET
Canonical Name: IRFL4105 N-Channel MOSFET
Subcategory: N-Channel MOSFET

IRFL4105 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected
Lead Free: No

IRFL4105 Estimated Pricing

Qty Low High
1+ $0.88 $0.88

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

IRFL4105 Features

  • 55V drain-source breakdown voltage.
  • 3.7A continuous drain current at 25°C.
  • Low on-resistance of 45 milliohms.
  • Surface-mount SOT-223 package.
  • Fully avalanche rated.

IRFL4105 Applications

  • Used in DC-DC converter circuits.
  • Suitable for load switching applications.
  • Ideal for power management in portable devices.
  • Applicable in motor control systems.

IRFL4105 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the IRFL4105?

The drain-to-source breakdown voltage (Vdss) is 55V minimum at Vgs=0V, Id=250µA.

What package is the IRFL4105 available in?

The IRFL4105 is available in a TO-261-4 / TO-261AA package, with a supplier device package of SOT-223. It is a surface-mount package with gull wing terminals.

What is the operating temperature range of the IRFL4105?

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

Is the IRFL4105 RoHS compliant?

The IRFL4105 is listed as RoHS3 Compliant and lead-free (PbF), but this status is unverified and has conflicting sources.

What is the continuous drain current of the IRFL4105?

The continuous drain current is 3.7A at Ta=25°C (Vgs=10V) and 5.2A at Tc=25°C (Vgs=10V).

What is the on-resistance of the IRFL4105?

The maximum drain-to-source on-resistance is 45mΩ at Vgs=10V and Id=3.7A.

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