IRFZ44NPBF The IRFZ44NPBF is a 55V, 49A N-Channel Power MOSFET from Infineon Technologies. It features low on-resistance of 17.5mOhm and is housed in a TO-220AB package.
Mfr Part #:

IRFZ44NPBF

Available from 3 distributors
Mfr Name: Infineon Technologies
Infineon Technologies
The IRFZ44NPBF is a 55V, 49A N-Channel Power MOSFET from Infineon Technologies. It features low on-resistance of 17.5mOhm and is housed in a TO-220AB package.
✓ Total Stock: 18,150 pcs
$ Price Range: $0.47 - $1.44

IRFZ44NPBF Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
18,000 pcs
18000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
85 pcs
85 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
65 pcs
65 pcs On Request 10 On Request On Request On Request On Request On Request

IRFZ44NPBF 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
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

IRFZ44NPBF Description

Short technical summary and product information.

The IRFZ44NPBF is a HEXFET Power MOSFET from Infineon Technologies (formerly International Rectifier). It is designed for high efficiency and fast switching applications. With a drain-source voltage rating of 55V and a continuous drain current of 49A at 25°C, it is suitable for medium-power switching and amplification circuits. The on-resistance is typically 17.5mOhm at 25A and 10V gate drive, ensuring low conduction losses. The device is fully avalanche rated and features a junction temperature range of -55°C to 175°C. It is housed in the industry-standard TO-220AB through-hole package, which offers low thermal resistance (1.5°C/W junction-to-case) and easy mounting. The TO-220 package is suitable for power dissipation up to 94W. The device is also lead-free and RoHS compliant (datasheet indicates lead-free). Key electrical characteristics include a total gate charge of 63nC, input capacitance of 1470pF, and fast switching times (ton=12ns, tr=60ns, toff=44ns, tf=45ns).

IRFZ44NPBF Quick Information

Product Type: MOSFET
Canonical Name: IRFZ44NPBF HEXFET Power MOSFET

IRFZ44NPBF Compliance

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

IRFZ44NPBF Estimated Pricing

Qty Low High
1+ $1.44 $1.44
10+ $0.91 $0.91
50+ $0.67 $0.67
100+ $0.60 $0.60
500+ $0.47 $0.47

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

IRFZ44NPBF Features

  • N-Channel MOSFET with 55V drain-source voltage.
  • Continuous drain current of 49A at 25°C.
  • Ultra low on-resistance of 17.5mOhm.
  • Fast switching with 12ns turn-on delay.
  • Fully avalanche rated for ruggedness.

IRFZ44NPBF Applications

  • Used in DC-DC converter circuits.
  • Ideal for motor drive applications.
  • Suitable for power supply switching.
  • Power management and switching applications.

IRFZ44NPBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the drain-source voltage rating of the IRFZ44NPBF?

The drain-source voltage (Vdss) is 55V.

What is the maximum continuous drain current?

At case temperature 25°C, the continuous drain current is 49A; at 100°C, it is 35A.

What is the on-resistance (Rds(on)) of the IRFZ44NPBF?

The maximum on-resistance is 17.5mOhm at 25A drain current and 10V gate voltage.

What is the operating temperature range?

The junction temperature range is -55°C to 175°C.

What package is the IRFZ44NPBF available in?

It is available in a TO-220-3 (TO-220AB) through-hole package.

Is the IRFZ44NPBF RoHS compliant?

It is listed as RoHS3 compliant, but this status is unverified and should be confirmed with the manufacturer.

What is the total gate charge of the IRFZ44NPBF?

The maximum total gate charge at 10V gate voltage is 63nC.

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