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Infineon Technologies IRFZ44VZSPBF — Discrete Semiconductors

IRFZ44VZSPBF N-Channel MOSFET, 60V 57A D2PAK, NRND

MPNIRFZ44VZSPBF
NRND

IRFZ44VZSPBF, International Rectifier HEXFET® N-Channel MOSFET, 60 V Vdss, 57 A continuous drain, 12 mΩ Rds(on) at 34 A, 10 V gate drive, D2PAK (TO-263) surface mount, -55°C to 175°C operating range.

$1.0840Ref. price · indicative, final on quote
Infineon Technologies IRFZ44VZSPBF datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRFZ44VZSPBF specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingSurface Mount
Drain to source voltage60 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C57A (Tc)
Power dissipation92W (Tc)
Operating temperature-55°C~175°C(TJ)
PackageBulk
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs12mOhm @ 34A, 10V
Gate charge (Qg) (Max) @ vgs65 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1690 pF @ 25 V

Product details

It comes in a D2PAK (TO-263) surface-mount package with the tab as the drain connection.

This means International Rectifier (now Infineon) will not invest in long-term production support for this specific order code, and a last-time-buy window or eventual discontinuation is the expected path.

The 60 V Vdss rating places this part in the 48 V / 60 V bus class — suitable for motor drives, DC-DC converters, and battery management in automotive and industrial gear. The 57 A continuous drain current is a package-limited number at 25°C case temperature; real-world current will be lower once you derate for ambient temperature and switching losses.

The D2PAK (TO-263) surface-mount package dissipates up to 92 W at the case temperature. Without adequate thermal vias and a copper pour, the junction temperature will exceed the 175°C maximum long before the 57 A current rating is reached.

Frequently asked questions

Is IRFZ44VZSPBF obsolete or NRND?

It is not fully discontinued but is no longer recommended for new designs.

What are the exact specs of IRFZ44VZSPBF?

It comes in a D2PAK (TO-263) surface-mount package.

Does IRFZ44VZSPBF have a TO-220 equivalent?

The available records do not list a direct TO-220 equivalent for this specific order code. The IRFZ44VZSPBF is only documented in the D2PAK surface-mount package. For a through-hole alternative, a different part number from the same HEXFET family would need to be selected based on the same 60 V / 57 A / 12 mΩ ratings.