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Infineon Technologies IRFZ44ESTRRPBF — Discrete Semiconductors

IRFZ44ESTRRPBF HEXFET® N-Channel MOSFET, 60V 48A D²Pak

MPNIRFZ44ESTRRPBF
Obsolete

Infineon HEXFET® IRFZ44ESTRRPBF, N-channel MOSFET, 60 V Vdss, 48 A continuous drain, 23 mOhm Rds(on) at 10 V, D²Pak (TO-263AB), -55°C to 175°C junction temperature.

$1.5100Ref. price · indicative, final on quote
Infineon Technologies IRFZ44ESTRRPBF datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRFZ44ESTRRPBF 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°C48A (Tc)
Power dissipation110W (Tc)
Operating temperature-55°C~175°C(TJ)
PackageTape & Reel (TR)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs23mOhm @ 29A, 10V
Gate charge (Qg) (Max) @ vgs60 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1360 pF @ 25 V

Product details

HEXFET® power switch — 60 V, 48 A, 23 mΩ in D²Pak

The Infineon IRFZ44ESTRRPBF is an N-channel enhancement-mode MOSFET from the HEXFET® family, built on a planar stripe trench technology.

These numbers define the gate-drive power and switching speed — the 60 nC Qg means a 1 A gate driver can switch the gate in about 60 ns, but the 1360 pF Ciss adds to the driver's reactive load.

The IRFZ44ESTRRPBF is listed as obsolete. Buyers should qualify an alternate N-channel MOSFET in the same 60 V / 48 A class and D²Pak footprint for new designs or long-term production support.

Frequently asked questions

Is IRFZ44ESTRRPBF obsolete?

Yes, the IRFZ44ESTRRPBF is listed as obsolete. Infineon has discontinued production. The part can still be sourced through independent distribution against an RFQ.

What is the replacement for IRFZ44ESTRRPBF?

No official replacement part number is recorded in the available lifecycle data. For new designs, select an N-channel MOSFET with similar 60 V Vdss, 48 A Id, 23 mΩ Rds(on) ratings in a D²Pak (TO-263) footprint. The IRFZ44N is a through-hole (TO-220) variant often cross-shopped, but it is not pin-compatible with the D²Pak surface-mount layout.