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Infineon Technologies IRLZ44NL — Discrete Semiconductors

IRLZ44NL N-Channel MOSFET, 55V 47A, TO-262, Obsolete

MPNIRLZ44NL
Obsolete

IRLZ44NL, Infineon HEXFET® N-Channel MOSFET, 55V Vdss, 47A Id, 22mOhm Rds(on) @ 10V, logic-level gate drive, TO-262-3 (I²Pak) package, -55°C to 175°C junction temperature.

$1.4500Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRLZ44NL specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingThrough Hole
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)4V, 10V
Current - continuous drain (Id) @ 25°C47A (Tc)
Power dissipation3.8W (Ta), 110W (Tc)
Operating temperature-55°C~175°C(TJ)
PackageTube
Vgs±16V
TechnologyMOSFET (Metal Oxide)
CaseTO-262-3 Long Leads, I²Pak, TO-262AA
Vgs(th) (Max) @ id2V @ 250µA
Rds on (Max) @ id, vgs22mOhm @ 25A, 10V
Gate charge (Qg) (Max) @ vgs48 nC @ 5 V
Input capacitance (Ciss) (Max) @ vds1700 pF @ 25 V

Product details

What this N-channel HEXFET does and where it was designed in

The device is packaged in a through-hole TO-262 (I²Pak) with long leads, intended for PCB mounting with the tab soldered for heat sinking.

Sourcing this part now that it is obsolete

New-design win activity should not target this order code. The buyer should qualify the substitute against the original design's thermal and switching requirements.

Frequently asked questions

What is a direct replacement for IRLZ44NL?

A functionally equivalent replacement within the Infineon HEXFET logic-level N-channel family should be selected by matching or exceeding the 55 V drain-source voltage, 47 A continuous drain current, and through-hole TO-262 package, while verifying gate-threshold voltage compatibility with the existing driver.