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Infineon Technologies IRFZ24NPBF

IRFZ24NPBF MOSFET, N-Channel 55V 17A TO-220-3

MPNIRFZ24NPBF
End of Life

Infineon HEXFET® IRFZ24NPBF, N-Channel MOSFET, 55 V Vdss, 17 A Id, 70 mOhm Rds(on) at 10 V, 45 W, TO-220-3, -55°C to 175°C.

$0.82Ref. price · indicative, final on quote
Infineon Technologies IRFZ24NPBF datasheet (PDF)
PackagingTO-220-3
RoHSROHS3 Compliant
SeriesHEXFET®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRFZ24NPBF specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingThrough Hole
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C17A (Tc)
Power dissipation45W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs70mOhm @ 10A, 10V
Gate charge (Qg) (Max) @ vgs20 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds370 pF @ 25 V

Product details

55 V, 17 A N-channel HEXFET in a TO-220-3

It targets low-voltage DC power switching — motor drives, power supplies, battery management, and automotive loads.

Gate drive and switching — what the 10 V requirement means

Gate charge is 20 nC at 10 V — a 1 A driver can switch it in about 20 ns, but the 370 pF input capacitance at 25 V means the driver must source and sink enough peak current to avoid miller plateau dwell. The ±20 V Vgs(max) gives headroom for gate-drive overshoot in hard-switching topologies.

The TO-220-3 (TO-220AB) package requires a heatsink for continuous currents above a few amps — the 45 W dissipation at Tc = 25°C assumes a low thermal resistance path to the heatsink. Through-hole mounting gives mechanical robustness in high-vibration environments compared to surface-mount alternatives.

Frequently asked questions

Can IRFZ24NPBF replace IRFZ44NPBF?

Both are 55 V N-channel HEXFETs in TO-220, but the IRFZ44NPBF is rated 55 A vs 17 A for the IRFZ24NPBF. The IRFZ24NPBF cannot handle the same current — verify the load current against the 17 A continuous rating before substitution.

What are typical applications for IRFZ24NPBF?

Low-voltage DC power switching: motor drives, DC-DC converters, battery management, automotive loads, and general-purpose power switching in 12 V or 24 V systems.