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Vishay IRFZ48RSPBF

IRFZ48RSPBF N-Channel MOSFET, 60V 50A TO-263, 18mOhm

MPNIRFZ48RSPBF
End of Life

Infineon IRFZ48RSPBF N-Channel MOSFET, 60 V drain-source, 50 A continuous drain, 18 mOhm Rds(on) at 10 V gate drive, TO-263 (D²Pak) surface-mount package, -55°C to 175°C junction temperature.

$3.68Ref. price · indicative, final on quote
Vishay IRFZ48RSPBF datasheet (PDF)
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRFZ48RSPBF specifications
ParameterValue
FET typeN-Channel
MountingSurface Mount
Drain to source voltage60 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C50A (Tc)
Power dissipation190W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs18mOhm @ 43A, 10V
Gate charge (Qg) (Max) @ vgs110 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds2400 pF @ 25 V

Product details

18 mOhm on-resistance — what it buys the power stage

The IRFZ48RSPBF: The headline figure is the 18 mOhm maximum on-resistance at 43 A drain current with a 10 V gate drive — this sets the conduction-loss floor for the design. At full rated current, the I²R loss at 25°C junction is under 45 W, which the 190 W maximum power dissipation rating can handle with an appropriate heatsink.

Gate charge and drive requirements

The ±20 V maximum gate-source voltage gives margin for 12 V and 15 V gate-drive rails.

Frequently asked questions

Can IRFZ48RSPBF replace IRFZ48?

The IRFZ48RSPBF is the surface-mount TO-263 variant of the IRFZ48 family. The original IRFZ48 was a through-hole TO-220AB part; the RSPBF suffix indicates the D²Pak package and lead-free plating. Electrically the ratings are similar, but the package footprint is different — the TO-263 requires a surface-mount land pattern, not through-hole holes. A direct board-level replacement is not possible without a PCB layout change.