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Infineon Technologies IRFI540NPBF

IRFI540NPBF N-Channel MOSFET, 100 V, 20 A, 52 mOhm

MPNIRFI540NPBF
End of Life

Infineon HEXFET® series, IRFI540NPBF, N-Channel MOSFET, 100 V drain-to-source, 20 A continuous drain at 25°C, 52 mOhm Rds(on) at 11 A and 10 V gate drive, TO-220 Full Pack through-hole package, -55°C to 175°C junction temperature.

$1.8Ref. price · indicative, final on quote
PackagingTO-220-3 Full Pack
RoHSROHS3 Compliant
SeriesHEXFET®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRFI540NPBF specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingThrough Hole
Drain to source voltage100 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C20A (Tc)
Power dissipation54W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs52mOhm @ 11A, 10V
Gate charge (Qg) (Max) @ vgs94 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1400 pF @ 25 V

Product details

52 mOhm at 11 A — the conduction-loss floor for a 100 V switch

TO-220 Full Pack — the isolated-tab advantage

The TO-220 Full Pack (TO-220AB Full-Pak) package has a fully isolated metal tab. No mica washer or thermal compound pad needed between the tab and the heatsink — the isolation is built into the moulded body. That saves assembly time and eliminates one failure point in high-vibration environments like pumps or industrial fans.

Frequently asked questions

What is the pinout of IRFI540NPBF?

Design engineers need pin configuration for PCB layout and circuit integration.

Where can I buy IRFI540NPBF?

Sourcing buyers need to find stock and place orders quickly to maintain production.

Is IRFI540NPBF obsolete or active?

Lifecycle status affects long-term availability and design viability for new projects.

What is the equivalent part for IRFI540NPBF?

Engineers and buyers need drop-in replacements or alternatives for supply chain flexibility.

What is the price of IRFI540NPBF?

Cost estimation is critical for BOM budgeting and procurement decisions.

What is the maximum power dissipation of IRFI540NPBF?

Thermal management in circuit design requires knowing power dissipation limits.