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Infineon Technologies IRF9540NL — Discrete Semiconductors

IRF9540NL P-Channel HEXFET MOSFET, 100V 23A 117mΩ TO-262

MPNIRF9540NL
Obsolete

Infineon IRF9540NL, HEXFET® series, P-Channel MOSFET, 100V Vdss, 23A Id, 117mOhm Rds(on) @ 11A 10V, TO-262-3 (I²Pak), Through Hole, -55°C to 150°C.

$1.3900Ref. price · indicative, final on quote
Infineon Technologies IRF9540NL datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRF9540NL specifications
ParameterValue
SeriesHEXFET®
FET typeP-Channel
MountingThrough Hole
Drain to source voltage100 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C23A (Tc)
Power dissipation3.8W (Ta), 140W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-262-3 Long Leads, I²Pak, TO-262AA
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs117mOhm @ 11A, 10V
Gate charge (Qg) (Max) @ vgs97 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1300 pF @ 25 V

Product details

Infineon lists the IRF9540NL as obsolete.

100 V, 23 A P-channel — the load-switching envelope

TO-262 through-hole — footprint and heatsink considerations

The IRF9540NL comes in a TO-262-3 (I²Pak) through-hole package, which is a lead-formed variant of the TO-220 family with long leads intended for vertical mounting or direct solder into a PCB. The supplier device package is TO-262. Unlike the more common TO-220, the TO-262's leads are straight and longer, which affects the mechanical fit in existing heatsink clips or pre-drilled mounting holes. If the board was laid out for a TO-220 footprint, the IRF9540NL's lead form may require a minor layout adjustment or a different clip.

Frequently asked questions

Is IRF9540NL obsolete?

Buyers need to know if the part is end-of-life to plan replacements or verify availability.

What is the replacement for IRF9540NL?

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Where can I buy IRF9540NL?

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What is the datasheet for IRF9540NL?

Design engineers need datasheet for pinout, electrical characteristics, and thermal data to validate fit.

What is the price of IRF9540NL?

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What is the pinout of IRF9540NL?

Technicians and engineers need pin assignments for layout and troubleshooting.