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Infineon Technologies IRLML0040TRPBF
Infineon Technologies

IRLML0040TRPBF N-Channel MOSFET, 40 V, 3.6 A, SOT-23

MPNIRLML0040TRPBF
End of Life

Infineon HEXFET® N-channel MOSFET, IRLML0040TRPBF, 40 V drain-source, 3.6 A continuous drain, 56 mOhm Rds(on) at 10 V, SOT-23 surface-mount package.

$0.48Ref. price · indicative, final on quote
IRLML0040TRPBF datasheet
PackagingTO-236-3, SC-59, SOT-23-3
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

IRLML0040TRPBF Technical Specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
Mounting typeSurface Mount
Drain to source voltage40 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C3.6A (Ta)
Power dissipation1.3W (Ta)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±16V
TechnologyMOSFET (Metal Oxide)
CaseTO-236-3, SC-59, SOT-23-3
Vgs(th) (Max) @ id2.5V @ 25µA
Rds on (Max) @ id, vgs56mOhm @ 3.6A, 10V
Gate charge (Qg) (Max) @ vgs3.9 nC @ 4.5 V
Input capacitance (Ciss) (Max) @ vds266 pF @ 25 V

Product details

56 mOhm at 3.6 A — the conduction-loss floor

The IRLML0040TRPBF: That Rds(on) figure sets the conduction-loss budget for a load switch or low-side driver in a SOT-23 footprint — at 3.6 A the dissipation is about 0.73 W, which sits inside the 1.3 W package limit but leaves little margin for ambient temperature above 25 °C without derating.

SOT-23 footprint and thermal reality

The SOT-23 footprint is a standard small-signal outline. The 1.3 W power dissipation is rated at ambient temperature (Ta), meaning the copper pad area on the PCB sets the real thermal resistance. Input capacitance is 266 pF at Vds = 25 V, and total gate charge is 3.9 nC at Vgs = 4.5 V — both low enough that a standard GPIO pin or a small gate-driver IC can switch the MOSFET at moderate frequencies without excessive drive current.

Frequently asked questions

What is the datasheet for IRLML0040TRPBF?

Design engineers need the datasheet to validate fit, pinout, and electrical characteristics.

Is IRLML0040TRPBF in stock?

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What is the equivalent of IRLML0040TRPBF?

If the part is unavailable, a drop-in equivalent is critical for production continuity.

Can I replace IRLML0040TRPBF with IRLML2402?

Engineers often need to verify if a similar part can be used without redesign.

What is the package of IRLML0040TRPBF?

Maintenance techs need to confirm physical dimensions for replacement on a PCB.