Skip to main content
Log in
Infineon Technologies IRF9540NSTRR — Discrete Semiconductors

IRF9540NSTRR P-Channel HEXFET MOSFET, 100V 23A, D2PAK

MPNIRF9540NSTRR
Obsolete

IRF9540NSTRR, Infineon HEXFET® P-Channel Power MOSFET, 100V Vdss, 23A Id, 117mOhm Rds(on) at 10V, D2PAK (TO-263) surface mount, -55°C to 150°C.

Infineon Technologies IRF9540NSTRR datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRF9540NSTRR specifications
ParameterValue
SeriesHEXFET®
FET typeP-Channel
MountingSurface Mount
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)
PackageTape & Reel (TR)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
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

P-channel 100V 23A — high-side load switching

The P-channel polarity simplifies high-side drive — the source connects to the positive rail and the load sits between drain and ground, eliminating the need for a charge-pump gate driver. On-resistance is 117 mOhm maximum at 11 A with 10 V gate drive.

D2PAK package — thermal and footprint considerations

Housed in a D2PAK (TO-263) surface-mount package with two leads plus the tab. Power dissipation is rated at 140 W at the case, derating to 3.8 W in still air at 25°C ambient.

Gate drive and input capacitance

Input capacitance is 1300 pF at 25 V drain-source — this, combined with the gate charge, determines the switching losses at a given frequency.

Frequently asked questions

What is a suitable replacement for IRF9540NSTRR?

The part is obsolete; designers need a drop-in or functional replacement to avoid redesign.

Is IRF9540NSTRR obsolete?

Buyers and engineers must know lifecycle status to plan for end-of-life and avoid supply disruptions.

Where to buy IRF9540NSTRR in stock?

Sourcing buyers need current inventory to fill BOM lines or find last-time buy opportunities.

IRF9540NSTRR datasheet PDF?

Design engineers validate electrical parameters and footprint before integrating the part.

IRF9540NSTRR price per unit?

Buyers need cost data for budgeting and comparing alternative parts.

IRF9540NSTRR pin configuration?

Maintenance techs replacing a failed unit must confirm pinout compatibility.