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Infineon Technologies IRFR7440TRPBF

IRFR7440TRPBF N-Channel MOSFET, 40 V, 90 A, 2.4 mOhm Rds(on)

MPNIRFR7440TRPBF
End of Life

Infineon HEXFET® IRFR7440TRPBF, N-Channel MOSFET, 40 V Vdss, 90 A Id, 2.4 mOhm Rds(on), 134 nC Qg, -55 to 175 °C, PG-TO252-3 (DPak).

$1.46Ref. price · indicative, final on quote
Infineon Technologies IRFR7440TRPBF datasheet (PDF)
PackagingTO-252-3, DPak (2 Leads + Tab), SC-63
RoHSROHS3 Compliant
SeriesHEXFET®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRFR7440TRPBF specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingSurface Mount
Drain to source voltage40 V
Drive voltage (Max rds on, min rds on)6V, 10V
Current - continuous drain (Id) @ 25°C90A (Tc)
Power dissipation140W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Vgs(th) (Max) @ id3.9V @ 100µA
Rds on (Max) @ id, vgs2.4mOhm @ 90A, 10V
Gate charge (Qg) (Max) @ vgs134 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds4610 pF @ 25 V

Product details

2.4 mOhm Rds(on) at 90 A — the conduction-loss floor for a 40 V rail

Gate charge and switching — what 134 nC means for the driver

The total gate charge of 134 nC at 10 V is the energy the gate driver must deliver per switching cycle. Input capacitance is 4610 pF at 25 V Vds.

Temperature grade and application envelope

The gate threshold voltage maximum is 3.9 V at 100 µA drain current. With a 6 V to 10 V drive range for minimum Rds(on), a 5 V logic-level gate signal will not fully enhance the channel — you need a 10 V rail or a dedicated gate-driver IC to hit the 2.4 mOhm spec.

Frequently asked questions

What is the price of IRFR7440TRPBF in volume?

Buyers need to compare cost for BOM or bulk orders to stay within budget.

Where can I buy IRFR7440TRPBF?

Transactional intent: immediate purchase decision requires known distribution channels.

What is the equivalent of IRFR7440TRPBF?

Designers and buyers need drop-in alternatives for multi-sourcing or obsolescence planning.

Is IRFR7440TRPBF in stock?

Availability directly impacts lead time and production schedule; core transaction driver.

What is the maximum drain current of IRFR7440TRPBF?

Critical spec for design validation; buyers need to verify part handles required load.

What is the lifecycle status of IRFR7440TRPBF?

Sourcing risk assessment: active vs. obsolete determines long-term availability and second sources.