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Infineon Technologies IRFB7440PBF
Infineon Technologies

IRFB7440PBF HEXFET N-Channel MOSFET, 40V 120A TO-220AB

MPNIRFB7440PBF
End of Life

Infineon IRFB7440PBF, HEXFET® StrongIRFET™ series, N-Channel MOSFET, 40V Vdss, 120A Id, 2.5mOhm Rds(on), 135nC Qg, TO-220AB, -55°C to 175°C.

$1.9Ref. price · indicative, final on quote
IRFB7440PBF datasheet
PackagingTO-220-3
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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

IRFB7440PBF Technical Specifications
ParameterValue
SeriesHEXFET®, StrongIRFET™
FET typeN-Channel
Mounting typeThrough Hole
Drain to source voltage40 V
Drive voltage (Max rds on, min rds on)6V, 10V
Current - continuous drain (Id) @ 25°C120A (Tc)
Power dissipation143W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id3.9V @ 100µA
Rds on (Max) @ id, vgs2.5mOhm @ 100A, 10V
Gate charge (Qg) (Max) @ vgs135 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds4730 pF @ 25 V

Product details

2.5 mOhm Rds(on) — the conduction-loss floor for a 40 V switch

The Infineon IRFB7440PBF is an N-channel MOSFET from the HEXFET® and StrongIRFET™ series, built for high-current switching where low on-resistance is the dominant selection criterion.

120 A continuous drain — sizing the output stage

Continuous drain current is rated 120 A at a case temperature of 25 °C, with a maximum power dissipation of 143 W.

Gate charge and drive voltage

Total gate charge is 135 nC at 10 V, with the Rds(on) specified at both 6 V and 10 V drive levels. A 10 V gate drive delivers the full 2.5 mOhm on-resistance; a 6 V rail is usable but the on-resistance will be higher.

Frequently asked questions

Is IRFB7440PBF RoHS compliant?

Yes, the IRFB7440PBF is ROHS3 compliant.