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Infineon Technologies IRFB7430PBF
Infineon Technologies

IRFB7430PBF MOSFET, N-Ch 40V 195A TO-220, 1.3mOhm

MPNIRFB7430PBF
End of Life

Infineon HEXFET®, StrongIRFET™ IRFB7430PBF, N-Channel MOSFET, 40 V Vdss, 195 A Id, 1.3 mOhm Rds(on) at 10 V, 460 nC Qg, TO-220-3, -55 to 175 °C.

$3.52Ref. price · indicative, final on quote
IRFB7430PBF 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.
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Specifications

IRFB7430PBF 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°C195A (Tc)
Power dissipation375W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id3.9V @ 250µA
Rds on (Max) @ id, vgs1.3mOhm @ 100A, 10V
Gate charge (Qg) (Max) @ vgs460 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds14240 pF @ 25 V

Product details

What this MOSFET is and where it fits

The Infineon IRFB7430PBF is an N-channel power MOSFET from the HEXFET and StrongIRFET series, rated for 40 V drain-source and 195 A continuous drain current at 25 °C case temperature. Its 1.3 mOhm typical on-resistance at 100 A and 10 V gate drive makes it a low-conduction-loss switch for high-current DC rails, motor drives, and synchronous rectification stages. The TO-220AB through-hole package suits point-of-load regulators, battery isolation, and inverter legs where board-level heatsinking is practical. The -55 to 175 °C junction temperature range covers industrial and automotive under-hood environments without derating surprises.

Sourcing and lifecycle

The IRFB7430PBF carries an Active lifecycle status and ROHS3 compliance. For a BOM freeze, this part presents no last-time-buy risk.

Frequently asked questions

What is the closest pin-compatible alternative to the IRFB7430PBF?

Within the same StrongIRFET family, the IRFB7430 (without the PBF suffix) is the non-RoHS version — same die, same package, same electrical ratings. For a lower gate charge alternative at the same voltage and package class, look at Infineon's OptiMOS 40 V series; the trade-off is typically higher Rds(on) for lower Qg. No direct pin-compatible second source from another manufacturer is listed in the official cross-reference.

What is the IRFB7430PBF gate charge and why does it matter?

The total gate charge is 460 nC at 10 V. This is a high figure that dictates a gate driver capable of sourcing several amps of peak current if you plan to switch above a few tens of kHz. For low-frequency or soft-switched designs, the conduction loss advantage of the 1.3 mOhm Rds(on) outweighs the drive burden.