Skip to main content
Infineon Technologies IRFSL4127PBF
Infineon Technologies

IRFSL4127PBF HEXFET N-Ch MOSFET, 200V 72A TO-262

MPNIRFSL4127PBF
End of Life

IRFSL4127PBF, HEXFET® N-Channel MOSFET, 200 V Vdss, 72 A Id at 25°C, 22 mOhm Rds(on) at 10 V, 150 nC Qg, TO-262 through-hole package, -55°C to 175°C junction temperature.

$6.0Ref. price · indicative, final on quote
IRFSL4127PBF datasheet
PackagingTO-262-3 Long Leads, I²Pak, TO-262AA
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

IRFSL4127PBF Technical Specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
Mounting typeThrough Hole
Drain to source voltage200 V
Current - continuous drain (Id) @ 25°C72A (Tc)
Power dissipation375W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
TechnologyMOSFET (Metal Oxide)
CaseTO-262-3 Long Leads, I²Pak, TO-262AA
Vgs(th) (Max) @ id5V @ 250µA
Rds on (Max) @ id, vgs22mOhm @ 44A, 10V
Gate charge (Qg) (Max) @ vgs150 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds5380 pF @ 50 V

Product details

200 V, 72 A N-channel — where this HEXFET fits

The IRFSL4127PBF is a 200 V, 72 A N-channel HEXFET in a TO-262 through-hole package.

Rds(on) at junction temperature — the real loss number

The 22 mOhm max is specified at 25°C junction with 10 V gate drive. At 125°C junction — a realistic operating point in a 375 W dissipation budget — Rds(on) typically rises by a factor of 1.6 to 1.8. Budget 35–40 mOhm hot for loss calculations, not the cold headline. Gate charge is 150 nC at 10 V. That is a moderate Qg for a 200 V, 72 A die — expect a gate-driver capable of sourcing 2–3 A peak to keep switching edges clean at 50–100 kHz. The 5380 pF input capacitance at 50 V Vds confirms the driver sees a significant capacitive load.

Sourcing and quoting for the BOM line

The through-hole TO-262 package is a standard pick-and-place candidate for wave-solder assembly.

Frequently asked questions

What is the price of IRFSL4127PBF?

Buyers need a price to budget and compare with alternatives before purchase.

Where can I buy IRFSL4127PBF?

Sourcing buyers need to identify authorized distributors and place orders promptly.

What is the pinout and pin configuration of IRFSL4127PBF?

Design engineers must verify pin compatibility with their PCB layout before using the part.

Is IRFSL4127PBF equivalent to any other MOSFET (e.g., IRF series)?

Engineers and procurement need alternatives for design flexibility or supply risk mitigation.

What is the lead time for IRFSL4127PBF from major distributors?

Lead time directly impacts production schedules and inventory planning.

Is IRFSL4127PBF obsolete or reaching end of life?

Brokers and long-term project planners need to know lifecycle status to avoid last-time buy risks.