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Infineon Technologies IRL3803SPBF — Discrete Semiconductors
Infineon Technologies

IRL3803SPBF HEXFET N-Channel MOSFET, 30 V, 140 A, 6 mOhm

MPNIRL3803SPBF
Active

IRL3803SPBF, Infineon HEXFET® series, N-Channel Power MOSFET, 30 V drain-source, 140 A switching current, 6 mOhm Rds(on) max at 71 A, 10 V gate drive, 140 nC gate charge at 4.5 V, surface mount D²Pak (TO-263), -55°C to 175°C junction temperature.

$1.46Ref. price · indicative, final on quote
IRL3803SPBF datasheet
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

IRL3803SPBF Technical Specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
Mounting_typeSurface Mount
Operating temperature high-55°C to 175°C(TJ)
Vgs±16 V
Power_w3.8
Package_typeBulk
Capacitance_uf0.005
Product_statusActive
Supply_voltage_v30.0
Vgs(Th) (Max) @ id1 V @ 250µA
Switching_current_a140.0
Rds on (Max) @ id, vgs6mOhm @ 71 A, 10 V
Gate charge (Qg) (Max) @ vgs140 nC @ 4.5 V

Product details

30 V, 140 A N-channel — what the ratings mean for the load

The Infineon IRL3803SPBF is a HEXFET N-channel power MOSFET rated for 30 V drain-source and 140 A switching current. The 6 mOhm max on-resistance at 71 A and 10 V gate drive determines conduction loss.

Temperature range and environment

Rated for a junction temperature range of -55°C to 175°C, this MOSFET suits under-hood automotive, industrial motor-drive, and power-supply environments. The 175°C maximum junction temperature is the absolute ceiling.

Lifecycle and sourcing

No official second-source or pin-compatible alternate is listed in the available records, so dual-sourcing would require qualification of a functionally equivalent 30 V N-channel in the same D²Pak footprint.

Frequently asked questions

What is the price of IRL3803SPBF?

Buyers need to compare pricing across distributors to minimize project cost.

Is IRL3803SPBF in stock?

Availability directly impacts production timelines and procurement decisions.

What is the datasheet for IRL3803SPBF?

Engineers require detailed electrical and thermal data to validate the design.

What is the replacement or equivalent for IRL3803SPBF?

Sourcing flexibility is key when the exact part is unavailable or on long lead time.

What are the specifications of IRL3803SPBF?

Accurate specs ensure the MOSFET meets the application's voltage, current, and Rds(on) requirements.