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Infineon Technologies BSC042N03MSGATMA1

Infineon BSC042N03MSGATMA1 N-Channel MOSFET, 30V, 4.2mOhm

MPNBSC042N03MSGATMA1
End of Life

Infineon OptiMOS N-Channel MOSFET, 30 V drain-source, 4.2 mOhm max on-resistance at 10 V gate drive, 93 A continuous drain at case temperature, 8-PowerTDFN package (PG-TDSON-8-5), -55°C to 150°C junction temperature range.

$0.9Ref. price · indicative, final on quote
Infineon Technologies BSC042N03MSGATMA1 datasheet (PDF)
Packaging8-PowerTDFN
RoHSROHS3 Compliant
SeriesOptiMOS™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BSC042N03MSGATMA1 specifications
ParameterValue
SeriesOptiMOS™
FET typeN-Channel
MountingSurface Mount
Drain to source voltage30 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C17A (Ta), 93A (Tc)
Power dissipation2.5W (Ta), 57W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
Case8-PowerTDFN
Vgs(th) (Max) @ id2V @ 250µA
Rds on (Max) @ id, vgs4.2mOhm @ 30A, 10V
Gate charge (Qg) (Max) @ vgs55 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds4300 pF @ 15 V

Product details

What this OptiMOS N-channel switch brings to the board

The Infineon BSC042N03MSGATMA1 is a 30 V N-channel MOSFET from the OptiMOS series. Its maximum on-resistance is 4.2 mOhm at a 10 V gate drive with 30 A of drain current.

Package and mounting — the thermal path is the spec

The 8-PowerTDFN package (Infineon code PG-TDSON-8-5) is a surface-mount power package with an exposed drain pad on the bottom. Input capacitance of 4300 pF at 15 V is typical for this on-resistance class; the gate driver sees that as the load per switching edge.

No direct pin-compatible second source appears in the record — the IPD50R950CEAUMA1 is a 500 V CoolMOS device in a different package, not a functional substitute for this 30 V part.

Frequently asked questions

What is the Rds(on) of BSC042N03MSGATMA1?

The maximum on-resistance is 4.2 mOhm at a gate-source voltage of 10 V with 30 A of drain current. That is the spec to use for conduction-loss calculations in a 12 V or 24 V rail.

Is BSC042N03MSGATMA1 lead-free?

Yes, it is ROHS3 compliant, which covers lead-free soldering requirements.