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Infineon Technologies BTF3050TEATMA1 — Sensors & Transducers

BTF3050TEATMA1 Infineon Low-Side Power Switch – 40 mOhm, 3 A

MPNBTF3050TEATMA1
End of Life

Infineon BTF3050TEATMA1, a single-channel low-side power switch in PG-TO252-5-11 (DPAK), 40 mOhm typical Rds(on), 3 A continuous output, 40 V max load, with integrated fault protection.

$1.56Ref. price · indicative, final on quote
Infineon Technologies BTF3050TEATMA1 datasheet (PDF)
PackagingTO-252-5, DPAK (4 Leads + Tab), TO-252AD
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BTF3050TEATMA1 specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load40V (Max)
Voltage - supply (Vcc (Vdd))Not Required
Output current3A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesSlew Rate Controlled
Rds on40mOhm
CaseTO-252-5, DPAK (4 Leads + Tab), TO-252AD
Fault protectionCurrent Limiting (Fixed), Over Temperature, Over Voltage
Output configurationLow Side
Ratio - Input:Output1:1

Product details

40 mOhm low-side switch with integrated protection

The BTF3050TEATMA1 is a single-channel N-channel low-side power switch from Infineon, designed for general-purpose switched loads up to 3 A continuous. The switch is controlled by a simple On/Off logic input (non-inverting) and requires no external Vcc supply — the gate drive is self-supplied from the load voltage, simplifying the BOM for a basic high-side-driver replacement.

Fault protection and temperature range

Three integrated fault protections — current limiting (fixed), over-temperature shutdown, and over-voltage clamp — eliminate the need for external supervisory components on the load path. The slew-rate controlled turn-on reduces EMI radiated from the load wiring.

Active production and package availability

Infineon lists the BTF3050TEATMA1 as Active (current production) with ROHS3 compliance.

Frequently asked questions

Does BTF3050TEATMA1 have overcurrent protection?

Yes — the device includes fixed current limiting as part of its integrated fault protection set, alongside over-temperature and over-voltage protection.

What is the closest functional second-source for BTF3050TEATMA1?

Infineon's BTS142DATMA1 (HITFET® series) is the nearest functional peer: it is also a single low-side N-channel switch with On/Off interface, non-inverting input, and the same fault protection set. The key parametric difference is Rds(on): 23 mOhm typical on the BTS142 vs 40 mOhm on the BTF3050, and the BTS142 is rated for 4.6 A continuous output vs 3 A. The BTS142 also adds an auto-restart feature. Package and pinout differ — confirm the PCB footprint before substituting.