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Infineon Technologies BFP740FESDH6327XTSA1 — DC-DC Power Modules

Infineon BFP740FESDH6327XTSA1 NPN RF Transistor, 47 GHz fT

MPNBFP740FESDH6327XTSA1
End of Life

Infineon BFP740FESDH6327XTSA1 NPN RF transistor, 47 GHz transition frequency, gain 9 dB ~ 31 dB, noise figure 0.5 dB ~ 1.45 dB, 4.7 V Vceo, 45 mA Ic, 160 mW max power, 4-TSFP surface-mount package, ROHS3 compliant, active.

$0.57Ref. price · indicative, final on quote
Packaging4-SMD, Flat Leads
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BFP740FESDH6327XTSA1 specifications
ParameterValue
MountingSurface Mount
FET typeNPN
Voltage - collector emitter breakdown4.7V
Current - collector (Ic)45mA
DC current gain (hFE) (Min) @ ic, vce160 @ 25mA, 3V
Power - max160mW
Frequency - transition47GHz
Operating temperature150°C (TJ)
Gain9dB ~ 31dB
PackageTape & Reel (TR); Cut Tape (CT)
Case4-SMD, Flat Leads
Noise figure (dB typ @ f)0.5dB ~ 1.45dB @ 150MHz ~ 10GHz

Product details

47 GHz SiGe NPN — what this transistor is for

The Infineon BFP740FESDH6327XTSA1 is a silicon-germanium (SiGe) NPN RF transistor built for low-noise amplification from VHF up through Ku-band. Its 47 GHz transition frequency and noise figure that runs from 0.5 dB at 150 MHz to 1.45 dB at 10 GHz make it a natural first-stage LNA in base-station receivers, satellite downconverters, and microwave backhaul radios. The 4.7 V collector-emitter breakdown and 45 mA max collector current keep the bias low and the noise match tight — this is not a general-purpose switching transistor.

Gain spans 9 dB to 31 dB. The 4-TSFP package is a flat-lead SMD, 4-pin.

Frequently asked questions

Is BFP740FESDH6327XTSA1 obsolete or end of life?

No. The lifecycle status is active, meaning Infineon still manufactures it and there is no end-of-life notice. No LTB risk for new designs.

What is the noise figure of BFP740FESDH6327XTSA1?

The noise figure is 0.5 dB to 1.45 dB, measured at 150 MHz to 10 GHz. The lower end applies at VHF/UHF; the higher end at X-band.

What is the maximum frequency of BFP740FESDH6327XTSA1?

The transition frequency (fT) is 47 GHz. That is the frequency at which current gain drops to unity — usable gain extends well into Ku-band.