Dell Inspiron BFP540 Owner's Manual
Summary
Infineon BFP540 NPN Silicon RF transistor datasheet based on SIEGET-45 technology for high-gain low-noise amplifier applications at 1.8GHz. Specifications include 21dB maximum stable gain, 0.9dB noise figure, 30GHz transition frequency, 4.5V collector-emitter breakdown, 80mA collector current, 250mW power dissipation, gold metallization, and SOT343 surface-mount package with ESD handling precautions.
Page 1 Text Content
BFP540
NPN Silicon RF Transistor
• For highest gain low noise amplifier at 1.8 GHz • Outstanding Gms = 21 d B Noise Figure F = 0.9 d B • Gold metallization for high reliability VPS05605 • SIEGET 45 - Line
ESD: Electrostatic discharge sensitive device, observe handling precaution!
Type Marking Pin Configuration Package BFP540 ATs 1=B 2=E 3=C 4=E SOT343 Maximum Ratings Parameter Symbol Value Unit
Collector-emitter voltage VCEO 4.5
Collector-emitter voltage VCES Collector-base voltage VCBO Emitter-base voltage VEBO
Collector current IC m A
Base current IB
Total power dissipation1) Ptot m W
TS ≤ 77°C
Junction temperature °C
Ambient temperature TA -65 ... 150 Storage temperature Tstg -65 ... 150 Thermal Resistance Parameter Symbol Value Unit
Junction - soldering point2) Rth JS ≤ 290 K/W
1TS is measured on the collector lead at the soldering point to the pcb
2For calculation of Rth JA please refer to Application Note Thermal Resistance
Jan-28-20041
Page Summary Contents For Dell Inspiron BFP540 Owner's Manual
Manual Details
| Brand | Dell |
|---|---|
| Pages | 7 |
| File Size | 174.41 KB |
| Published | July 03, 2026 |
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Frequently Asked Questions
What is the typical noise figure at 1.8 GHz?
The typical noise figure (F) is 0.9 dB.
Is this device sensitive to static discharge?
Yes, it is an ESD sensitive device, so handling precautions should be observed.
What is the maximum allowable collector current?
The maximum specified collector current (I_C) is 80 mA.
Does the transistor have a power dissipation limit?
Total power dissipation (P_tot) must not exceed 290 mW.