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BFG540 - NXP

Description: NXP BFG540 NPN RF Bipolar Transistor, 120 mA, 15 V, 4-Pin SOT

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PCB Footprints
BFG540 - NXP PCB footprint - Other - Other - SOT143B_2026-1.1
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3D Models
BFG540 - NXP  - 3D model - Other - SOT143B_2026-1.1
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BFG540 Details

  • Manufacturer Part Number:

    BFG540

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    PLASTIC PACKAGE-4

  • Pin Count:

    4

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.21.00.75

  • Manufacturer:

    NXP Semiconductors

  • YTEOL:

    0

  • Additional Feature:

    HIGH RELIABILITY

  • Case Connection:

    COLLECTOR

  • Collector Current-Max (IC):

    0.12 A

  • Collector-Base Capacitance-Max:

    0.9 pF

  • Collector-Emitter Voltage-Max:

    15 V

  • Configuration:

    SINGLE

  • DC Current Gain-Min (hFE):

    60

  • Highest Frequency Band:

    L BAND

  • JESD-30 Code:

    R-PDSO-G4

  • JESD-609 Code:

    e3

  • Moisture Sensitivity Level:

    1

  • Number of Elements:

    1

  • Number of Terminals:

    4

  • Operating Temperature-Max:

    150 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Polarity/Channel Type:

    NPN

  • Power Dissipation Ambient-Max:

    0.5 W

  • Power Dissipation-Max (Abs):

    0.4 W

  • Qualification Status:

    Not Qualified

  • Reference Standard:

    CECC

  • Surface Mount:

    YES

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Transistor Application:

    AMPLIFIER

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    9000 MHz

BFG540 Frequently Asked Questions (FAQs)

  • The maximum safe operating area (SOA) for the BFG540 is not explicitly stated in the datasheet, but it can be estimated based on the device's thermal resistance, maximum junction temperature, and power dissipation. As a general guideline, NXP recommends limiting the device's power dissipation to 1.5 W at 25°C to ensure reliable operation.
  • To ensure stable operation of the BFG540 in high-frequency applications, it's essential to follow proper PCB layout and design guidelines, such as minimizing lead lengths, using a solid ground plane, and decoupling the device with suitable capacitors. Additionally, consider using a series resistor and/or a ferrite bead to dampen oscillations and improve stability.
  • The BFG540 is a sensitive device and requires proper ESD protection to prevent damage. NXP recommends using a human-body model (HBM) ESD protection circuit with a minimum of 2 kV rating, and a machine-model (MM) ESD protection circuit with a minimum of 200 V rating. Additionally, follow proper handling and storage procedures to minimize the risk of ESD damage.
  • Yes, the BFG540 can be used in a push-pull amplifier configuration, but it's essential to ensure that the device is properly biased and matched to prevent thermal runaway and oscillations. Additionally, consider using a suitable output transformer and/or a common-mode choke to improve the amplifier's performance and stability.
  • The BFG540 has a relatively high thermal resistance, so it's essential to implement a suitable thermal management strategy to prevent overheating. This can include using a heat sink with a thermal resistance of less than 10°C/W, ensuring good airflow around the device, and minimizing power dissipation through proper circuit design and component selection.

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About NXP

NXP Semiconductors is a leading manufacturer of semiconductor devices with a wide range of semiconductor solutions, including microcontrollers, sensors, connectivity solutions, power management ICs, and security solutions. These products are used in a variety of applications such as automotive, industrial automation, smart homes, mobile devices, and more. NXP Semiconductors is one of the world’s largest semiconductor companies and is headquartered in Eindhoven, the Netherlands.

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