BLF147

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BLF147

+BOM

RF MOSFET Transistors BULK TNS-RFPR

  • ManufacturerAmpleon

  • Mfr. Part #BLF147

  • In Stock11753

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Specifications

Attribute Value
Packaging Tube
Standard Pack Qty 20

Overview

Description

The BLF147 is a VHF power transistor primarily used in radio frequency applications. It is designed for amplification purposes in the frequency range of 88 to 108 MHz, making it suitable for FM broadcast transmitters and other VHF communication devices. The BLF147 is known for its high efficiency and reliability, featuring a common source configuration. It typically operates with a high output power, often around 150 watts, depending on the specific application and circuit design. The transistor is built using silicon N-channel enhancement mode technology and is encapsulated in a flanged package, which provides good thermal performance and ease of mounting. Its design ensures stability and linearity, making it a popular choice for engineers and designers working on RF amplification projects. Proper heat dissipation and biasing are critical for its optimal performance and longevity. The BLF147 is an example of how solid-state technology has advanced, providing robust solutions for modern broadcasting and communication systems.

Equivalent

The BLF147 is a high-frequency power transistor often used in RF applications. Equivalent products might include NXP's BLF278, Ampleon's BLY90, and the Toshiba 2SC2782. These transistors share similar electrical characteristics and can be used as replacements in certain circuits. However, always check the datasheets for compatibility in terms of frequency range, power output, and other specifications before substituting components.

Features

The BLF147 is a VHF power transistor designed primarily for RF applications. Key features include:
1. Frequency Range: Operates efficiently in the VHF band, typically up to 175 MHz.
2. Power Output: Capable of delivering high power output, often used in broadcast and communication transmitters.
3. Linearity: Provides good linearity, making it suitable for amplitude modulation applications.
4. Efficiency: High efficiency in power conversion, minimizing heat generation during operation.
5. Ruggedness: Built to withstand high power levels and adverse operating conditions.
6. Package: Often housed in a ceramic package for enhanced thermal management.
7. Gain: Offers considerable power gain, suitable for amplification stages.
8. Impedance Matching: Designed for ease of matching with standard RF circuit impedances.
These features make the BLF147 ideal for use in various radio frequency amplification scenarios, particularly where reliability and efficiency are critical.

Pinout

The BLF147 is a high-frequency N-channel MOSFET transistor designed for RF and VHF power applications. It typically comes in a flange mount package. The pin configuration and functions are as follows:
1. Pin 1 (Gate): This is the control terminal where the input signal is applied. It regulates the current flow between the drain and source.
2. Pin 2 (Drain): This terminal is where the output signal is taken. It is connected to the load in the circuit.
3. Pin 3 (Source): This terminal is connected to the ground or common reference point in the circuit. It completes the circuit path for the current flow coming from the drain.
4. Flange (Source): The flange acts as a source connection and is also used for heat dissipation.
This configuration allows the BLF147 to be used effectively in RF amplification applications, providing efficient power output in VHF and UHF frequency bands.

Manufacturer

The BLF147 is a VHF power transistor typically used in radio frequency applications. It was originally manufactured by Philips, a Dutch multinational conglomerate known for its diversified technology and healthcare products. Philips Semiconductors, the division responsible for such components, became NXP Semiconductors in 2006 after being spun off. NXP Semiconductors is known for designing and manufacturing semiconductors for automotive, communication, and industrial applications, among others.

Application

The BLF147 is a VHF power transistor commonly used in RF power amplifiers. Its application areas include:
1. Broadcasting: Used in FM radio and television transmission systems.
2. Communication: Employed in VHF communication devices, such as two-way radios and amateur radio transmitters.
3. Industrial: Utilized in RF heating, plasma generation, and other industrial RF applications.
4. Military: Applied in VHF-band military communication systems and radar equipment.
5. Aerospace: Used in communication and telemetry systems within aerospace applications.
The transistor’s robust performance at VHF frequencies makes it suitable for various high-frequency amplification tasks requiring reliability and efficiency.

Package

The BLF147 is a high-frequency power transistor, and it typically comes in an SOT-126 package. This package type is designed for RF power transistors and provides efficient thermal performance and ease of mounting in RF applications.