圖片僅供參考

BF861B

Name: BF861B
Rating: 4.7 (12 reviews)

SMALL SIGNAL FIELD-EFFECT TRANSI

製造商
製造商。部分 #BF861B
包
資料表
有現貨的2704

+BOM RFQ

100%原創；新

24小時準備發貨

365天保修

RFQ&；獲得更多折扣

規格

Supplier	Flip Electronics
Package	Bulk
ProductStatus	Last Time Buy

概述

Description

The BF861B is a JFET (Junction Field-Effect Transistor) commonly used in low-noise applications due to its high input impedance and low noise characteristics. It features a N-channel configuration, making it suitable for various electronic circuits, including amplifiers and signal processing devices. The BF861B operates efficiently at low frequencies and is often utilized in RF (radio frequency) applications, audio equipment, and sensor technology.
With a maximum drain-source voltage of 30V and a low gate-source cutoff voltage, the device is versatile for different circuit designs. It is also favored for its linear characteristics and ease of use in analog circuits. Overall, the BF861B is a reliable choice for engineers and developers looking to enhance signal integrity in their projects.

Features

The BF861B is a high-performance RF transistor known for its low noise and high gain characteristics. Key features include:
1. Low Noise Figure: Ideal for RF amplification applications, it minimizes signal distortion.
2. High Gain: Provides substantial amplification, making it suitable for various communication systems.
3. Wide Frequency Range: Operates effectively across a broad frequency spectrum, typically from 500 MHz to 1 GHz.
4. Low Supply Voltage: Designed for low-voltage operation, enhancing power efficiency.
5. Compact Package: Available in small form factors, facilitating integration into compact designs.
6. High Linearity: Maintains signal integrity in linear applications, reducing intermodulation distortion.
These features make the BF861B suitable for applications in telecommunications, broadcast, and other RF systems.

Package

The BF861B is typically available in a SOT-23 package type. This is a small, surface-mount package commonly used for low-power RF applications.

Pinout

The BF861B is a low-noise, N-channel JFET (Junction Field-Effect Transistor) used primarily for RF amplification applications. It features a total of 3 pins.
The pin configuration is as follows:
1. Source (S) - This is the input terminal where the signal is applied.
2. Gate (G) - This terminal is used for controlling the flow of current; it is typically biased to a certain voltage to control the conduction of the device.
3. Drain (D) - This is the output terminal where the amplified signal is obtained.
The BF861B is characterized by its low noise figure, high transconductance, and suitability for high-frequency applications, making it a popular choice in RF and microwave circuits.

Manufacturer

The BF861B is manufactured by NXP Semiconductors, a global semiconductor company that designs and produces a wide range of electronic components and systems. NXP specializes in automotive, security, and connectivity solutions, and it is known for its innovations in radio frequency (RF) and mixed-signal integrated circuits. The company emerged from the spin-off of Philips’ semiconductor division and has since developed a strong presence in the industry, focusing on applications in areas such as IoT, automotive, and mobile communications. NXP is headquartered in Eindhoven, Netherlands, and operates worldwide, providing essential technologies for various electronic devices and systems.

Application

The BF861B is a low-noise N-channel MOSFET primarily used in RF amplification applications, including broadband and narrowband communication systems. Its low noise figure makes it suitable for use in low-noise amplifiers (LNAs), mixers, and oscillators. Additionally, it can be employed in various signal processing applications, satellite communication, and aerospace systems where high sensitivity and stability are required.

Equivalent

The BF861B is a low-noise JFET transistor commonly used in RF and amplifier applications. Equivalent products include the 2N5457, J310, and 2N4416. However, always verify specifications for voltage, current, and frequency response to ensure compatibility in your specific application.