BC859CW,115

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BC859CW is a type of single bipolar junction transistor (BJT), which is mainly used in switching and amplification of small signal. It is a transistor with a small signal current gain ranging from 80 and 300. These transistors are typically used for switching and amplifying low-level audio signals, as well as for digital switching purposes. In terms of its physical dimensions, BC859CW measures 2.8mm by 1.2mm and has a maximum collector power dissipation of 625mW.

BC859CW is a NPN transistor with a collector-emitter voltage rating of 40V and an emitter-base voltage rating of 5V. It has an emitter current rating of 150mA and a collector current rating of 600mA. It also has a hFe, or gain, of 80-300. This transistor is often used as part of a larger circuit, and can be used to switch and amplify both AC and DC signals. It also has low noise performance and is able to handle high frequencies.

Applications of BC859CW vary, as it is a versatile transistor in terms of its uses. It is often used in audio and RF applications, such as amplifiers, due to its low noise performance and wide frequency range. It is also often used for digital switching, as it can handle the fast switching times required for digital applications. BC859CW is also used for RF power amplifiers, as well as in audio amplifiers. Finally, it is also often used in power switching applications, due to its high current rating.

The working principle of BC859CW follows that of other bipolar junction transistors. It works by allowing the flow of current from the collector to the emitter when voltage is applied to the base. This is known as forward biasing. With forward biasing, there is a small leakage current from collector to emitter, as well as a small amount of current from base to collector, known as the collector current. The combination of these two currents creates a larger current through the transistor, known as the collector current.

The gain of BC859CW is determined by the base current to the collector current ratio. As the base current increases, the gain also increases, allowing for greater amplification of the small signal. Conversely, as the base current decreases, the gain decreases, resulting in reduced amplification. At higher frequencies, the gain also tends to decrease. This is due to the increased effort required to switch the transistor quickly at these higher frequencies.

BC859CW is a versatile single bipolar junction transistor (BJT) that can be used for a variety of applications. It has a wide range of current ratings, a low noise performance, and a collector power dissipation of 625mW. Its gain ranges from 80-300 and it can be used to switch and amplify both AC and DC signals. Due to its versatility and wide range of applications, BC859CW is an ideal choice for a variety of projects.

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