BC640TFR

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The BC640TFR is a single-bipolar transistor in a small plastic package. It has a maximum collector current rating of 600mA, and a maximum collector-emitter voltage rating of 50V. The emitter current rating is 30mA.

The BC640TFR is designed to offer a low cost and reliable solution to many electronic circuits. It is suitable for use in audio, video and switching circuits and is capable of providing high gain, high frequency and high power in smaller packages. It is also ideal for use in low-noise applications.

The BC640TFR is a NPN transistor with a common collector configuration. It is constructed from a single chip of silicon, and consists of three pins in a plastic envelope. The base, collector and emitter are the three pins of this transistor. The base and collector pins are connected via the substrate.

The working principle of the BC640TFR involves a small current i to flow through the base-emitter connection. This current is amplified by the small current gain ß, and the amplified signal is output at the collector pin. This collector signal can then be used to control the main current flowing through the transistor.

When the base current is small, the resulting collector current will also be small, and the transistor will be in the cutoff region. This means that no current will flow through the collector-emitter junction. When the base current increases, the amplifier gain will decrease and the transistor will be in the active region. This means that now a large current will flow through the collector-emitter junction, and the output at the collector will increase.

The BC640TFR has a wide range of applications in electronic circuits. It can be used for switching, amplifier, audio and video applications. For example, it can be used as a switching device to control the current in an inductive load like motors or relay coils. It can also be used as an amplifier in audio and video circuits. Its small size and low cost adds to its usefulness in many applications.

In summary, the BC640TFR is a single-bipolar transistor in a small plastic package. It has a maximum collector current rating of 600mA, and a maximum collector-emitter voltage rating of 50V. It is used in audio, video and switching circuits, and is suitable for low-noise applications. The working principle of the BC640TFR involves a small current i to flow through the base-emitter connection. This current is amplified by the small current gain ß, and the amplified signal is output at the collector pin. This is used to control the main current flowing through the transistor.

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