2N5684

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The 2N5684 is a silicon NPN epitaxial planar transistor designed for general purpose small signal and switching applications. It is intended for high voltage, high current, and low noise amplification.

This device can act as a standard base small signal amplifier, or as a switch when used together with a driver. As an amplifier, it has medium power gain with low noise and low distortion, whereas as a switch, it is capable of rapidly switching with high efficiency.

Application Field of 2N5684

The 2N5684 is most commonly used for switching and low/medium voltage / current power amplification applications. This type of transistor can be found in amplifiers, DC motor control systems, motor control systems, inverters, switching amplifiers and other circuits where low voltage and current control is required.

It is very suitable for applications requiring high speed switching and low noise amplification, such as relays and other switching components. Moreover, this type of transistor is used in audio applications as well, such as preamplifiers, CD or cassette player amps, FM radios and sound reinforcement systems.

2N5684 Working Principle

When the voltage is applied to the input, the current enters the base region of the transistor and the current is amplified in the collector region. The base region acts as a control terminal and governs the amount of current flowing from the collector region to the emitter region.

The transistor acts as an amplifier because it increases the current gain, allowing a small input current to control a large output current. The current gain (hFE) of the transistor is determined by the ratio of collector current over the base current. The higher the ratio, the higher the current gain.

The 2N5684 has a wide range of applications because of its low power requirements and its low voltage gain. It is also able to switch between two different voltages, offering stability at both high and low voltage states. The 2N5684 can amplify both AC and DC signals provided that the input voltage or current is within the specified limits.

The transistor can be used in linear and switching applications, as well as audio-frequency amplification up to a few hundred kHz. This type of transistor is used in amplifiers, high voltage power supplies, motor control systems, inverters, and junction transistors. It is also commonly used in coupling, high speed switching and other circuits requiring low noise amplification.

Overall, the 2N5684 is a versatile and efficient NPN transistor which can be used in a wide range of applications. It is a low-cost, small-signal transistor that is ideal for high-voltage, high-current, and low-noise amplification, as well as for signal switching applications.

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