2N4898

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The 2N4898 is an NPN Silicon Epitaxial Planar Transistor type manufactured by Motorola. It belongs to the single bipolar junction transistor (BJT) category and it is often used in amplifier applications. This transistor is a small-signal transistor, meaning it is typically used in circuits with small signals. It is commonly used for audio amplifiers, oscillators and small switching applications.

The 2N4898 is made of a silicon epitaxial planar type on a monolithic substrate. This process makes the transistor sturdy and able to withstand high temperatures. The 2N4898 is especially known for its excellent gain characteristics. It has a high common-emitter current-gain of about 200, a low base-emitter voltage of about 0.6V and a high-current capability of about 500 mA. It can also handle very high collector voltages of up to 500V.

The 2N4898 is usually used in audio amplifiers, oscillators and small switching applications. It has a wide range of uses in applications that require amplification of audio signals and other low-frequency signals. Its high-voltage rating and current capabilities make it especially useful for switching applications.

The working principle of the 2N4898 is based on the fundamentals of semiconductor physics. It consists of three main sections: the base, the emitter and the collector. It is NPN-type transistor, meaning that the current flows from the base to the collector. When a small current at the base is applied, it causes a much larger current to flow from the emitter to the collector. This amplification of current is called the transistor effect. This effect makes the transistor useful for amplifying signals in many different applications.

The 2N4898 is well suited for a wide range of applications in audio amplification, oscillators and small switching applications. It is a highly reliable and robust transistor. With its excellent gain characteristics and high-voltage rating, it is one of the best small-signal transistors on the market. It can handle high temperatures and still maintain its reliability and excellent performance.

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