2SC4731S-AY

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The 2SC4731S-AY is a bipolar junction transistor (BJT) from Toshiba. It is an NPN type transistor that is used for amplification and switching applications in electronic circuits. This transistor is made from a silicon material and features an epitaxial planar polysilicon transistor base. It has a maximum power dissipation of 300mW and a maximum collector current of 1A.

The 2SC4731S-AY is a high-powered, single-junction transistor that is primarily used in power amplifiers and power supplies. It is designed to provide excellent frequency characteristics, low thermal resistance, and high-speed switching performance. It has a relatively low saturation voltage, making it an ideal choice for high-frequency applications. The 2SC4731S-AY is also used in applications such as audio power amplifiers, RF power amplifiers, and Class D amplifiers.

The main working principle of the 2SC4731S-AY is the same as for any other BJT, which is to amplify or switch signals using the base-collector junction. In this particular transistor, the base-collector junction is made from the epitaxial planar polysilicon material, allowing it to have excellent performance in high-frequency applications. In operation, the collector current is controlled by applying a voltage to the base. This base voltage causes a current to flow across the base-collector junction, which in turn causes a larger current to flow through the collector and into the emitter, allowing the transistor to amplify signals.

The 2SC4731S-AY is well suited for use in switching circuits, as it can handle a maximum of 1A of collector current. This makes it ideal for controlling the power of motors, motors speed, switching high-power LEDs and other similar applications. As well as its high-power performance, the 2SC4731S-AY also has a low saturation voltage, making it suitable for high-frequency applications. The low thermal resistance of this transistor also ensures excellent thermal performance and a long lifetime.

In conclusion, the 2SC4731S-AY is a high-powered, single-junction bipolar junction transistor from Toshiba. It is used primarily for amplification and switching applications, with a maximum power dissipation of 300mW and collector current of 1A. It has excellent frequency characteristics, low thermal resistance, and high-speed switching performance. This makes the 2SC4731S-AY suitable for use in audio power amplifiers, RF power amplifiers, Class D amplifiers, and other similar applications.

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