SFT1446-TL-H

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The SFT1446-TL-H is part of a family of discrete semiconductor products, specifically a single high-power Field-Effect Transistor (FET). It is an N-channel FET designed for high power amplifying and high-speed switching circuits. As such, it is typically used in a wide range of applications ranging from power supply circuits, power amplifiers and radio frequency devices in industrial and automotive industries, to communication receivers and high-speed logic devices used in modern digital electronics.

This specific device belongs to Fairchild’s SuperFET Family of power FETs, which are high power transistors built on a single Silicon substrate and manufactured using the latest advanced process technologies resulting in high-speed rugged devices capable of taking very high power. In particular, the SFT1446-TL-H is a single N-channel FET developed for high power amplifiers and high-speed switch circuits. It is rated for a maximum drain current of 4A and a maximum drain to source voltage of 100V.

The SFT1446-TL-H utilizes a patented design to achieve higher switching speeds and improved energy efficiency, as well as minimizing system cost by reducing the number of components and minimizing board area, making it extremely cost-effective. It has an operating temperature range from -55° to 150°, and a maximum power dissipation of 35W.

The working principle of the SFT1446-TL-H is based on the basic functioning principles of any FET. The FET uses the electric field phenomenon to control electron flow between its three terminals, between drain, gate and source. Voltage is applied to the gate terminal, which attracts and repels electrons and creates an electric field between the source and drain. Depending on the voltage applied to the gate terminal, the electric field strength between the source and drain can be increased or decreased, resulting in increased or decreased conduction between the source and drain terminals.

In a N-channel FET, the gate source behaves like a P-channel transistor. When a positive voltage is applied to the gate terminal, the electrons will be repelled, increasing the voltage between the source and drain, thus increasing conduction between the two terminals. Conversely, when a negative voltage is applied to the gate, the electrons will be attracted, decreasing the voltage between the source and the drain, thus reducing the conduction between the two terminals. In essence, by controlling the voltage applied to the gate terminal, the SFT1446-TL-H is able to control the flow of current through the device.

The SFT1446-TL-H can be used in a variety of applications, from high power switching and amplifying to high-speed logic operations. It is suited for such applications as DC and AC motor drives, uninterruptible power supplies, and automotive power applications. It can also be used in RF devices, such as transmitters, receivers, and communication networks, as well as for high-speed logic operations and power supplies. Additionally, the SFT1446-TL-H is a great choice for applications requiring high current and high power dissipation, and it is a great choice for applications in industrial and automotive, communications, and consumer electronics.

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