FZT491TA Discrete Semiconductor Products

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The FZT491TA is a NPN BJT, also known as a single bipolar transistor. It is designed for use in small signal amplification applications, such as amplifiers and radio frequency switches. The device has two collector-emitter terminals and one base-emitter terminal. It is capable of switching up to 50V with very low on-state resistance, enabling the device to be used for power switching applications. The FZT491TA is manufactured by ON Semiconductor, and is housed in a very small SOIC (Small Outline Integrated Circuit) package which makes it ideal for use in portable electronic devices.

The primary function of a single bipolar transistor is to amplify a signal. This device is composed of two p-type and one n-type semiconductor material, with a positive voltage applied to the base stabilizing current flow and allowing the current to flow when a positive voltage is applied to the emitter terminal. The base-emitter junction is a diode that is forward-biased when a positive voltage is applied to the emitter, causing the current to flow from the collector to the emitter. When this current flow is interrupted, the transistor turns off. As the base current is increased, the collector current will also increase (while the emitter current remains constant) creating an amplification effect.

The FZT491TA is designed for use in low-voltage and low-power applications. It is capable of switching up to 50V with very low on-state resistance, making it suitable for use in battery-powered circuits. The device has a low power dissipation and can operate at a wide range temperatures from -55 to 125 degrees Celsius, making it suitable for use in automotive and medical applications. Additionally, the FZT491TA features fast switching speeds with a rise and fall times of 15ns, making it suitable for use in high speed switching applications. Finally, the device is housed in a very small SOIC package, making it ideal for use in portable devices such as cell phones, mp3 players, and portable gaming systems.

In summary, the FZT491TA is a single bipolar transistor that is designed for use in low-voltage and low-power applications. It has two collector-emitter terminals and one base-emitter terminal, and is capable of switching up to 50V with very low on-state resistance. Additionally, the device has a low power dissipation and operates over a wide temperature range. Finally, it features fast switching speeds and is housed in a small SOIC package, making it suitable for use in portable electronic devices.

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