FDW6923

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The FDW6923 is a high-voltage, high-current MOSFET with a breakdown voltage of 440V and an input capacitance of 120 pF. It is used in applications such as power supplies, motor controllers, and audio amplifiers. It is commonly used in switch-mode power supplies and can be used in high-efficiency and low-noise circuits. The FDW6923 is a N-channel MOSFET and has an on-resistance of 0.2 ohms when driven by 5V. The device has a gate threshold voltage of 6V and can handle currents up to 34A.

The FDW6923 has a working principle that utilizes the junction field effect and works by creating a conductive channel between the source and the drain. Charge carriers are repelled by an electric field and accumulate near the gate of the MOSFET which creates a strong electric field between the gate and the source. This electric field forces the carriers onto the channel, increasing the conductivity and allowing electric current to flow.

The FDW6923 can operate in either enhancement mode or depletion mode, with the latter being more common. In enhancement mode, the channel is normally off and a positive charge is applied to the gate to turn it on. In depletion mode, the channel is normally on and a negative charge is applied to the gate in order to reduce its conductivity. The threshold voltage for the gate determines which mode the device will operate in.

The FDW6923 has a wide range of applications in power conversion and motor control systems. It is particularly useful in switch-mode power supplies since it can handle high currents while providing good efficiency and low noise. It can also be used in motor controllers and audio amplifiers. In these applications, the device is connected in series with the load to regulate the current flow.

The FDW6923 is a suitable choice for heat-dissipation applications since it has excellent thermal characteristics. The device is also capable of handling high surge currents and has excellent reliability in extreme temperature environments. The ability to handle high voltages and currents in a small form factor make it a popular choice for power supply and motor control applications.

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