STP4N90K5

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STP4N90K5 is a power transistor for high efficiency, low operating temperature and low noise, usually used for high power switching applications. It is a MOSFET type transistor (Metal-Oxide-Semiconductor Field-Effect Transistor) in a single configuration which helps keep the power consumed by the system to a minimum. This type of transistor is preferred over other types of transistors in power switching applications due to its low on-state resistance (RDSon), low input transistor switching losses and its excellent switching capabilities.

The STP4N90K5 is a popular power MOSFET which offers superior performance in high power switching applications due to its low on resistance. This low on resistance helps to decrease the power dissipation in the system and will allows higher switching frequencies to be achieved.

The construction of a STP4N90K5 MOSFET includes a drain, source, and gate terminals. The gate is used to control the flow of current through the channel formed by the source and drain. When the gate voltage is low (0V for an N channel device), no current can flow through the channel, but when the gate voltage is high (above the threshold voltage, VTH), current can flow through the channel. This makes STP4N90K5 MOSFETs ideal for switching applications since they can be switched from “off” (non-conducting) to “on” (conducting) with a very small voltage.

STP4N90K5 applications include motor control, robotics, switch gear, lighting, and other industrial power control. The STP4N90K5 can also be used in high power DC-to-DC converters and LED driving applications. The device ensures power flow with minimum power losses and lower-than-normal temperatures.

The working principle of a STP4N90K5 transistor is based on its ability to control the current flow by adjustment of the voltage applied across the gate and source terminals. As the gate voltage increases, so does the current flowing through the transistor, up to a certain point. Beyond that, additional voltage does not create any significant increase in current. This is because the STP4N90K5 has a very low on-resistance, which stays very constant over a wide range of gate voltages.

The STP4N90K5 is typically operated in either “on” mode, where the gate voltage is kept above the Pinch-Off-Voltage and the transistor effectively blocks any current, or in “off” mode, where the gate voltage is held below the Pinch-Off-Voltage and the device allows maximum current flow. By controlling the gate voltage, the current flow can be accurately adjusted.

In summary, the STP4N90K5 is a popular power MOSFET which is used in high power switching applications due to its low on resistance, low switching losses and excellent switching capabilities. The device is capable of controlling the current flow by adjusting the voltage applied across the gate and source terminals, which allows it to be used in a wide range of applications. The STP4N90K5 ensures maximum efficiency with minimum power losses and reduced operating temperatures.

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