CPC3902ZTR

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The CPC3902ZTR is a silicon n-channel enhancement mode Fast Intrinsic Diode (FID) Field Effect Transistor (FET) intended for use in low frequency switching applications requiring a broad dynamic range. This device offers very low ON resistance and excellent linearity, making it a suitable alternative to the more standard devices used in many low power applications. This article will discuss the application fields and working principle of the CPC3902ZTR.

Application Fields

The CPC3902ZTR is well suited for a variety of low power applications, as its low cost and small size make it an attractive option. In particular, it has applications in power supplies, instrumentation, switching, logic and gaming applications, as well as industrial control and other low voltage applications. In addition, its low charge-to-discharge ratio makes it a good choice for low frequency switching applications.

The CPC3902ZTR is especially well suited for use in automotive, military and aerospace applications, as its low on-resistance and very low leakage offers superior performance in both high temperature and high vibration environments. Its wide operating range also makes it suitable for use in extreme temperature environments, where standard devices would not be able to operate reliably.

Working Principle

The CPC3902ZTR works on the principle of an enhancement-mode field effect transistor (FET). When it is turned on, an electric field is created which injects electrons into the gate, causing the gate voltage to rise, and resulting in a decrease in the device\'s channel resistance. As the channel resistance decreases further, the current through the gate increases, and the voltage at the gate decreases, resulting in the channel resistance increasing again - this is known as the saturation region. The resulting characteristics of the device\'s current flow can be used for either switching or high-current-carrying purposes.

In terms of its switching ability, the CPC3902ZTR offers excellent on-state control, with low gate drive power and channel resistance allowing for a fast switching time. The device also offers excellent linearity and low charge-to-discharge ratios, meaning that it can be used in situations where precision operation is required. Furthermore, its high voltage ratings (15V, 25V, 40V, and 100V) make it suitable for high voltage applications, and its low gate capacitance (2.2 pF) ensures low power dissipation.

The CPC3902ZTR is well suited for use in a wide range of low power applications, offering superior performance to more traditional devices. Its small size, low on-resistance, and excellent linearity make it an attractive option for many applications, while its high voltage ratings and low gate capacitance make it suitable for high voltage applications. In addition, its wide operating range makes it suitable for use in extreme environments, where more standard devices would not be able to operate reliably. As such, it is a great choice for many low frequency switching applications.

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