BSPD400480Y3K

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Mixed technology TVS, such as BSPD400480Y3K, refers to components which integrate different active and passive components to form integrated circuits to eliminate external components and reduce system complexity. BSPD400480Y3K is a kind of high frequency TVS, used for over-voltage protection of small signal devices. This mixed technology device has one diode and a resistor in parallel to control the clamping voltage of the diode.

BSPD400480Y3K is mainly used in the application fields like audio, video, communication and industrial control interface. Its operating principle is to provide constant clamping voltage to protect the interface circuit from high energy pulses.

The diode in the device provide the basic rectification function. The diode is usually connected to the positive rail and the resistor connected to the positive and negative rails of the circuit. When the input signal exceeds the normal working voltage of the device, the diode will be quickly turned on. This will lead to a rise in the input voltage that will be clamped at around the diode’s avalanche voltage. This allows the diode to absorb the surge energy and reduce the peak voltage to the safe working range.

The resistor in the device helps to maintain the voltage clamping level. When there is high energy surge, the diode will quickly conduct and the current will quickly rise. The resistor will provide additional damping to slow down the current rise and keep the voltage clamping under control.

BSPD400480Y3K has good surge absorption capability, good ESD protection performance, fast response speed and wide operating temperature range. It is both easy to use and reliable, making it an ideal TVS choice for the mentioned applications.

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