P2353UARP Circuit Protection

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Thyristors, the devices which form the basis of the category popularly known as Television Protection Devices (TVS), are commonly used in commercial and residential circuits. The P2353UARP is a three-terminal thyristor device, specially designed for use in high-speed applications involving transient voltage protection. It acts as a clamp in the path of incoming electrical surges, preventing even the smallest of surges from hitting other components in the system.

The structure of the P2353UARP consists of a three-terminal package with an integrated protective guard structure, integrated guard contact and a built-in gate aux-illiary unit. It is based on the principle of avalanche breakdown. It will break down and clamp transient voltages when they exceed the pre-determined value.

The P2353UARP is capable of handling high-energy pulses up to 2000 W (20 A peak). Its low avalanche voltage, maxiumum voltage clamping capability is 60V and it is available in a variety of voltage range packages. It is characterized by a low on-state voltage and a fast switch-on and switch-off times. The P2353UARP is also highly sensitive to voltage transients, as it is capable of detecting and switching off even the smallest of pulses.

When a transient voltage, such as from an ESD, occurs, the thyristor of the P2353UARP is triggered and the gate terminals are activated. This causes an avalanche breakdown: the current flows from the collector to the base, the collector terminal is open and the base terminal is clamped at a specified voltage level. This clamping prevents any further current flow and eliminates the transient voltage.

The P2353UARP is suitable for applications such as audio/visual systems, audio and digital IC protection, DVI drivers, power cords, and telecommunications signals. It is designed to handle surges in the 5 to 1000 V category, which makes it ideal for providing transient voltage protection and noise immunity in communications systems.

The design of the P2353UARP facilitates easy installation for high-density, multilayer application boards. The integrated guard structure, integrated guard contact and built-in gate auxiliary unit increase its reliability and reduce the number of components needed for the circuit. The device is designed for long-lasting performance, with a lifetime of over 10 years, making it suitable for a wide range of applications.

In summary, the P2353UARP is a three-terminal thyristor device designed for high-speed applications involving transient voltage protection. It is capable of handling high-energy pulses up to 2000W (20A peak) and provides superior protection against incoming electrical surges. It is also characterized by a low on-state voltage with fast switch-on and switch-off times, low avalanche voltage and maximum voltage clamping capability of 60V. With its easy installation and long-lasting performance, the P2353UARP is an ideal device for providing transient voltage protection and noise immunity in communications systems.

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