NP2300SAT3G Circuit Protection

Thyristor is a type of semiconductor device which has three or four layers of alternating P-type and N-type semiconductor material. It is the most basic device in switching technology with three terminals namely anode, cathode and control gate. Thyristors are widely used in various applications including power converters, DC motors, uninterruptible power supplies (UPS), circuit breakers, over-voltage protection components, voltage, current and frequency stabilization circuits. The NP2300SAT3G is a Thyristor-Based Static Unidirectional Surge Prism, ideal for use in industrial equipment, computer networks, etc. that require extremely low leakage current at high voltage.

NP2300SAT3G Application Field

The NP2300SAT3G is designed to protect electrical systems from transients that may occur due to switching events, wiring errors, power surges, lightning, and electrostatic discharge. It can be used to protect against both voltage and current transients up to 30kA. It is particularly well suited for sensitive equipment used in computer networks, industrial automation, telecommunications, process control, and general-purpose equipment.

NP2300SAT3G Working Principle

The working principle of Thyristor-Based Static Unidirectional Surge Prism is based on semiconductor junction. The NP2300SAT3G consists of two thyristors connected in series, along with additional components such as protection diodes, varistors, capacitors, and a zener diode. When a surge signal is detected, the thyristors will become forward biased and forward conduction will start. This forward conduction induces a voltage drop across the thyristor, providing a sink for the surge current. Additionally, protection diodes are present to prevent leakage current. The capacitors provide an impedance match to the surge signal, while the varistor provides over-voltage protection. The zener diode provides current protection by limiting the reverse leakage current.

In summary, the NP2300SAT3G is a Thyristor-Based Static Unidirectional Surge Prism ideal for use in sensitive equipment. It is designed to protect electrical systems from transients caused by various events, and uses components such as thyristors, varistors, capacitors, protection diodes, and a zener diode to provide over-voltage and current protection.