SK008L

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SK008L is a bidirectional silicon-controlled rectifier (SCR)-based overvoltage protection device. It is a three-terminal device designed for bidirectional transient overvoltages protection applications. It is suitable for printed circuit boards (PCBs) applications, and it is designed to protect circuitry from full-wave overvoltages and transients up to 1000 volts, making it an ideal choice for applications where high overvoltage protection is required.The SK008L is a bidirectional SCR-based device, and it is composed of three terminals: anode, cathode, and gate. It is a low-voltage, low-current, low-capacitance three-terminal device that performs unidirectional or bidirectional blocking of both ac or dc voltage. It can handle transients up to 1000 volts, making it suitable for high overvoltage protection applications. The device is resistant to electrostatically induced damage (ESD).The SK008L is typically used in various overvoltage applications such as power supplies, lightning surge protection, photocopiers, and medical application. It features a fast recovery time and excellent high frequency noise rejection. The wide voltage range of the device ensures compatibility with both ac and dc voltage sources, making it ideal for applications requiring protection from induced and surges.Working principle:The SK008L is typically used as a unidirectional device, meaning that current flow is only allowed from anode to cathode. The device contains a thyristor-like element with two doped semiconductors that act as a static switch. The device is activated when a minimum current is applied to the gate terminal. This activates the device by allowing current to flow between the anode and the cathode.If the current flowing through the device exceeds the holding current, the device will cease to conduct. When the anode voltage exceeds the peak voltage holding threshold, the device will not conduct and the current flow is interrupted.In essence, the SK008L is a bidirectional, low-voltage, low-current, low-capacitance device that acts as a static switch. It is designed to protect circuits from transients up to 1000 volts and handle full-wave overvoltages. It is designed to be used in evaluation and protection applications, where it is typically used to block current flow between the anode and the cathode.

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