ST103S08PFN0

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Introduction: The ST103S08PFN0 is a three-terminal silicon-controlled rectifier (SCR) designed for high-voltage, low-power semiconductor switching applications. It is an SCR with a wide dynamic range, reliable performance and high efficiency. The SCR is available in either the traditional through-hole package or a surface-mount package.

Application Field: The ST103S08PFN0 SCR is well-suited for applications such as industrial control, inverter, welding, lighting, high voltage power distribution and motor control. Its broad dynamic range and robust performance make it well-suited for a variety of motor control applications. Additionally, the SCR is also suitable for use in a wide range of applications such as lighting and electrical equipment, industrial controls, and motor switching. With its high efficiency and durable performance, the ST103S08PFN0 is the ideal choice for cost-effective, reliable operation.

Working Principle: The ST103S08PFN0 SCR works by utilizing two distinct gate/collector operating regions. In the first region, the first gate/collector current pulse will cause the SCR to latch, thus closing the circuit. This latch-up condition can only be reset by cutting power or applying an opposite voltage to the gate input. In the second region, the second gate/collector current pulse will cause the SCR to switch, thus opening the circuit. The SCR will remain in this open state until the gate voltage is again exceeded.

Features: The ST103S08PFN0 SCR has a variety of features that make it suitable for low-power, high-voltage semiconductor switching applications. It has a nominal breakover voltage of 5V, a contact current rating of 5A, and a gate trigger current of 0.1mA. It is available with an unipolar gate control and a zero-voltage trigger rating of 40mA. Additionally, it is also available in both a through-hole and surface-mount package, making it easy to install.

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