25TTS08FP

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Thyristors, also known as Silicon-Controlled Rectifiers (SCRs), are a type of electronically operated solid-state semiconductor switching device. They are commonly used in power control and switching applications and are preferred to other types of power electronics devices due to their quick response time, robustness and reliability. The 25TTS08FP SCR is an example of a general purpose desaturation protected thyristor, meaning it is designed to prevent harmful current from occurring during an overcurrent event.

25TTS08FP Application Field

The 25TTS08FP is specifically designed for motor control, power control and other power electronic applications. It is well suited for such applications due to its high OFF-state voltage drop, fast response time and inverse parallel operation capability. This SCR is mainly used in semiconductor load switching and phase control applications, such as speed and torque control of AC motors, current regulation and safety circuit protection.

25TTS08FP Working Principle

The 25TTS08FP functions as a switch that is triggered by the application of a small current. When current is applied to the gate terminal, a small charging transistor is turned on and begins to generate an electrical field that forward biases the anode and cathode of the SCR. This forward biasing results in current flow from the anode to the cathode and the SCR is now in its “ON” state. When current is removed from the gate terminal, the SCR will remain in its “ON” state until the current passing through it reduces to a very low level or until it reaches a current limit. The maximum current limit of the SCR is known as its “peak-repetitive” rating. Once the current limit is reached, the SCR will turn “OFF”, automatically disconnecting the circuit. The SCR can then be reset by reapplying current to the gate terminal.

Conclusion

The 25TTS08FP SCR is a versatile, fast-acting component designed for controlling electrical power in motor control and other power electronic applications. It is designed to prevent problems caused by overcurrent events, and its fast response time and robust design make it an ideal choice for such applications. In summary, the 25TTS08FP SCR is an efficient, reliable and cost-effective thyristor designed to control electrical power in motor applications and other power electronic applications.

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