SK015L

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Thyristors - SCRs (Silicon Controlled Rectifiers) are three-terminal solid-state switches that control the conduction of current between its Anode and Cathode terminals. The central terminal, or Gate terminal, acts as a control lead and determines whether or not the device will be turned on or off. The SK015L is a two-pin miniature SCR with a breakdown voltage of 200V and can handle a maximum power of 100W. It has a fast turn-off and high blocking voltage capability, making it suitable for various applications where minimal size and weight are important.

SK015L Application Field

The SK015L SCR is well suited for motor speed control, temperature control, voltage regulation and reversing applications. In motor speed control applications, the SCR is used to vary the speed of an AC motor by using the device to control the amount of time that the current flows through the motor. It can also be used to regulate voltage, by using it to switch a power supply on and off in order to maintain a constant voltage level. In reversing applications, the SCR can be used to reverse the direction of current in the motor, allowing for fast and efficient direction change. Moreover, the SK015L is ideal for various automotive applications, due to its high-reliability and robust design.

SK015L Working Principle

The working principle of the SK015L SCR is based on the concept of a “reverse diode,” which is a diode that behaves like a switch, allowing current to flow in one direction and blocking current in the opposite direction. In the case of the SK015L, the Anode terminal is the “Input” and the Cathode terminal is the “Output”. When the Gate terminal is at 0V (Ground), the switching current cannot pass through the device, as the Gate terminal acts as a barrier. Thus, no current flows between the Anode and Cathode terminals. However, when the Gate terminal is at a sufficient voltage, it creates a conducting path between the Anode and Cathode terminals, allowing current to flow between them. This current flow is then controlled by the Gate voltage and the current flowing through the device can be varied accordingly.

Conclusion

The SK015L two-pin miniature SCR is a very useful device for various applications, allowing for efficient mechanism and speed control, voltage regulation and direction reversal. Its high reliability and robust design makes it particularly well-suited for automotive applications, and its high blocking and turn-off capabilities make it an ideal choice for many electrical engineering projects. Therefore, it is not surprising that the SK015L SCR has become a staple of the electronics industry.

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