T700223504BY

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Thyristors - SCRs

SCRs, or silicon-controlled rectifiers, are one of the most common type of thyristors. SCR is a three-terminal semiconductor device, an electronic switch. Its purpose is to control the flow of electric current by switching off or on, depending on the voltage at its two main terminals.

The T700223504BY is an SCR of the 2200V MT2 series made by Littelfuse. It has a maximum operating temperature of 125°C and a trigger voltage between 8V and 15V. It is encapsulated in a TO-220AB plastic package and has glass passivated junction. It has a high surge current capability and is suitable for industrial applications. Its typical applications are power control and motor speed control.

An SCR consists of four layers of alternating P-type and N-type materials. The P-N layers form an anode and cathode, and the two extra layers form the Gate terminal. When a positive voltage is applied to the anode with respect to the cathode, a small current flows through the SCR. This current is known as the holding current, and it keeps the SCR switched on. When a voltage is applied to the gate terminal, it lowers the voltage at the PN junction and increases the current flowing, thus switching the SCR on. Current then flows between the anode and the cathode until it is switched off by reducing the anode\'s voltage.

Thus, in SCR applications, by controlling the voltage applied to the Gate terminal, we can control the current that is allowed to pass between the anode and the cathode. This makes the T700223504BY an ideal choice for applications such as motor speed control and power control. By controlling the Gate voltage, we can control the current that is allowed to flow through the circuit, thus controlling the motor speed or the power output.

The T700223504BY SCR is a useful device in many electronic circuits and systems, and is one of the most popular and widely used devices of its type. It provides reliable and precise current control, which is invaluable in many applications.

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