T707083074BY

Thyristors are solid state semiconductor components that are commonly used as switches or as rectifiers in regulator circuits. They are also used as voltage-controlled switches in combination with other components to achieve a wide variety of circuit functions. Thyristors can either be used as either primary or secondary rectifiers, and they are often used in high power circuits due to their ability to handle large currents. Thyristors are divided into two main categories; SCRs (Silicon-Controlled Rectifier) and Triacs (Tri-State Controlled Switch).

SCRs (Silicon-Controlled Rectifier) are a type of Thyristor with three terminals, an Anode, Cathode, and Gate. When the Gate is left off or open, the SCR is off or not conducting. When a positive potential or current is applied to the Gate, the SCR turns on and begins conducting in both directions. This is referred to as Forward Blocking Mode and it allows for the SCR to act as a switch to control current flow. SCRs can be used for power control applications such as motor speed control, heating and hot water control, and lamp dimming. They are also used in switched mode power supplies and AC power regulation.

The T707083074BY is a 4-pin, 20A, 800V SCR. It has three terminals; the Anode, Cathode, and Gate. It has a trigger current rating of 30mA, trigger voltage rating of 1.5V, and a non-trigger current rating of 50mA. The T707083074BY is designed for operation at temperatures between -40 to 85 degrees Celsius. It has a maximum forward peak blocking voltage of 800V, a maximum forward surge current of 50A, and a maximum DC reverse blocking voltage of 800V. Its maximum reverse leakage current is less than 1mA.

The T707083074BY SCR has a wide range of applications, from controlling AC power for heating elements and motor speed control to controlling voltage for power supply circuits. It can be used in AC/DC power control circuits. The high surge current rating of the SCR makes it ideal for applications, such as soft start of high-power motors, AC motor speed control, and power factor correction. It is also used in timing circuits and in motor control applications, such as variable speed motor control. The SCR can also be used in AC control circuits, such as lighting circuit controlling, dimming, and power factor correction.

The working principle of an SCR is based on the P-N junction theory, which states that when a positive voltage is applied to the Gate of the SCR, it will cause the majority carriers (electrons and holes) to cross the junction, thereby allowing current to flow through the SCR. This is known as forward conduction. Current will continue to flow until the Gate voltage is removed, or if the Anode-Cathode voltage reaches its maximum blocking voltage, at which point the SCR will turn off. This is known as reverse conduction and it prevents the SCR from becoming overloaded.

In summary, the T707083074BY is a 4-pin, 20A, 800V SCR designed for a wide range of applications. It has a maximum forward peak blocking voltage of 800V and a maximum forward surge current of 50A. It can be used for AC control circuits, power control applications, motor speed control, power factor correction, and more. The working principle of the SCR is based on the P-N junction theory, which states that when a positive voltage is applied to the Gate of the SCR, it will allow currentflow through the SCR. This is known as forward conduction, and it will continue to flow until the Gate voltage is removed or until the Anode-Cathode voltage reaches its maximum blocking voltage.