VS-ST1200C20K1P

Thyristors - SCRs are an important type of power semiconductor that can control and regulate current and voltage. What are the application fields and working principles of Thyristors - SCRs? The VS-ST1200C20K1P is such an SCR product of Vishay, and let\'s use it to analyze the application fields and working principles.

VS-ST1200C20K1P is a kind of thyristor with enhanced reverse recovery performance, higher inverse voltage and lower leakage current. Its main parameters are an on-state current of 1200A and a off-state voltage of 20KV, with a rail voltage of 25V.

The application fields for this product are mainly in the fields of lighting, home appliances, and electric power control. Its main uses are for DC to AC converters, LED lighting, stage lighting control, electric power control, and other power applications. It can be used for AC switching, DC switching, motor control, and phase control.

SCR is usually turned on by giving a positive trigger to the gate terminal which applies a small current to the junction of the gate and the cathode. The small current causes a small charge to build up, which induces a small potential difference between the anode and the cathode.

The current will then flow through the SCR, causing it to turn on and the anode-cathode voltage to increase. The current is then limited by the current-limiting protection component in the circuit, and the anode-cathode voltage decreases. The current through the SCR decreases and becomes zero, meaning that the SCR is off.

The switching off of SCR is also done by applying a gate voltage to the gate of the SCR. This triggers a reverse current, which counteracts the flow of the forward current in the SCR, causing the SCR to switch off. This process is known as reverse recovery.

In conclusion, the VS-ST1200C20K1P is an SCR with high reverse recovery performance, high inverse voltage, and low leakage current. Its wide application fields include DC to AC converters, LED lighting control, electric power control, and other power application fields. Its working principles involve controlling and regulating current and voltage by applying a trigger current or voltage to its gate.