T390N12TOFXPSA1

Thyristors - SCRs - Modules

A Thyristor, or Silicon Controlled Rectifier (SCR), is a three-terminal semiconductor switch composed of silicon. The acronym SCR stands for silicon-controlled rectifier, which is a type of four-layer * transistor that was developed in the 1960s and is used for a variety of applications, such as controlling alternating current power regulators for voltage and frequency regulation, as well as controlling motors and switchgear. As with all thyristors, the T390N12TOFXPSA1 is capable of acting as a switch, while at the same time providing constant voltage across its terminals and avoiding any heat buildup.

Applications

The T390N12TOFXPSA1 can be used to control a variety of power subsystems requiring fast switching, such as industrial, automotive, and building automation applications, as well as in renewable energy systems. It is also used in high-power and high-voltage applications. For example, the T390N12TOFXPSA1 can be used in power converters for inverters, motor drives, active front ends, uninterrupted power supplies, and electric vehicles. It is also used in dynamic braking solutions and pulse–width modulation (PWM) motor drives.

Working Principle

The T390N12TOFXPSA1 is a three-terminal device that consists of three layers of silicon and two internal junctions. The three terminals, an anode (A), a gate (G), and a cathode (C) are connected between each other. When a voltage is applied to the gate and anode, the thyristor is turned on semi-conductively, allowing current to flow between the anode and cathode. As long as a positive voltage is applied on the gate, the thyristor will remain in the conduction state. When the gate voltage is removed, the thyristor will return to the nonconducting state.

The T390N12TOFXPSA1 has several advantages over other thyristors, such as low noise operation, high switching speeds, and low leakage currents. Additionally, the device is capable of withstanding high inrush currents and offers protection from short-circuit faults. It also has a high storage temperature of up to 150°C and is resistant to electromagnetic interference (EMI), making it suitable for applications where power grid stability is a concern.

Conclusion

The T390N12TOFXPSA1 is a versatile, three-terminal semiconductor switch designed for applications requiring fast switching, high reliability, and high inrush currents. Its construction provides protection from short-circuit faults, while its working principle enables constant voltage across its terminals and prevents heat buildup. Thanks to its in-built features and wide range of applications, the T390N12TOFXPSA1 is an ideal choice for a variety of industrial, automotive, and building purposes.