C387N

Thyristors - SCRs

A silicon controlled rectifier (SCR) is a special kind of thyristor, a type of semiconductor device that switches current through a circuit. The "S" in SCR stands for the silicon that it is made of. SCRs are made up of four layers of semiconductor material, usually silicon, and are capable of carrying much higher current than common diodes. The SCR has two basic operating modes: forward blocking and forward conduction.

C387N Application Field and Working Principle

The C387N is a three-terminal SCR with a large current capacity and a wide range of operating temperatures. It is commonly used in power supplies, DC motor control, high voltage AC motor control, and automated control systems. The C387N can be applied in both AC and DC motor applications, providing the flexibility and convenience of being able to select the best solution for the customer’s needs. In DC motor control, the C387N can increase the motor speed by reducing the applied voltage.

The C387N is triggered by a short pulse current applied to the device’s gate terminal. The gate current must be enough to turn on the SCR and keep it on. Once the SCR has been triggered, it will remain in the “on” state until the current through the device is reduced to a level below that which can sustain the current in the device. The current through the SCR will remain in this "sustained current" state until the voltage across the SCR reduces to a level which can support the current, or until the trigger pulse is removed.

The C387N has an extended area of operation, which allows the use of a single device in a wide variety of AC and DC motor control applications. The C387N also features a soft switching function, which greatly reduces the risk of damage to the SCR due to surges caused by rapid changes in voltage or current.

Benefits of C387N SCR

The C387N SCR’s many advantages include the following:

• High current capacity
• Wide range of operating temperatures
• Can be used in both AC and DC motor applications
• Soft switching function to protect from surges
• Highly reliable and durable
• Cost effective

The C387N SCR is a versatile and powerful device that can be used in a variety of applications, and is a great choice for those looking for reliable and cost-effective solutions. With its wide range of operating temperatures and its ability to withstand high currents and voltages, the C387N SCR is sure to be a valuable asset in any power or control system.