C49A20

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Thyristors - SCRs are electro-sensitive semiconductor switches in which a small electric current can control a large current. One application of thyristors are power fast-switching devices where large currents and high voltages must be controlled, such as in electric motors, electric furnaces, and high power DC-AC power inverters. The C49A20 SCR is a popular thyristor for many different applications. The C49A20 is typically used in alarm systems, industrial controllers, and power conditioning in remote telephones and radio transceivers.

The C49A20 thyristor has several key features that make it ideal for high-power applications. It is rated for a maximum operating current of 170 amp at a maximum voltage of 40 volts and an operating temperature range of -40°C° to +100°C°. The breakdown voltage of the device is 55.5V, and it has a gate trigger current of 0.6A. The device has a relatively low threshold trigger current of only 0.1mA, which makes it well-suited to be triggered with low-level logic signals.

The C49A20 thyristor operates using a basic working principle known as a “gate-controlled switch”. When power is applied to the device through its gate terminal, it causes a small current to flow through the gate and into the gate terminal. This current causes the electrons of the thyristor to become excited and create an electric field between the gate and the anode of the device. When the current in the gate reaches a certain threshold, the electric field created by it forces the electrons of the thyristor to “crossover” from the anode to the cathode of the device, effectively turning the thyristor “on”. This process creates a low-resistance conducting path between the anode and the cathode of the thyristor, allowing current to flow freely between them.

The C49A20 can also be used in the opposite way to create a high-resistance path between the anode and the cathode of the thyristor. This is often used in industrial motor controllers where a high resistance path is desired to control the speed of an electric motor. By providing a low-level current to the gate terminal of the device, the electric field created by it will be reversed, causing the electrons of the thyristor to flow in the opposite direction. This will cause the resistance between the anode and cathode of the device to increase, reducing the flow of current and the speed of the motor.

The C49A20 is a very versatile thyristor that can be used for many different types of applications. It is suitable for use in alarm systems, industrial controllers, and power conditioning for remote telephones and radio transceivers. It also has application in high-power fast-switching circuits such as electric motors, heating elements, and power inverters. The C49A20 can easily be triggered with low-level logic signals and is highly durable with a maximum voltage of 40 volts and an operating temperature range of -40°C° to +100°C°.

The specific data is subject to PDF, and the above content is for reference